HomeMy WebLinkAboutOPS 21-24Report to
Council
Report Number: OPS 21-24 Date: November 25, 2024
From: Brian Duffield
Director, Operations
Subject: Dunbarton Indoor Pool Emergency Repairs
- File: A-1440
Recommendation:
1. That Council is notified of the quote submitted by Semple Gooder Roofing Corporation in
the amount of $211,758.49 (net HST) or $235,148.48 (HST included) in accordance with Section 12.01 Emergency Purchase of the Purchasing Policy;
2. That the total gross project cost of $356,521.00 (HST included), including the amount of the quotation, contingency and other associated costs, and the net project cost of
$321,058.00 (net HST), be approved;
3. That the Director, Finance & Treasurer be authorized to finance the net project cost of $321,058.00 as provided for in the Emergency Operational Needs Capital Budget; and,
4. That the appropriate officials of the City of Pickering be authorized to take the necessary actions as indicated in this report.
Executive Summary: The purpose of this report is to notify Council of the emergency repairs required at Dunbarton Indoor Pool. The Dunbarton Indoor Pool roof is reviewed by a professional engineer annually due to it containing Reinforced Autoclaved Aerated Concrete
(RAAC). RAAC has been alerted by the Ministry of Education as requiring investigation, assessment and management strategies.
RAAC settlement and full snow loads/ponding on the roof over time has caused nominal water ponding to become large ponding. The 2024 professional engineering review by Barry Brian Associates (BBA) concluded that large ponding on the roof could cause structural failure as the
roof deck is not designed to support a full snow load with large amounts of frozen water. To remedy this, the professional engineer (BBA) recommended emergency repairs to be completed before winter 2024.
As a professional building sciences consultant and with past experience at Dunbarton Indoor Pool, Read Jones Christoffersen Limited was retained to design and administer the emergency
repairs at a price of $34,600.00 (HST excluded). Semple Gooder Roofing Corporation, a qualified roofing contractor with demonstrated experience at the City, submitted a price of $235,148.48 (HST included), which was accepted in accordance with the Purchasing Policy, Section 12.01 Emergency Purchase. The total gross project cost is estimated to be $356,521.00 (HST included) and the total net project cost is estimated at $321,058.00 (net of
OPS 21-24 November 25, 2024
Subject: Dunbarton Indoor Pool Emergency Repairs Page 2
HST rebate).
Relationship to the Pickering Strategic Plan: The recommendations in this report respond to the Pickering Strategic Plan Priority of Advocate for an Inclusive, Welcoming, Safe
& Healthy Community.
Financial Implications:
1. Quotation Amount
Quotation $208,096.00
HST (13%) 27,052.48 Total Gross Quotation Cost $235,148.48 2. Estimated Project Costing Summary Quotation $208,096.00 Consulting Costs by Read Jones Christoffersen Ltd. 34,600.00 Contingency 72,809.00
Total Project Cost $315,505.00 HST (13%) 41,016.00 Gross Project Costs $356,521.00 HST Rebate (11.24%) (35,463.00)
Total Net Project Costs $321,058.00
3. Approved Source of Funds
Description
Source of Funds Account Code Budget Required
Dunbarton Indoor Pool Emergency Repairs
Emergency Operational Needs Capital Budget
503510 $200,000.00 $321,058.00
Total Funds $200,000.00 $321,058.00
Project Cost under (over) approved funds by ($121,058.00)
In accordance with Purchasing Policy PUR 010, Section 12.01 in an emergency situation staff are permitted to obtain such goods and services as are necessary to respond to the emergency.
OPS 21-24 November 25, 2024
Subject: Dunbarton Indoor Pool Emergency Repairs Page 3
If the purchase amount exceeds $50,000.00, the Director must notify the Treasurer and CAO and the Director shall submit a report of the incident to the appropriate Committee and Council
at the earliest possible time. In this case, the roof could fail upon a full snow load and requires
immediate repairs. A larger contingency has been included to allow for concealed conditions that could affect the work, due to the age and condition of the building. The funding shortfall will be addressed through
the year-end process whereby under expenditures from other accounts and or projects would
be available to fund this project.
Discussion: The purpose of this report is to notify Council of the emergency repairs required at Dunbarton Indoor Pool. The Dunbarton Indoor Pool was constructed in 1971, renovated in 2008, and miscellaneous repairs were completed in 2015. The pool roof structure is constructed of Siporex roof decking spanning between laminated timber beams. Siporex is a
type of Reinforced Autoclaved Aerated Concrete (RAAC). The Ministry of Education issued a 2023 memorandum stating that buildings that contain RAAC shall investigate, assess and have a management strategy for the RAAC, including use of specialized professional engineering services.
Professional structural reviews were performed in 2020 and 2023 by BBA, concluding that the
structure was in good condition. The 2023 report additionally noted that professional annual
inspections of the Dunbarton Indoor Pool roof structure be conducted.
RAAC settlement and full snow loads/ponding on the roof over time has caused nominal water ponding to become large ponding. During the 2024 annual inspection, the professional engineer (BBA) concluded that immediate repairs are required due to large ponding on the
pool roof. The ponding is a structural concern because the winter months will cause the
ponded water to freeze, which combined with a full snow load could cause failure of the roof deck or supporting structure.
As per Purchasing Policy, Section 12.01, the Operations Department is notifying Council of the work being completed by Semple Gooder Roofing Corporation in the amount of $235,148.48
(HST included). The total net project cost inclusive of consulting, contingency and net HST
rebate is estimated as $321,058.00.
Attachment:
1. Professional Engineering Report by Barry Brian Associates, dated September 13, 2024
OPS 21-24 November 25, 2024
Subject: Dunbarton Indoor Pool Emergency Repairs Page 4
Prepared By: Approved/Endorsed By:
Original Signed By: Original Signed By: Dennis Yip, P.Eng., PMP®, CEM, LEED® AP Stan Karwowski, MBA, CPA, CMA
Manager, Facilities Capital Projects Director, Finance & Treasurer
Original Signed By: Original Signed By:
Brian Duffield Cathy Bazinet, CPPB, NIGP-CPP Director, Operations Manager, Procurement
BD:dy
Recommended for the consideration
of Pickering City Council
Original Signed By:
Marisa Carpino, M.A. Chief Administrative Officer
Transmittal
To:City of Pickering Project No.:24136
Address:1 The Esplanade Date:September 13, 2024
Pickering, Ontario, L1V 6K7
Attention:Dennis Yip
Project Name:Pickering Dunbarton Pool- Structural Load Study and Siporex Deck ConditionReview
For your:“Approval Via:“Mail
“Distribution “Courier
Information and use “By hand
“Review and comment “To be picked up
Action taken:“Reviewed “Fax
“Reviewed as noted E-mail
“Revise and resubmit
“Not reviewed
Qty.: Drawing
No.:
Issue
No.:
Revision
No.:
Description:
1 Copy - - Draft Structural Report dated September 12, 2024
cc: Doug McLaughlin, Barry Bryan Associates
___________________________________Shivanie Motielal
Form M-1 Rev. 1 12-07-02Transmittal.wpd
Attachment 1 to Report OPS 21-24
STRUCTURAL LOAD STUDY AND SIPOREX DECK CONDITION REVIEW FOR
PICKERING DUNBARTON POOL
655 Sheppard Ave, Pickering, ON L1V 1G2
City of Pickering
BBA PROJECT NO. 24136
SEPTEMBER 12, 2024
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
TABLE OF CONTENTS
PART 1 - INTRODUCTION .................................................................................................................................... 1
1.1 AUTHORIZATION .......................................................................................................................................... 1
1.2 OBJECTIVES .................................................................................................................................................. 1
1.3 REVIEW METHODOLOGY .............................................................................................................................. 1 1.4 STATEMENT OF LIMITATION ........................................................................................................................ 2
PART 2 – BUILDING DESCRIPTION ....................................................................................................................... 3
PART 3 - OBSERVATIONS .................................................................................................................................... 4
3.1 SIPOREX DECK CONDITION .................................................................................................................................. 4
3.1.1. Roofing Membrane ........................................................................................................................................................... 4 3.1.2. Roofing Membrane Test Cuts ............................................................................................................................................ 4 3.1.3. Loading Study .................................................................................................................................................................... 4 3.1.4. Pool Siporex Roof Deck (Underside) ................................................................................................................................. 5
PART 4 – CONCLUSION AND RECOMMENDATIONS ............................................................................................. 6
APPENDICES ........................................................................................................................................................ I
PHOTOGRAPHS .............................................................................................................................................................. II
PETRO MACALLUM LTD.’S FIELD REPORT NO. 1 .................................................................................................................. III
PETRO MACALLUM LTD.’S FIELD REPORT NO. 2 .................................................................................................................. IV
RCJ ENGINEERS’ ROOFING EVALUATION ............................................................................................................................. V
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates 1 | Page
PART 1 - INTRODUCTION
1.1 AUTHORIZATION
This structural condition audit of the Dunbarton Pool Deck, including a loading simulation study, has
been undertaken by Barry Bryan Associates, Architects, Engineers, and Project Managers, for the
Dunbarton Pool located at 655 Sheppard Avenue, on behalf of the City of Pickering. Authorization to
undertake this study was received from Mr. Dennis Yip, Manager, Facilities Capital Assets Department
for the City of Pickering.
1.2 OBJECTIVES
The objectives of the structural review, as outlined in Barry Bryan Associates’ (BBA) proposal for
Structural Investigation of the siporex deck and loading study were as follows:
1. Complete a visual review of the building to determine the general condition of the siporex deck
from the underside and top side where roofing test cuts were completed.
2. Identify any areas of distress or deterioration for the siporex roof deck.
3. Develop an in-situ loading study for localized areas of the siporex roof deck.
4. Monitor deflection and the loading study areas on the roof deck.
5. Complete a deflection survey along the underside of the overall siporex deck through the pool
area.
6. Identify any areas of deterioration observed on the building components.
7. Provide recommendations regarding the condition of the siporex based on the visual review and
loading study.
1.3 REVIEW METHODOLOGY
Barry Bryan Associates completed a non-destructive, visual inspection of the buildings siporex roof deck
along with completion of a loading study at localized areas of the roof deck on August 24, 2024. BBA
also visually review the top side of the siporex deck from roofing test cuts on August 10, 2024. During
our review we checked for evidence of deterioration and/or distress within the siporex decking.
In general, the structural review included looking for evidence of the following signs of distress:
• Deterioration/cracking of Siporex roof panels.
• Excessive deflection in the structural roof framing (current condition).
• Excessive deflection in the structural roof framing (static loading study at localized areas).
Reference drawings of the existing building structure were available at the time of our review.
Additionally, BBA completed previous reviews of the facility to assess the condition of the base building
structure and siporex roof decking.
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates 2 | Page
1.4 STATEMENT OF LIMITATION
All comments and observations contained in this report are based on visual observations made during
the inspection on August 24, 2024, and August 10, 2024.
A scissor lift was utilized to access the roof structure above the swimming pool. As the lift was unable to
provide full, direct access throughout the entirety of the structure, we were only able to conduct a
close-up review for the perimeter of the roof framing above the pool. Other observations of the
swimming pool roof framing were made from the ground.
Any design and/or construction deficiencies not recorded herein were not evident at the time of the
inspection.
This structural assessment was limited to the main pool siporex roof decking spanning between
laminated timber beams.
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates 3 | Page
PART 2 – BUILDING DESCRIPTION
The Dunbarton Pool is located at 655 Sheppard Avenue in Pickering, Ontario. The original facility was
constructed in 1971, was renovated in 2008, and miscellaneous repairs were completed in 2015. A
structural assessment was completed by BBA in July 2020 and November 2023 to review the condition
of the major structural components, including the Siporex roof deck, laminated timber beams, and
concrete masonry unit walls. Following the July 2020 structural review, additional repairs were
completed by BBA in 2022 to help stabilize areas of reported deterioration from the underside of the
siporex roof decking.
We understand that the 2008 renovations generally consisted of the installation of new mechanical
equipment within the roof penthouse and the associated structural reinforcing/modifications required
to support/install this equipment.
Localized concrete repairs were completed in 2015 to the suspended pool deck slab. Engineered
drawings detailing these repairs were provided to BBA for our information.
The facility generally includes a Swimming Pool, Change Rooms, Family Bathroom, Mechanical
Penthouse, Instructor’s Office, Storage Rooms, and a Lobby. In the basement, there are additional
Change Rooms along with a Conference Room and an Office. The mechanical equipment for the pool is
located directly beneath the suspended deck slab.
The building’s roof structure directly above the pool consists of 7” and 8” thick Siporex panels spanning
roughly 15’-0” between laminated timber beams. The remaining roof structure not within the Pool area
generally consists of corrugated steel decking on open web steel joists and steel beams. The floor
structure is composed of composite steel deck on open web steel joists and steel beams at the
penthouse level, corrugated steel deck on open web steel joists and steel beams, as well as concrete
slabs on grade at the ground floor level, and concrete slab on grade in the basement level. The
foundation is composed of concrete block masonry walls and reinforced concrete walls with reinforced
concrete strip footings.
BBA’s scope of work for this assignment was related to the structural review of the siporex roof deck.
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates 4 | Page
PART 3 - OBSERVATIONS
BBA attended Dunbarton Pool on August 10, 2024, to visually review the condition of the top side of the
siporex roof deck, where test cuts had been cut into the roof deck. The test cuts were completed and
approximately 12” x 12” in side and exposed a tar layer on top side of the siporex deck.
BBA completed a follow-up site visit to the pool on August 24, 2024, to complete a review along the
underside of the siporex roof deck along with a loading study on the roof with deflection monitoring of
the loaded areas of the siporex roof deck.
We have summarized our observations from the site visit below.
3.1 Siporex Deck Condition
3.1.1. Roofing Membrane
The City of Pickering reported that it appeared the roof membrane over the siporex deck had
turned “spungy” and that moisture mitigation through the roof membrane to the insulation may
be occurring. BBA was on the roof during the initial review of the project and observed
extensive ponding in areas up to 5”-6” deep (Photos and 2). RJC Consulting Engineers were
retained to assist with the roofing system review. We recommend that all ponding water that is
standing and not draining be eliminated from the roof by adding new tapered insulation or new
roof drains.
3.1.2. Roofing Membrane Test Cuts
BBA attended the site on August 10, 2024, to review test cut openings in the roof to review the
condition of the top of the siporex roof deck. The tests cuts confirmed that there was an
asphalt-based coating previously applied and adhered to the top of the siporex roof deck
(Photos 3, 4, and 5). The tar coating was locally scraped, cutting into the siporex surface layer,
confirming a general dry condition on the top of the siporex roof deck below the coating.
3.1.3. Loading Study
BBA prepared a loading study program that simulated the applied live loads resulting from snow
loads on the roof deck. The loading study program and drawings have been attached to this
letter for reference. The loading simulation in-situ was completed by placing 8” thick hollow
concrete masonry blocks on the roof system to simulate a snow load of 38 pounds per square
foot (1.82Kpa), which is a factored snow load (Photos 6 and 7). The load was applied and
monitored for deflection from inside the natatorium. The deflection was monitored at 20%,
40%, 60%, 80%, and 100% load intervals. The allowable maximum total deflection on the span
for live load is 7 mm (L/360) and 18.74 mm (L/240) for total deflection. The report prepared by
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates 5 | Page
Peto MacCallum dated September 9, 2024, outlines the results from the loading program is
attached for reference.
The roof was loaded in two (2) areas and monitored for deflection at the 20% intervals. The
maximum deflection observed during the load study was 10 mm, which is within the maximum
deflection limits for the roof deck under current design deflection requirements.
The overall roof in the static load state was reviewed without loading on the roof system. All
ponding on the roof had been removed to assess this state. The purpose of this study was to
assess current plastic deflection on the roof. This study observed a maximum deflection
between the spans under dead load only of 50 mm. We are unable to confirm if this is a result of
plastic deflection creep, initial deflections after installation, however, the total deflection limits
under a service state for total load does exceed the L/240 deflection limit and would not be
considered acceptable based on the Ontario Building Code. However, deflection limits are for
serviceability elements only, and there is no ceiling inside the natatorium that would be affected
by this deflection. We recommend that all drainage on the roof be eliminated by adding
additional drains, sumps, and/or scuppers to promote positive drainage immediately. The report
outlining the deflection along the underside of the roof deck that was prepared by Peto
MacCallum and dated September 9, 2024, is attached for reference.
3.1.4. Pool Siporex Roof Deck (Underside)
Our observations regarding the existing Siporex roof panels are listed below:
• Visible joint separation between the Siporex panels was observed at multiple locations
throughout the roof structure, particularly within the second bay from the west (Photos
8 and 10). This indicates that there could be some minor differential movement and/or
deflection between the adjacent panels, which is generally normal for this type of
decking material. However, we did not observe significant changes from the previous
review of the siporex deck joints that was completed in August 2023.
• The Siporex panel adjacent to the south wall in the third bay from the west shows some
evidence of joint separation from the adjacent panel, which may be due to lateral
movement or a difference in deflection between the two adjacent panels (Photo 10).
This condition has not changed since the previous review completed in 2023.
• There were areas where panels and/or structure around the concrete masonry block
perimeter bearing walls had partially deflected and were not in full bearing at the end
portion of the wood beam because of the deflection on the beams or panels that is
differential to the concrete masonry block walls. This condition was observed during
past condition reviews and appears unchanged during this follow-up review (Photos 11
and 12).
• The Siporex panels generally appeared in good condition; there was no evidence of
panel fractures, spalling corners, or deterioration that would indicate evidence of
structural overstress.
Overall, the existing Siporex panels appear in fair condition. We recommend that these panels
continue to be inspected from the ground by a competent person on a yearly basis to identify
any changes in the existing conditions.
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates 6 | Page
PART 4 – CONCLUSION AND RECOMMENDATIONS
We completed a load study program and structural condition review for the siporex roof deck over the
natatorium at the Dunbarton Pool located in Pickering.
The condition of the siporex roof decking based on the results from the load study program indicates
that the decking is generally in fair to good condition structurally. We did not observe at the time of the
site visits any deterioration or structural distress that would indicate the siporex decking system is failing
or overstressed. We have summarized our remedial recommendations as follows:
Please refer to the photographs in the Appendix for observations regarding the siporex deck system at
the time of our site visits. These areas were noted during the 2020 and 2023 review and must be
continuously monitored and professionally reviewed on an annual basis.
RECOMMENDED IMMEDIATE REPAIRS:
1. Conduct annual inspections on the facility to assess the structural integrity of the building’s
superstructure siporex decking for changes in the conditions or performance of the decking
systems. We recommend this be completed on an annual basis while long-term replacement
considerations and budgets are implemented for the siporex roof deck.
2. There was ponding on the roof that has been observed and identified in the RJC Roofing
Evaluation report dated September 6, 2024. The ponding is a structural concern for the roof
decking because in winter months the ponded water will freeze and apply load to the roof in
combination with the full snow load on top. The roof decking is not designed to support a full
snow load with the frozen ponded water and could cause structural failure of the roof decking
or supporting superstructure. The ponding is an immediate structural concern that needs to be
addressed before winter by adding sumps, additional roof drains, and/or tapered insulation to
eliminate the ponded water.
3. The RJC Roofing Evaluation report dated September 6, 2024, also indicated that there is known
moisture infiltration occurring into the roof system beyond the roof membrane. The leaking roof
needs to be repaired immediately to prevent moisture infiltration onto the siporex decking.
Based on past performance issues with siporex, it is known that the siporex decking will start to
deteriorate in an accelerated manner when exposed to continued moisture.
RECOMMENDED REPAIRS: (2-5 years)
1. We observed several notable conditions at the existing Siporex roof panels:
a. Cracks were observed at the joints between adjacent Siporex panels at multiple
locations throughout the roof structure. This indicates probable differential deflection
between the panels. Siporex panels differentially deflect under varying load conditions.
The existing joint cracks have not increased in width and show no evidence of any
change in differential deflection or movement since the past condition reviews
completed by BBA. These joints should be monitored for further separation or spalling
on a yearly basis.
b. Several of the perimeter panels appeared to be offset higher than the rest of the roof
deck. This issue was first identified in 2020 and should be addressed in the next two (2)
years. We recommend that shims or grout be added below the bearing points.
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates 7 | Page
RECOMMENDED LONGTERM REPAIRS: (5-10 years)
1. Based on our understanding of past performance of similar siporex roof deck systems, it is our
opinion that the current siporex framing system is approaching or at the end of its serviceable
life span and will require intervention. As we observed the siporex at the Dunbarton Pool to be
in fair to good condition, but we recommend that the roof deck program be initiated to facilitate
a longer-term roofing and decking replacement program for the entire extents of the siporex
roof deck at the Dunbarton Pool.
The ongoing maintenance is required to preserve the integrity of the existing building structure and
maintain the building envelope.
We trust the above information meets your requirements. Should you have any further questions,
please do not hesitate to contact our office.
Yours very truly,
BARRY BRYAN ASSOCIATES
Architects, Engineers, Project Managers
Doug McLaughlin, P. Eng.
DM/sm
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates i | Page
APPENDICES
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates ii | Page
Photographs
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL Project No. 24136
Photo 1 Photo 2
Photo 3 Photo 4
24136R20240912 Structural Report - Photos.wpd
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL Project No. 24136
Photo 5 Photo 6
Photo 7 Photo 8
24136R20240912 Structural Report - Photos.wpd
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL Project No. 24136
Photo 9 Photo 10
Photo 11 Photo 12
24136R20240912 Structural Report - Photos.wpd
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates iii | Page
Petro Macallum Ltd.’s Field Report No. 1
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t: 905-822-0090, 1-833-31-MONIR f: 905-822-7911 monir.ca
PC-FO-003/Rev. March 18, 2022
August 27, 2024 Job Number: 24.M058
Pages: 12 (including cover)
To: Daniel Kang, Peto MacCallum Ltd., skang@petomaccallum.com Project Name: Dunbarton Pool - Pickering
RE: PSM Real- time Monitoring Report 001 Report Frequency: On request
Attached please find the above-noted report from readings taken on August 24, 2024.
If you have any questions, please contact the undersigned. Regards,
Ruel Dominguez Monir Precision Monitoring Inc.
15 – 3100 Ridgeway Drive
Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project DUNBARTON POOL -PICKERING
Title MONITORING PLAN
Page No.: 1 of 1 Issue Date: 24.08.26
Job: 24.M058 Dwg. No. MON-1
PC-FO-215(L)/Rev. March 18, 2022
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR f. 905-822-7911 www.monir.ca
Project DUNBARTON POOL - PICKERING
Title PSM MONITORING PLAN
Page No.: 1 of 2 Issue Date: 24.08.26
Job: 24.M058 Dwg. No. MON-2
PC-FO-215(P)/Rev. March 18, 2022
209
201
210 202
211 203
212
204
213 205
214 206
215 207
216 208
TEST AREA 1
NORTH
EAST
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR f. 905-822-7911 www.monir.ca
Project DUNBARTON POOL - PICKERING
Title PSM MONITORING PLAN
Page No.: 2 of 2 Issue Date: 24.08.26
Job: 24.M058 Dwg. No. MON-2
PC-FO-215(P)/Rev. March 18, 2022
106
108
109
105 104 103 102 101
110 111 112 113
107R
114R
EAST
NORTH
TEST AREA 2
25.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 2
-15
-10
-5
0
5
10
15
101 102 103 104 105 106 107 108 109 110 111 112 113 114
Di
s
p
l
a
c
e
m
e
n
t
(
m
m
)
Target Number
Vertical Displacement
R001 25%R002 50%R003 60%R004 80%R005 100%
Positive represents movement up; negative represents movement down.
PC-FO-206/Rev. August 23, 2023
25.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 2
-15
-10
-5
0
5
10
15
101 102 103 104 105 106 107 108 109 110 111 112 113 114
Di
s
p
l
a
c
e
m
e
n
t
(
m
m
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Target Number
Vertical Displacement
R006 100% + 10 Bricks R007 0%
Positive represents movement up; negative represents movement down.
PC-FO-206/Rev. August 23, 2023
25.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 1
-15
-10
-5
0
5
10
15
201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216
Di
s
p
l
a
c
e
m
e
n
t
(
m
m
)
Target Number
Vertical Displacement
R001 20%R002 40%R003 50%R004 80%R005 100%
Positive represents movement up; negative represents movement down.
PC-FO-206/Rev. August 23, 2023
25.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 1
-15
-10
-5
0
5
10
15
201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216
Di
s
p
l
a
c
e
m
e
n
t
(
m
m
)
Target Number
Vertical Displacement
R006 100% + 10 Bricks R007 0%
Positive represents movement up; negative represents movement down.
PC-FO-206/Rev. August 23, 2023
24.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 2
R001 25%R002 50%R003 60%R004 80%R005 100%Movements (mm)Movements (mm)Movements (mm)Movements (mm)Movements (mm)
Easting Northing Elevation Vertical Vertical Vertical Vertical Vertical
101 507.511 481.187 104.632 2024-08-24 0 0 0 -1 -1
102 507.526 481.984 104.608 2024-08-24 -1 -2 -2 -3 -3
103 507.537 482.798 104.591 2024-08-24 -2 -3 -4 -5 -5
104 507.529 483.656 104.576 2024-08-24 -2 -3 -4 -5 -5
105 507.514 484.300 104.574 2024-08-24 -1 -2 -2 -4 -4
106 507.529 484.966 104.577 2024-08-24 -2 -2 -2 -3 -4
107 507.546 485.718 104.582 2024-08-24 0 -1 -1 -2 -2108506.706 481.183 104.633 2024-08-24 0 -1 -1 -1 -1109506.722 482.068 104.608 2024-08-24 -1 -2 -2 -3 -3110506.719 482.921 104.588 2024-08-24 -2 -3 -3 -4 -5111506.718 483.672 104.578 2024-08-24 -1 -2 -3 -4 -4112506.729 484.343 104.576 2024-08-24 -1 -3 -3 -4 -5
113 506.732 485.022 104.578 2024-08-24 -1 -2 -2 -2 -3114506.746 485.725 104.585 2024-08-24 0 -1 -1 -2 -2
Elevations for the monitoring are based on a benchmark located on site, having an elevation of 100.000m.Accuracy of readings is +/- 2mm.All vertical movements are from the initial measurements.An R after a target number indicates a reflectorless point.
*Indicates a reinitialized target; a reinitialized target includes the movement previously reported.
Target #Initial Reading Date of
Initial
Reading
PC-FO-206/Rev. August 23, 2023
24.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 2
R006 100% + 10 Bricks R007 0%Movements (mm)Movements (mm)
Easting Northing Elevation Vertical Vertical
101 507.511 481.187 104.632 2024-08-24 -1 0
102 507.526 481.984 104.608 2024-08-24 -4 0
103 507.537 482.798 104.591 2024-08-24 -7 0
104 507.529 483.656 104.576 2024-08-24 -7 0
105 507.514 484.300 104.574 2024-08-24 -6 0
106 507.529 484.966 104.577 2024-08-24 -5 0
107 507.546 485.718 104.582 2024-08-24 -3 0
108 506.706 481.183 104.633 2024-08-24 -1 -1
109 506.722 482.068 104.608 2024-08-24 -3 0
110 506.719 482.921 104.588 2024-08-24 -6 0
111 506.718 483.672 104.578 2024-08-24 -6 0
112 506.729 484.343 104.576 2024-08-24 -6 0
113 506.732 485.022 104.578 2024-08-24 -4 0
114 506.746 485.725 104.585 2024-08-24 -3 0
Elevations for the monitoring are based on a benchmark located on site, having an elevation of 100.000m.
Accuracy of readings is +/- 2mm.
All vertical movements are from the initial measurements.
An R after a target number indicates a reflectorless point.
*Indicates a reinitialized target; a reinitialized target includes the movement previously reported.
Target #Initial Reading Date of
Initial
Reading
PC-FO-206/Rev. August 23, 2023
24.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 1
R001 20%R002 40%R003 50%R004 80%R005 100%Movements (mm)Movements (mm)Movements (mm)Movements (mm)Movements (mm)
Easting Northing Elevation Vertical Vertical Vertical Vertical Vertical
201 520.591 482.229 104.614 2024-08-24 0 -1 -1 -1 -1
202 520.981 482.229 104.609 2024-08-24 0 0 -1 -1 -1
203 521.393 482.223 104.606 2024-08-24 0 -1 -1 -2 -2
204 521.799 482.227 104.604 2024-08-24 0 -1 -1 -2 -2
205 522.430 482.240 104.605 2024-08-24 -1 -1 -2 -2 -3
206 523.047 482.230 104.609 2024-08-24 0 -1 -1 -1 -1
207 523.645 482.232 104.618 2024-08-24 -1 -1 -1 -2 -2208524.261 482.231 104.628 2024-08-24 0 0 0 0 0209520.566 483.038 104.615 2024-08-24 -1 -1 -2 -2 -2210520.985 483.035 104.610 2024-08-24 -1 -1 -2 -2 -3211521.415 483.027 104.606 2024-08-24 -1 -2 -2 -2 -3212521.901 483.019 104.604 2024-08-24 0 -1 -1 -2 -2
213 522.420 483.024 104.604 2024-08-24 0 -1 -1 -2 -2
214 523.051 483.023 104.608 2024-08-24 -1 -1 -1 -2 -2
215 523.644 483.033 104.617 2024-08-24 -1 -1 -1 -1 -2
216 524.245 483.030 104.627 2024-08-24 0 0 0 0 0
Elevations for the monitoring are based on a benchmark located on site, having an elevation of 100.000m.Accuracy of readings is +/- 2mm.
All vertical movements are from the initial measurements.
An R after a target number indicates a reflectorless point.
*Indicates a reinitialized target; a reinitialized target includes the movement previously reported.
Target #Initial Reading Date of
Initial
Reading
PC-FO-206/Rev. August 23, 2023
24.M058 Dunbarton Pool - Pickering
Precision Survey Monitoring
Test Area 1
R006 100% + 10 Bricks R007 0%Movements (mm)Movements (mm)
Easting Northing Elevation Vertical Vertical
201 520.591 482.229 104.614 2024-08-24 -2 -1
202 520.981 482.229 104.609 2024-08-24 -1 0
203 521.393 482.223 104.606 2024-08-24 -2 -1
204 521.799 482.227 104.604 2024-08-24 -2 0
205 522.430 482.240 104.605 2024-08-24 -3 -1
206 523.047 482.230 104.609 2024-08-24 -2 0
207 523.645 482.232 104.618 2024-08-24 -2 -1
208 524.261 482.231 104.628 2024-08-24 0 0
209 520.566 483.038 104.615 2024-08-24 -2 -1
210 520.985 483.035 104.610 2024-08-24 -3 -1
211 521.415 483.027 104.606 2024-08-24 -3 -1
212 521.901 483.019 104.604 2024-08-24 -2 0
213 522.420 483.024 104.604 2024-08-24 -3 0
214 523.051 483.023 104.608 2024-08-24 -2 -1
215 523.644 483.033 104.617 2024-08-24 -2 0216524.245 483.030 104.627 2024-08-24 0 0
Elevations for the monitoring are based on a benchmark located on site, having an elevation of 100.000m.
Accuracy of readings is +/- 2mm.
All vertical movements are from the initial measurements.
An R after a target number indicates a reflectorless point.
*Indicates a reinitialized target; a reinitialized target includes the movement previously reported.
Target #Initial Reading Date of
Initial
Reading
PC-FO-206/Rev. August 23, 2023
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates iv | Page
Petro Macallum Ltd.’s Field Report No. 2
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t: 905-822-0090, 1-833-31-MONIR f: 905-822-7911 monir.ca
PC-FO-003/Rev. March 18, 2022
August 28, 2024 Job Number: 24.M058A
Pages: 13 (including cover)
To: Daniel Kang, Peto MacCallum Ltd., skang@petomaccallum.com Project Name: Dunbarton Pool - Pickering
RE: Deck Laser Scan Survey Report Report Frequency: On request
Attached please find the above-noted report from readings taken on August 24, 2024.
If you have any questions, please contact the undersigned. Regards,
Mark Girin Monir Precision Monitoring Inc.
15 – 3100 Ridgeway Drive
Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project DUNBARTON POOL -PICKERING (DECK SURVEY)
Title MONITORING PLAN
Page No.: 1 of 1 Issue Date: 24.08.26
Job: 24.M058A Dwg. No. MON-1
PC-FO-215(L)/Rev. March 18, 2022
15 – 3100 Ridgeway Drive
Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
OVERVIEW
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A Dwg. No. MON-2
PC-FO-215(L)/Rev. March 18, 2022
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 1 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 1 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
-0.040 m
-0.050 m
From [m] To [m] %
-0.060 -0.050 < 0.1
-0.050 -0.040 11.42
-0.040 -0.030 43.44
-0.030 -0.020 26.41
-0.020 13.74
4.77-0.010
0.000
-0.010
0.000
0.027 0.13
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 2 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 2 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
From [m] To [m] %
-0.040 -0.030 < 0.1
-0.030 -0.020 41.15
-0.020 44.70
13.64-0.010
0.000
-0.010
0.000
0.011 0.47
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 3 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 3 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
From [m] To [m] %
-0.031 -0.030 < 0.1
-0.030 -0.020 38.90
-0.020 44.03
16.62-0.010
0.000
-0.010
0.000
0.013 0.44
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 4 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 4 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
From [m] To [m] %
-0.031 -0.030 < 0.1
-0.030 -0.020 44.75
-0.020 37.82
16.77-0.010
0.000
-0.010
0.000
0.011 0.66
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 5 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 5 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
From [m] To [m] %
-0.033 -0.030 < 0.1
-0.030 -0.020 42.89
-0.020 34.58
19.17-0.010
0.000
-0.010
0.000
0.013 3.35
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 6 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 6 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
-0.040 m
-0.050 m
From [m] To [m] %
-0.052 -0.050 < 0.1
-0.050 -0.040 17.09
-0.040 -0.030 45.51
-0.030 -0.020 27.77
-0.020 8.27
1.33-0.010
0.000
-0.010
0.000
0.015 < 0.1
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 7 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 7 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
-0.040 m
-0.050 m
From [m] To [m] %
-0.050 -0.040 9.25
-0.040 -0.030 44.53
-0.030 -0.020 33.22
-0.020 10.45
2.53-0.010
0.000
-0.010
0.000
0.012 < 0.1
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 8 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 8 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
-0.040 m
From [m] To [m] %
-0.040 -0.040 < 0.1
-0.040 -0.030 36.81
-0.030 -0.020 37.05
-0.020 20.86
5.18-0.010
0.000
-0.010
0.000
0.008 < 0.1
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 9 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 9 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
-0.040 m
-0.050 m
From [m] To [m] %
-0.050 -0.040 3.41
-0.040 -0.030 51.32
-0.030 -0.020 34.39
-0.020 9.80
1.01-0.010
0.000
-0.010
0.000
0.007 < 0.1
15 – 3100 Ridgeway Drive Mississauga, Ontario L5L 5M5 t. 905-822-0090, 1-833-31-MONIR
f. 905-822-7911 www.monir.ca
Project
DUNBARTON POOL -PICKERING (DECK SURVEY)
Title
BAY 10 REPORT
Page No.: 1 of 1 Issue Date: 24.08.28
Job: 24.M058A
PC-FO-215(L)/Rev. March 18, 2022
Bay 10 Deck Survey Summary
0.000 m
-0.010 m
-0.020 m
-0.030 m
-0.040 m
From [m] To [m] %
-0.041 -0.040 < 0.1
-0.040 -0.030 8.81
-0.030 -0.020 53.14
-0.020 22.40
12.59-0.010
0.000
-0.010
0.000
0.015 3.06
Structural Load Study and Siporex Deck Condition Review for the
PICKERING DUNBARTON POOL
BBA PROJECT 24136
Barry Bryan Associates v | Page
RCJ Engineers’ Roofing Evaluation
Roofing Evaluation
Dunbarton Pool Roof
Pickering, Ontario
September 06, 2024 - DRAFT
RJC No. TOR.139471.0001
Prepared for:
Dennis Yip
Manager, Facilities Capital Projects
Operations Department
City of Pickering
Prepared by:
Read Jones Christoffersen Ltd.
100 University Avenue, North Tower, Suite 400
Toronto ON M5J 2L7
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 1
Table of Contents
EXECUTIVE SUMMARY 2
1.0 INTRODUCTION 3
2.0 BACKGROUND 4
2.1 Building Description 4
2.2 Drawing Review 4
2.3 Interview with Building Personnel 5
3.0 OBSERVATIONS 6
3.1 General Visual Observations 6
3.2 Thermographic Review 6
3.3 Exploratory Openings 7
4.0 CONCLUSION/DISCUSSION 9
5.0 RECOMMENDATIONS & OPINION OF PROBABLE COSTS 10
6.0 CLOSING COMMENTS 13
Appendix A – Photographs
Appendix B – Infrared Thermography Report by IRIS
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 2
EXECUTIVE SUMMARY
Read Jones Christoffersen Ltd. (RJC) was engaged by the City of Pickering to conduct a roof evaluation of the
indoor pool building located at 655 Sheppard Avenue East in the City of Pickering, Ontario.
The building at 655 Sheppard Avenue is surrounded by Whites Road on the east side and by Sheppard Avenue
on the north side. Surface parking is present at the west sides of the building, and a playground is located to
the south. The original facility was constructed in 1971 and was renovated in 2008.
The main building is a two (2) high school building along with an attached indoor pool. The school section
makes up approximately 80% of the building and the remaining 20% is the attached indoor pool section. Roof
Area 1 that forms the scope of this review is located on the main roof above the indoor pool. The main roof
structure generally consists of wooden beams and siporex (lightweight aerated concrete) deck. The main roof
Area 1 measures approximately 700 sq m and the roof assembly appears to be modified bitumen membrane.
The functional service lives of low slope modified bitumen membrane roofing systems is typically in the range
of 20-25 years, provided they are properly designed, installed, and maintained. Given that roof Area 1 was noted
to be installed in 2009, it is approximately 15 years old and nearing its service life. Additionally, issues relating
to the roof slope and excessive ponding were noted from the time of the roof installation in 2009. Roofing
system deficiencies relating to ponding as well as the resulting impacts from sediment and organic growth
can and appears to have accelerate the deterioration of a roofing system, resulting in localized failure.
Based on the document review, observations and information available, Roof Areas 1 appear to be in generally
fair to poor condition and nearing its service life. Localized repair program in short term and wholesale repair
program are recommended to be replaced in the medium term.
The recommendations of this report are summarized in the following table:
Option No. Description Timeline Opinion of Probable Cost
Localized Program
5.1.1 Localized Drain Repair 0-1 Years $60,000.00 (excluding H.S.T.)
5.1.2 Optional: Add localized roof
assembly repairs 0-1 Years $120,000.00 (excluding H.S.T.)
Wholesale Program 5.2 Wholesale Roof System
Replacement 3-5 Years $500,000.00 (excluding H.S.T.)
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 3
1.0 INTRODUCTION
Read Jones Christoffersen Ltd. (RJC) was engaged by the City of Pickering, to conduct a roof
evaluation of the roof area at 655 Sheppard Avenue East in the City of Pickering , Ontario.
A brief description of the scope of the review undertaken by RJC is as follows:
.1 Review of the existing drawings and reports to familiarize ourselves with the design concept,
history, and details.
.2 Visit the main roof areas of the building and perform a visual review of the as-built construction
and conditions.
.3 Review of known problem areas (which may pertain to building roofing membrane failure) as
revealed to us by the building operations staff.
.4 Perform a thermographic scan of the roofing area at the building to identify thermal anomalies
which may indicate concerns with the roofing membrane assembly performance.
.5 Complete cut tests of the respective roof assemblies to determine the current condition of the
roof membranes and hidden roof components (insulation type and thickness, vapour barrier,
etc.).
The date and weather condition at the time of our visit were as follows:
Interview: May 14, 2024 Overcast, 17°C
Thermography study: July 27, 2024
Roof review: August 10, 2024 Sunny, 24°C
Jack Albert, B.A.Sc., M. Eng, P. Eng, CPHD and Chitra Raj Singh Chowhan, M. Eng, EIT performed the
site review for Read Jones Christoffersen (RJC). Roofing cut tests were performed and patched by
Sempel Gooder Roofing Corp.
This report was prepared in accordance with generally accepted engineering practices. No other
warranties, either expressed or implied, are made as to the professional services provided under the
terms of our contract and included in this report.
Services performed and outlined in this report were based, in part, upon visual observations of the
site and attendant structures. Our opinion cannot be extended to portions of the building that were
not reviewed by RJC.
This report is exclusively for the use and benefit of the client identified on the first page of this report
and is not for the use and benefit of, nor may it be relied upon by, any other person or entity. The
contents of this report may not be quoted in whole or in part or distributed to any person or entity
other than the client.
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 4
2.0 BACKGROUN D
2.1 Building Description
The building at 655 Sheppard
Avenue is surrounded by
Whites Road on the east side
and by Sheppard Avenue on the
north side. Surface parking is
present at the west sides of the
building, and a playground is
located to the south. The
original facility was
constructed in 1971 and was
renovated in 2008; additionally,
miscellaneous repairs were
completed in 2015.
The main building is a two (2) storey high school building along with an attached indoor pool. The
school section makes up approximately 80% of the building and the remaining 20% is the attached
indoor pool section. The indoor pool section includes a Swimming Pool, Change Rooms, Family
Bathroom, Mechanical Penthouse, Instructor’s Office, Storage Rooms, and a Lobby. In the basement,
there are additional Change Rooms along with a Conference Room and an Office.
There are three (3) main roofing areas at the
indoor pool section. Roof Area 1 that forms the
scope of this review is located on the main roof
above the indoor pool with a raised roof area.
Additionally, there are lower and penthouse roofs
at the indoor pool section. The main Roof Area 1
structure generally consists of wooden beams
and siporex deck (lightweight aerated concrete).
The main Roof Area 1 measures approximately
700 sq.m. and the roof assembly appears to be
conventional Modified Bitumen Membrane
System (MBM).
(Refer to Photos 1 and 2 in Appendix A)
2.2 Drawing and Documentation Review
.1 Main Roof Framing Plan drawings by T. W. Beddall Architect dated September 1971. Stamped by
R. C. Haiseil.
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 5
This drawing shows the structural plan of the roofs at the indoor pool section of the building.
.2 Pool Interior Elevations & Cross Sections drawings sheet A06 by TSH Architects Ltd dated July
2008. Stamped by B. W. Knoll on September 18. 2008.
This drawing as noted on it forms a part of the Roof Replacement & Renovation Project for
Dunbarton Indoor Pool. The drawing shows masonry repairs and sealant replacement on the
interior walls. The complete set of drawings was not available to gather further information.
.3 Structural Investigation, Report and Review for Pickering Dunbarton Pool by Barry Bryan
Associates dated November 7, 2023
This report outlines the structural composition of the building roof (framing and deck) along with
the construction of the walls and makes recommendations for repairs.
2.3 Interview with Building Personnel
Based on our interview with Mr. Chris Mckean, Building Operator, Mr. Dennis Yip, Manager, Facilities
Capital Projects and Blaine Attwood, the following information was provided:
.1 Mr. Mckean has been working with the City of Pickering for the past 4 years
.2 No current leaks were reported from any of the roofs.
.3 Original roof structure construction circa 1971.
.4 The modified bitumen roofing system on Roof Area 1 was noted to be installed in 2009 as part
of a Re-roofing project. Ponding was noted on the new roof assembly at the time of installation
and structural deflection was noted as a potential cause of the ponding.
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 6
3.0 OBS ERVATIONS
The following observations were made during the visual review of the Roof Area 1 at both the exterior
and interior of the building, as well as the exploratory openings on select locations on the roof.
3.1 General Visual Observations
The following observations were noted on Roof Area 1:
.1 The roof construction was observed to be Modified Bitumen Membrane (MBM). A raised section
(upper section) of the roof is present close to the southwest corner of the Roof Area 1. The upper
section was observed to be roofed in with similar MBM system as Roof Area 1 (Refer to Photos 1
to 3 in Appendix A).
.2 A total of five (6) roof drains were observed on Roof Area 1 at the lower section. Three (3) drains
were observed to be scuppers located on the south parapet of the roof placed approximately
equidistant from each other. The remaining two (2) were observed to be field area drains, located
close to the north parapet of the roof (Refer to Photos 4 and 5 in Appendix A).
.3 One field area drain (east side along the north parapet) on main Roof Area 1 appeared to be
blocked, as water being pumped to the drain appeared not to be draining away (Refer to Photo 4
in Appendix A).
.4 One (1) additional scupper drain was observed at the upper section draining to the lower section
of Roof Area 1 (Refer to Photo 6 in Appendix A).
.5 The roof appeared to have a low slope with the centre line along the roof (east to west) being the
high point and sloping towards the north and south sides. Similarly, the raised roof section
appears to be sloped towards the south side (Refer to Photos 1 and 6 in Appendix A). Crickets do
not appear present along the perimeter based on test cuts.
.6 Water ponding along with debris were observed throughout the roof particularly at the south and
north sides at Roof Area 1 (lower section) and along the south side of the upper section. Drains
do not appear to be located at low spots on the roofs (Refer to Photos 7 to 10 in Appendix A).
.7 Accumulation of vegetation growth were observed in localized areas along the Roof Area 1(lower
section) north, south and west side parapets (Refer to Photos 11 and 12 in Appendix A).
3.2 Thermographic Review
RJC retained InfraRed Imaging Solutions Inc. (IRIS) to perform an infrared thermographic review of
Roof Areas 1 identify any thermal anomalies which may be present. The full report can be found in
Appendix B (attached). The following is a summary of the findings:
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 7
1. Thermal anomalies due to assumed moisture infiltration were detected in three (3) areas on
Roof Area 1:
a. Wet #1: Close to the north side upturn of the raised roof area at Roof Area 1.
b. Wet #2: South side of the raised roof area (upper section).
c. Wet #3: Along the south side parapet of Roof Area 1.
2. No thermal anomalies were detected along the northeast and west side of Roof Area 1.
3. The southwest corner of Roof Area 1 was not assessed due to water present on the roof.
3.3 Exploratory Openings
Five (5) roof cut tests were performed to gain an understanding of the existing roof assemblies and
review areas identified to have anomalies by the thermographic scan. All test Opening locations are
shown in Figure 1. The following is a summary of the findings:
Roof Area 1 (Lower Section)
A total of four (4) test openings were completed on Roof Area 1. Test Opening #1 (Refer to Photos 13
to 15 in Appendix A) and #2 (Refer to Photos 16 and 17 in Appendix A) were performed at the areas
noted as wet on the thermography report (wet #1 and wet #3). Test Opening #3 (Refer to Photos 18
and 19 in Appendix A) was performed at the southwest corner of Roof Area 1 (not reviewed by
thermography). Test Opening #4 (Refer to Photos 20 to 22 in Appendix A) was performed at the
northeast side of the Roof Area 1 where no thermal anomalies were noted..
At the cut test locations, the following components were noted (exterior to interior):
▪ Modified Bitumen Cap Sheet - Torched
▪ Modified Bitumen Cap Sheet - Asphalt Mopped
▪ 2” Fibreboard - Asphalt Mopped
▪ 0”-3” Tapered Polyisocyanurate insulation– Asphalt Mopped
▪ 3.5” Base Polyisocyanurate Insulation– Asphalt Mopped
▪ 0.5” Fibreboard - Asphalt Mopped
▪ 4-ply felt Vapour Barrier –Mopped
▪ 7” Siporex Deck (noted by the structural representative on site)
The membrane appeared to be fully adhered to the fibreboard and in generally fair to good condition,
with good adhesion between the plies at all openings. The fibreboard and insulation were noted to be
wet to the touch at Test Openings #1, #2 and #3. At Test Opening #4, the fiberboard and insulation
were noted to be dry to the touch.
Roof Area 1 (Upper Section)
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 8
One (1) test opening was completed on raised roof area. Test Opening #5 (Refer to Photos 23 to 25 in
Appendix A) was performed at the southeast corner of the raised roof area, within the area identified
as wet in the thermography report (Wet #2). Test Opening areas are shown in Figure 1. At the cut test
location, the following components were noted (exterior to interior):
▪ Modified Bitumen Cap Sheet - Torched
▪ Modified Bitumen Cap Sheet - Asphalt Mopped
▪ 2” Fiber board - Asphalt Mopped
▪ 0”-2” Tapered Polyisocyanurate insulation– Asphalt Mopped (Not visible at cut test)
▪ 3.5” Polyisocyanurate Insulation– Asphalt Mopped
▪ 0.5” Fibreboard - Asphalt Mopped
▪ 4-ply felt Vapour Barrier –Mopped
▪ 7” Siporex Deck (noted by the structural representative on site)
The membrane appeared to be fully adhered to the fibreboard and in generally fair to good condition,
with good adhesion between the plies. The fibreboard, and insulation were noted to be wet to touch.
Figure 1: Test Opening Locations
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 9
4.0 CONCLUSION/DISCUSSION
The Roof Area 1 (upper and lower sections) roof areas at 655 Sheppard Avenue have a conventional
Modified Bitumen Membrane (MBM) roofing system on siporex (lightweight aerated concrete) deck.
The lower main roof section appears to have a low slope with high point through the center of the
roof (east to west) which was noted to be dry and low points appear to be along the north and south
side of the roof where water was noted to be ponding. The upper roof section appeared to have a low
slope with low point along the south side of the upper section.
No mechanical units were observed on the roof. However, two (2) area field drains were observed at
the north side along with three (3) scupper drains along the south parapet. Roof drains appeared to
not be located at the lowest spots on the roof as water was noted to be ponding around the roof
drains. Additionally, one (1) area drain was noted to be blocked as water being pumped to the drain
was not draining. Further, localized areas of vegetative growth were observed along the roof parapets.
Results from the thermographic scan indicated three (3) localized areas of thermal anomalies on Roof
Area 1 (upper and lower sections) where signs of moisture were detected and an additional one (1)
area that could not be reviewed due to standing water; however, no recent leaks to the interior were
reported. The test openings confirmed the findings of the thermography report as insulation was
noted to be wet to touch at area of thermal anomalies and area with no thermal anomalies were noted
to have dry insulation at cut tests. In addition, the area that was not reviewed by thermography due to
ponding was also found to be wet by test cuts. It appears that the roof membrane is experiencing
localized failure as moisture ingress into the roof assembly was noted in the thermography study and
confirmed by the roof test cuts.
The functional service lives of low slope modified bitumen membrane roofing systems is typically in
the range of 20-25 years, provided they are properly designed, installed, and maintained. Given that
roof Area 1 was noted to be installed in 2009, it is approximately 15 years old. Issues relating to the
roof slope and excessive ponding were noted from the time of the roof installation in 2009. Roofing
system deficiencies relating to ponding as well as the resulting impacts from sediment and organic
growth can and appear to have accelerated the deterioration of a roofing system, resulting in localized
failure.
Based on the document review, observations and information available, Roof Areas 1 appears to be
in generally fair to poor condition and nearing the end of its effective service life. Repairs are
recommended to reduce moisture infiltration and ponding.
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 10
5.0 RECOMMENDATIONS & OPINION OF PROBABLE COSTS
5.1 Localized Roof System Repairs
Description of Work:
• Install new drain sumps
• Cleaning/snaking drains
• Optional: Localized roof assembly replacement at known wet areas.
Advantages: Disadvantages:
▪ Lower capital cost than full system
replacement
▪ Reduce ponding levels
▪ Addresses the moisture infiltration issue
into the roofing assembly (Optional)
▪ Not as effective as full replacement
▪ Minimal thermal improvements
▪ Does not rejuvenate the service life of the
roofing system.
Discussion:
In our opinion, this repair provides an effective short-term solution to mitigate ponding issues and
extend the service life of the roof locally. However, this will not improve the thermal performance of the
roof or address moisture infiltration into the roofing system. Areas not repaired will not be improved.
Sump repairs and drain relocation requires modification to the plumbing system to which the roof drains
are attach for field drains. Similarly, repairs to the scupper drain typically require modification to the
down spouts servicing the scuppers and lowering the scupper openings in the walls. The presence of
perimeter beams could interfere with lowering the scuppers or make it infeasible. Further confirmation
of the construction would be required through drawing review or site test openings.
Implementation:
Implementation of this approach is recommended in the short term (0-1 Years)
Opinion of Probable Cost: $60,000.00 (excluding H.S.T.)
**Optional: Replace wet roof areas add cost $60,000.00 (excluding H.S.T.)
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 11
5.2 Wholesale Roof System Replacement
Description of Work:
▪ Wholesale replacement of roof area including all flashings and detail work.
▪ Drain height revision
▪ Revised tapered insulation to address ponding
▪ Drain cleaning/snaking
Advantages: Disadvantages:
▪ Most effective long-term solution
▪ Improve thermal performance of the
roof
▪ Improved sloping and reduced ponding
▪ Addresses areas of concern
▪ Various warranties available for full
assembly in the range of 20-25 years.
▪ Higher capital cost
▪ Greater Impact to site (noise, dust vibrations,
etc.)
▪ Greater potential to impact operations
during work
▪ Longer duration of impact
Discussion:
In our opinion, this option provides an effective long-term solution to address the current performance
issues with each roof. This option also allows for new insulation and sloping to be added to the roofing
assembly to improve the R-value and experienced comfort within the occupied spaces below, and
address ponding.
We understand the repair or replacement of the roof structural deck system is being reviewed by others.
Replacement of the deck as part of the roofing has not been considered here. However, wholesale roof
assembly replacement allows for roof deck replacement as a separate repair program in case it is
warranted.
Implementation:
Implementation of this approach is recommended in the medium term (3-5 Years) or in conjunction
with deck work.
Opinion of Probable Cost: $500,000.00 (excluding H.S.T.)
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 12
Summary
The recommendations of this report are summarized in the following table:
Please note that the options regarding the probable cost of repairs are in 2024 dollars and based upon
the present extent of deterioration, historical unit prices from similar projects and conceptual repair
strategies. Detailing of the various items for each design concept has not been fully developed, nor
have phasing or implementation schemes been selected. Probable costs do not include “soft costs”1,
contingencies, security, merchandise relocation, abatement, testing, extended warranties, permits,
H.S.T or engineering fees. No allowance has been made for escalation beyond this time due to
unknown construction commencement. The opinions of probable costs should be considered Class
“D” amounts1.
1 Class “D” probable costs – an outline description of overall scope sufficient for making investment decisions (degree of accuracy
+/- 25-50%).
Option No. Description Timeline Opinion of Probable Cost
Localized
Program
5.1.1 Localized Drain Repair 0-1 Years $60,000.00 (excluding H.S.T.)
5.1.2 Optional: Add localized
roof assembly repairs 0-1 Years $120,000.00 (excluding H.S.T.)
Wholesale
Program 5.2 Wholesale Roof System
Replacement 3-5 Years $500,000.00 (excluding H.S.T.)
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 13
6.0 CLOSING COMMENTS
Thank you for selecting Read Jones Christoffersen Ltd. for this project. RJC would be pleased to assist you
with the implementation of our recommendations. Should you have any questions or concerns, please do not
hesitate to contact this office.
Yours truly,
READ JONES CHRISTOFFERSEN LTD.
Prepared by: Reviewed by:
Chitra Raj Singh Chowhan, M.Eng., EIT Jack Albert, BASc, MEng, P.Eng., CPHD
Engineering Intern Principal
Building Science and Restoration Building Science and Restoration
Encl. Appendix A – Photographs
Encl. Appendix B – Infrared Thermography Report by IRIS
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 14
Appendix A
Photographs
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 15
Photograph 1: Overview Roof Area 1 facing west
Photograph 2: Overview Roof Area 1 facing east
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 16
Photograph 3: Overview raised roof area near southwest corner of Roof Area 1 (upper section)
Photograph 4: Field Drain near the north side of Roof Area 1 (blocked drain in red)
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 17
Photograph 5: Scupper Drain on the south side of Roof Area 1
Photograph 6: Scupper drain at the south side of raised roof assembly
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 18
Photograph 7: Ponding and debris at north side of Roof Area 1
Photograph 8: Ponding and debris at north side of Roof Area 1
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 19
Photograph 9: Ponding around field drain at Roof Area 1
Photograph 10: Ponding around scupper drain at Roof Area 1 south side
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 20
Photograph 11: Vegetative growth at the west side parapet at Roof Area 1
Photograph 12: Vegetative growth at the south side parapet (east corner) at Roof Area 1
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 21
Photograph 13: Overview Test Opening #1
Photograph 14: Roof assembly at Test Opening #1
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 22
Photograph 15: Roof assembly at Test Opening #1
Photograph 16: Roof assembly at Test Opening #2
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 23
Photograph 17: Siporex deck at Test Opening #2
Photograph 18: Overview Test Opening #3
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 24
Photograph 19: Roof assembly at Test Opening #3
Photograph 20: Overview Test Opening #4
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 25
Photograph 21: Roof assembly at Test Opening #4
Photograph 22: Tapered insulation at Test Opening #4
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 26
Photograph 23: Overview Test Opening #5
Photograph 24: Roof assembly at Test Opening #5
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 27
Photograph 25: Roof assembly at Test Opening #5
Dunbarton Pool Roof
Roofing Evaluation
Pickering, Ontario
September 06, 2024 - DRAFT RJC No. TOR.139471.0001
Page 28
Appendix B
Infrared Thermography Report by IRIS
2024
Roof Inspection using
Infrared Thermography
Reporter: Tere Almanza
July 27, 2024
DUNBARTON INDOOR POOL
[655 SHEPPARD AVENUE EAST, PICKERING, ON. ]
IRIS – Brian Jastrow, Level III Thermographer
Roof Inspection using Infrared Thermography
P a g e | 1
We were contracted to perform a non-destructive infrared thermography scan on the roofing assembly at
Dunbarton Indoor Pool – 655 Sheppard Avenue East, Pickering, ON. on July 27, 2024.
The purpose of the inspection was to identify any thermal patterns and temperatures that may indicate roof
assembly wear or failure. This was done by utilizing the “FLIR” T865 handheld thermal imaging system and
TRAMEX non-invasive moisture meter.
Infrared inspections are used to locate areas in need of maintenance. These anomalies can be located with
infrared imaging systems because of their increased or decreased temperature. All objects emit infrared
radiation, so simply identifying a “thermal variance” does not mean a problem has been located. Once
evaluation against a normal thermal signature is done, any deviation from this signature will then provide
evidence of a “thermal anomaly” developing. Lastly, all findings will be confirmed by our professional moisture
meter.
Moisture attack represents one of the chief threats to the proper performance of flat roofs. Dripping often
provides the first indication that water has entered the roof system of a building, either in the form of water
vapor from inside or as leakage water resulting from failure of the roofing membrane. In some cases, the roof
may remain wet without causing interior problems; if there is an effective vapor retarder the water may be
trapped within the roof components. In this case its effect will not be so obvious, but it will cause an increase
in the rate of heat transfer and may contribute to the eventual destruction of the roofing system.
Factors such as environmental fluctuations make it impossible to accurately predict when an anomaly will
result in a system failure. The report is limited to the size and extent of inspection conducted and as such is
not meant to be a warranty nor guarantee. It does not relieve concerned parties from their obligation.
Roof Inspection using Infrared Thermography
P a g e | 2
Roof Inspection using Infrared Thermography
P a g e | 3
ROOF PLAN
(For illustration purpose only – sizes and locations are all estimate)
IR 0144
DC 0132
IR 0146
DC 0134
IR 0145
DC 0133
IR 0153
DC 0141
IR 0148
DC 0136
IR 0147
DC 0135
IR 0151
DC 0139
IR 0149
DC 0137 IR 0150
DC 0138
IR 0152
DC 0140
IR 0154
DC 0143
DC 0142
IR 0156
Roof Inspection using Infrared Thermography
P a g e | 4
FAULT #1 (A)
PRIORITY LOCATION EQUIPMENT
High Upper Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0155.jpg
Max. Temperature 28.3 °C
Min. Temperature 14.6 °C
Thermal anomaly detected within membrane due to
moisture infiltration (100% saturation).
Wet area #1 covers a section of approximately 48’ X 18’.
IR findings were verified by professional TRAMEX moisture meter
and marked by orange spray paint.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 5
FAULT #1 (B)
PRIORITY LOCATION EQUIPMENT
High Upper Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0156.jpg
Max. Temperature 28.2 °C
Min. Temperature 15.5 °C
Thermal anomaly detected within membrane due to
moisture infiltration (100% saturation).
Wet area #1 covers a section of approximately 48’ X 18’.
IR findings were verified by professional TRAMEX moisture meter
and marked by orange spray paint.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 6
FAULT #2
PRIORITY LOCATION EQUIPMENT
High Ultra High Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0154.jpg
Max. Temperature 27.2 °C
Min. Temperature 15.9 °C
Thermal anomaly detected within membrane due to moisture
infiltration (100% saturation).
Wet area #2 covers a section of approximately 30’ X 14’.
IR findings were verified by professional TRAMEX moisture meter
and marked by orange spray paint.
Refer to Picture Index on page 3 for the approx. location
Roof Inspection using Infrared Thermography
P a g e | 7
FAULT #3
PRIORITY LOCATION EQUIPMENT
Medium Upper Roof South Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0157.jpg
Max. Temperature 30.2 °C
Min. Temperature 11.2 °C
Thermal anomaly detected within membrane due to
moisture infiltration (100% saturation).
Wet area #3 covers a section of approximately 12’ X 3’.
IR findings were verified by professional TRAMEX moisture meter
and marked by orange spray paint.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 8
FAULT #4
PRIORITY LOCATION EQUIPMENT
Medium Lower Roof East Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0145.jpg
Max. Temperature 34.7 °C
Min. Temperature 3.5 °C
Thermal anomaly detected within membrane due to
moisture infiltration (100% saturation).
Wet area #3 covers a section of approximately 21’ X 12’.
IR findings were verified by professional TRAMEX moisture meter
and marked by orange spray paint.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 9
REFERENCE #1
PRIORITY LOCATION EQUIPMENT
None Ultra Lower Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0144.jpg
Max. Temperature 35.9 °C
Min. Temperature 19.1 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location
Roof Inspection using Infrared Thermography
P a g e | 10
REFERENCE #2
PRIORITY LOCATION EQUIPMENT
None Lower Roof East Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0146.jpg
Max. Temperature 35.8 °C
Min. Temperature -6.1 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 11
REFERENCE #3
PRIORITY LOCATION EQUIPMENT
None Lower Roof West Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0147.jpg
Max. Temperature 29.4 °C
Min. Temperature 16.1 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 12
REFERENCE #4
PRIORITY LOCATION EQUIPMENT
None Lower Roof West Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0148.jpg
Max. Temperature 29.4 °C
Min. Temperature 15.6 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 13
REFERENCE #5
PRIORITY LOCATION EQUIPMENT
None Upper Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0149.jpg
Max. Temperature 30.7 °C
Min. Temperature 15.9 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 14
REFERENCE #6
PRIORITY LOCATION EQUIPMENT
None Upper Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0150.jpg
Max. Temperature 32.5 °C
Min. Temperature 15.8 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 15
REFERENCE #7
PRIORITY LOCATION EQUIPMENT
None Upper Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0151.jpg
Max. Temperature 30.9 °C
Min. Temperature 15.2 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 16
REFERENCE #8
PRIORITY LOCATION EQUIPMENT
None Upper Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0152.jpg
Max. Temperature 27.7 °C
Min. Temperature 15.2 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 17
REFERENCE #9
PRIORITY LOCATION EQUIPMENT
None Upper Roof Section MOD-BIT Roofing System
PARAMETERS ANALYSIS
File Name 2024-07-27
FLIR0153.jpg
Max. Temperature 33.6 °C
Min. Temperature -15.4 °C
No thermal anomalies observed on MOD–BIT membrane due to
moisture infiltration.
I.R. Finding verified by professional TRAMEX moisture meter.
Refer to Picture Index on page 3 for the approx. location.
Roof Inspection using Infrared Thermography
P a g e | 18
NOTE
ANALISIS:
Unable to thermally inspect area because IRIS moved all sitting water/debris that morning in to this area.
No drains on South section of Upper Roof. (DC photo 0142)
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