Canada Games Centre Roof Investigation...Notes: 1. Extensive areas of the roof membrane connection...

Canada Games Centre Roof Investigation Leaks investigation 5/24/2017

Eagle Project Management Inc

Peter Smith

Canada Games Centre Roof Investigation

Eagle Project Management

Eagle Project Management Inc. was contracted by Halifax Corporate Facilities Design & Construction to

conduct a roof investigation of this property. Investigations were completed in October and November

2016 and again in May 2017. This report is based on the latest findings of May 15, 2017.

The key areas of concern identified are:

1. Leak over main pool area

2. Leak over walking track- southeast corner

3. Leak on east face of solarium penetrating into fitness centre

Historic records presented by Halifax

1. Mainland Common Centre drawings A1.03 and A5.10 as primary references

2. Roof-Chek IR scan dated August 25,2016

3. Soprema Canada materials applied as noted on expired warranty

a. Base sheet- Elastophene 180 PS

b. Cap sheet- Soprastar HD GR

c. Base sheet flashing- Soprastar

d. Cap sheet flashing- Soprastar

e. Air barrier- Sopraseal 60 F/F

.

Refer to drawing A1.03 for identification points within this report.

Points of concern

1. Roof drains (RD)

a. Section A grid V5 (RD-1)

b. Section A grid V8 (RD-2)

c. Section A grid R5 (RD-3)

d. Section B grid R12 (RD-4)

Typical roof drain



Typical failure of membrane at roof drain

Notes:

a. The roof drains located on the solarium roof A have failed in particular at section V5

over the pool area. The thermal scan revealed water saturation under the

membrane as approximately 40 feet by 40 feet area.

b. The membrane at the drain assembly has visibly failed and noted in the attached

photo (V5 and R5 drains)

c. Other roof drains noted require similar repairs

a. V5- 40’ x 40’ water saturated area

b. V8- 25’ x 20’ water saturated area

c. R5- 20’ x 50’ water saturated area

d. R12 – 12’ x 12’ water saturated area

d. While walking on the roof system you can clearly hear the water saturation

movement and the “sponge” affect of the wet insulation.

e. These areas should be addressed with roofing product removal; re-secure/secure

vapour barrier and roof drain connections, install new insulation and cap sheets.

2. Solar panel structural stands

a. Located on roof area A and tagged point # 11



Solar pipe systems and structural supports

Solar system structural support seal failure- typical condition

Decayed solar pipe system support at vertical connection



Notes

1. The majority of the roof connections to structure support systems have failed with a

high probability of water migration into the roofing systems. Semi annual

maintenance is required on these anchor points.

2. The solar pipe support systems which are welded to the vertical structural supports,

have failed in several locations. Suggest replacing the clamp system with a corrosion

resistant clamp- stainless steel or equivalent.

3. Solar and HVAC supply and return lines- support stands

a. Located on roof area A and tagged as point # 5 (solar systems)

b. Located on roof area B and tagged as point # 4 (HVAC piping systems)

Typical pipe support stand- roof cap sheet puncture



Pipe support system at HVAC point # 4- roof membrane deflection

Notes:

1. The pipe support system appears to have been installed after the roof membrane.

They are not supported to the structural decking. Typically the roofing system will

contain torch in “sleepers or curbs” to support the structural load of these piping

systems transferring the load to the main structural framework.

2. The roofing system is deflecting and roof failure points are evident (see photo).

3. Repair- temporarily support the pipe system, remove the existing support block, cut

and adhere a structural support below the roof membrane, install new double layer

roof membrane, reinstall the pipe supports- 20 locations



4. Solarium

a. Located on roof area B and tagged as point # 7

Solarium- photo taken looking west

Solarium roof seal failure- east face

Notes:

1. The roof membrane is not adhered to the vertical curb walls of the solarium system.

Evidence of several water penetration points is visual (see photo).

2. Repairs will be extensive as the solarium structure is supported on the curb

structure, the roof membrane wraps up and over the curb and the roof membrane

is not secured to the curb to stop water penetration. The east face roof membrane

does not extend up the curb supporting the solarium.



5. Wall flashings


Roof membrane not sealed to wall curb

Notes:

1. Extensive areas of the roof membrane connection to the wall curb areas have failed.

The roof membrane is not adhered to the roof/wall curb. The original design details,

noted on drawing A5.10, indicate a torch on base sheet and cap sheet to the wall

curb. The wall design includes a “blue skin or equal” product behind the

architectural metal. These areas frequently contain high levels of snow and are

subject to water penetration with poor roof membrane adhesion.

6. Ventilation exhaust


Roof membrane not properly sealed at ventilation

Notes:

1. Poorly installed, cap sheet does not extend to ventilation “neck”

7. Roof access ladders

a. Located on roof area C and tagged as point # 10 (3 ladders)



Notes

1. There are 3 primary ladders located on the roofing systems. 2 ladders extend from

roof B and one ladder extends from roof D

2. Repairs: add additional cap sheet ply at the pedestrian on/off points of the ladders

as the roof cap sheet is being damaged by foot traffic.

8. Solar return system lower roof- east side

a. Located on roof area D and tagged as point # 6

b. 12 prefabricated ventilators on roof

Notes

1. During visual review of the solar systems the anchor bolts are not sealed nor are the

structural supports.

2. Repair requires removal of the solar system metal panels, seal all anchor points, and

reinstall solar systems. These systems are bolted together.

9. Additional works

a. Remove excess roof granular and foreign growth materials on roof area B

Report prepared by P. Smith, RPA PMP

Eagle Project Management Inc.

Canada Games Centre Roof Investigation...Notes: 1. Extensive areas of the roof membrane connection...

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