Liquid Rubber Roof Repair, September 2015, Sherwood Park

This client's flat, metal roof required some patch work with liquid rubber. GRS sent out one of its technicians to carry out the quick repairs over the course of a few hours one day.   Roof Report: September 29, 2015 The three technicians began their day at 7:30, travelling to the garage to retrieve a trailer and some materials. Once loaded, they went out to the client's location and arrived around 10:15am. The technicians inspected the leak and subsequent water damage on the roof and loaded the work area with brushes and liquid rubber that would be suitable to this type of repair. They applied meshing to the expansion joint (approximately 25' long) and began applying liquid rubber to the new seam. Unfortunately, some rain rolling in hindered progress, but the crew took an early lunch and waited for the sun to break back out and help dry up the work area. All said and done, the crew was able to finish up the liquid rubber application by 2:00pm and depart the client's site without any problems arising to necessitate their return.  
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Parts of this metal roof had experienced rusting and old patchwork that required replacement.
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Coatings that had originally been applied over the seams also had to be scraped off and replaced.
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New liquid rubber coatings were applied around all rooftop appliances after removing the old ones.
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Old acrylic coatings around this gas appliance was beginning to crack at the base.
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New coatings around the base of a gas appliance.
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More exposed seams on the perimeter.
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New coatings were applied around the wall connections and all penetrations, extending down to the drip flashing.
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The old coatings around this skylight had cracked and exposed penetrations in the fixture through which water had been leaking.
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We applied new coatings over the cracked ones and sealed in the cracks that had formed in the fixture.
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Significant rusting and cracked coatings around a vent unit. The rust had "grown" into the unit itself.
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New coatings around the vent unit. The "blistering" is the rust that still remains.
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Liquid rubber coatings over the main seam running the length of the metal roof.
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Some of the screws were exposed, which we later sealed in. This particular coating was addressing an exposed pocket between the drip flashing and the roof.
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We also applied new coatings at the base of this chimney to seal in and waterproof its penetrations.
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Closeup of the new coatings at the base of the chimney, applied at the base of the step flashing and around the drip flashing.
    CODE: 1108 Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Sherwood Park Commercial Roof Liquid Rubber Installation, September 2012

This commercial client required a liquid rubber installation to prevent further moisture from entering the building. An acrylic top coat was also to be applied over the liquid rubber installation. Inspection: Very difficult to pinpoint where the moisture is entering, however it appears to coming in at a number of areas. The metal roofing has a number of maintenance and sheet metal issues but the inherent expansion and contraction also likely causes issue. This roof leaks after the snow melts and heavy rainfalls. Roof is approximately 25 years old, could use a metal roof replacement but the Engineered Liquid Rubber coating will stop the roof from leaking for many years. Project Manager Notes:
This roof structure is a candidate for either a repair-maintenance program or an engineered coating and does not have to be replaced. I would not recommend an elastomeric coating or the SPF Spray Foam as the acrylic and EPDM covering options do not last well in Calgary climate, but liquid rubber performs well in our climate. Generally speaking, metal roof systems are constant aggravating roof structures. Industrial metal roof systems have a deficient design - they are water-shedding and not water-proofing coverings. Metal expands and contracts more than any other roofing material. Metal roofs tend to leak from expansion and contraction and ice / snow loads. Leaks are intermittent at seams, penetrations (stacks, etc.), fasteners (fastener holes get larger with expansion and contraction), around the perimeter as ice back-ups at gutters and then under eave, and at joints between roof and wall connections. Metal rust / corrosion may start at places, the seams and fasteners are vulnerable from expansion / contraction and snow loads, and any traditional caulking or coating won’t last more than a few seasons at best. Remedies are either spot repairs-maintenance with caulking or more extensive maintenance which involves engineered coatings. Our recommendation is a high end engineered liquid rubber polymer coating that carries a 10 Year Manufacturer Warranty and has option for maintenance contracts for extended warranty. General Roofing is considered a pioneer and leader in engineered roof coatings; (www.liquidrubber.ca, https://www.grscanadainc.com/Roof_Coatings.html, https://www.grscanadainc.com/Liquid_Rubber.html). We have significant liquid rubber operations specifically serving industrial facilities with low slope metal roofs. Our clients include companies such as Imperial Oil, Shell Oil, Telus, Fortis, Toran Power, National Oil Well Varco (NOV), Teck Resources, and many more. (https://www.grscanadainc.com/Project_Portfolio.html). In this instance, we recommend a 2 Ply System engineered liquid rubber coat to complete metal roofing, fastener replacement as required, sheet metal repair as required to-achieve a water-tight state. Typically this is even more successful than a full metal roof replacement. A recent project with photos can be found at; http://generalroofingsystemscanadainc.blogspot.ca/2012/05/roof-repair-liquid-rubber-metal-roof.html
1 2 Tomorrow we are ready to spray acrylic and will complete the scope (weather pending). The trailer is being left on site as it is a secure lot, temperature will be going down to zero tonight so all combustibles have been removed from trailer and a heater placed inside to maintain temperature of LR.
  • Pressure washed roof.
  • Poly'd enter building and tarped the trailer.
  • Applied 2 coats of Metal Safe LR to roof.
Strathcona County-20120915-00154 Strathcona County-20120915-00155 Strathcona County-20120915-00157Strathcona County-20120915-00159 Strathcona County-20120915-00161 Strathcona County-20120915-00162 We struggled to get a constant spray going but the gun would only spray for a maximum of one minute at a time. We did all the troubleshooting in the book to no avail. I am thinking the acrylic is to thick for a standard paint sprayer. In short we are going to have to find another solution to apply this acrylic. I will have to call him (another crew member) tomorrow and ask him specifically which type of gun and nozzle he uses.
Approximately 6 hrs for two guys work remains if we can get a sprayer that actually works without getting clogged.
  • Re-applied poly that had partially come down.
  • Cleaned out trough of all mud from pressure washing.
  • Rinsed all salt off of the surface of the LR.
  • Began spraying acrylic.
  • Applied one coat of acrylic to 25% of roof.
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< End Report > CODE: 2260 Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Sherwood Park Residential Roof Leak Warranty Repair, May 2012

The GRS team installed an EPDM roof for this client the previous year. The client informed that there was water coming through a vent in the washroom and requested a warranty service repair. This is a follow-up report for a project completed the previous year. You can find the original article here. The following email was sent by our project manager to the crew member who would be attending the warranty repair call:
Good morning, We installed this EPDM overlay for the client last fall. It was a good install. My thinking is that it is condensation as he has an original home and it was having condensation issues last fall when we did the install also. If it is condensation, you may want to design a roof vent lay-out for him to get the roof venting. The important part is to be sure that there is at least one vent for each air space and you have some form of soffit intake. He is doing his siding also, and with his roof and soffit overhang design we may have to drill holes in the side of the vertical. HOWEVER, if there is no intake and we would have to start that process, he would require a Building Envelope consultant to draft a scope of work for us to follow. If it is only adding roof vents and not drilling holes in to his vertical outside wall then there is no need for a consultant. It could just be a leak too, but I doubt it. He may have shoveled a rip in the EPDM also, who knows. Also of note, with all his other remediation (mold, siding, etc) you never know what's been done. If it looks like we are going to be adding a number of vents, then we may not want to charge him for this service (assuming the leak isn't our fault) and just make it back up on the vent installs. If we are quoting vents etc, that quote would come from me based on our inspection. Thanks
Roof Report, March 20, 2012:
We arrived on site and met the owner, he said his wife noticed a leak in the bathroom ceiling fan late the week prior.  When we inspected the area suspected, we found 5” to 6” of ice around the protrusion (bathroom ceiling fan) and along the entire parapet wall. As to not do further damage to the EPDM membrane by removing the ice, we decided not to shovel away the ice and snow.  However we tried lifting the edges of the ice to remove what we could. This did not make enough difference to do a repair if needed. While doing this, we did notice that we could lift the cap off the bathroom fan vent. After doing this we noticed water pooled on the membrane over the insulation. We removed the wet insulation and packed it with dry insulation that the client had on hand, nailed and caulked the membrane in to place, and caulked the inside as well as the outside of the cap itself. We also caulked the neighbouring cap even though there was no suspected leak from it. The customer did mention during conversation that we are supposed to conduct a moisture test some time this summer.
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(this client needed a final repair done two years after the warranty service). This roof is in good shape. Seam tape and seam sealants are in place on all laps and detail. However the roof is missing parapet metal caps. Some of the membrane is temporary held down by clamps but can still allow water to enter the system. One of the seven scuppers has a patch that is fish mouthing which is enabling leaks. All other scuppers were sealed. The leak in question above the bathroom was a rip in the membrane beside the plumbing stack. Reason for the rip looks like an ice pick may have penetrated membrane. Membrane ripped below window metal flashing in corner joining into parapet.
 Roof Report, March 16, 2014:
  • Repaired 1 rip beside plumbing stack.
  • Repaired 1 patch fishmouthing beside scupper.
  • Repaired one rip on wall under a window joining to parapets.
  • All repairs were achieved using weathered membrane cleaner to remove dirt and dust etc.
  • Primer/ep95/ patch installed then sealed with EPDM seam sealant.
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 < End Report > CODE: 51369 Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.

Sherwood Park Residential Flat Roof Replacement, August 2011

This client indicated that he would like to stay in his current home for the rest of his life. As such he required a full roof replacement that would last well into the future. There are some re-occurring water leak issues with his current roof and his insurance company will not fix the interior damage until the roof is replaced. Initial state of the rooftop:
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Roof Report, August 3, 2011:
The garage area was prepped along with the eastern side of the house. The vent area was sealed and water proofed. SAMSUNG SAMSUNG SAMSUNG SAMSUNG SAMSUNG Roof Report, August 4th, 2011: The entire garage roof was prepped and made ready for application of EPDM. Then EPDM was applied to just over half of the garage roof. The second half of the garage roof was covered so as to protect from water in the event of rain. DSCF0131 DSCF0132
Roof Report, August 8th, 2011: The 4 scuppers on the east roof of the house were installed today and all of the scuppers were recessed. Material was completely laid on the west side of the house.
The east roof of the house  was made ready for installation of product for tomorrow morning. Client returned home today and seemed pleased with work that had already been done. We would like to inquire as to whether or not there are (2) 20 ft. downspouts and 2 elbows on the work order to be installed with the 2 new scuppers that were added to the house. If so I will need to purchase these tomorrow morning.
DSCF0180 DSCF0181 DSCF0182 DSCF0183 DSCF0184 DSCF0185 DSCF0186 DSCF0187 DSCF0188 DSCF0189 DSCF0190 DSCF0191 Roof Report, August 9th, 2011:
East roof of main house material was laid down today. Curbing and patchwork on west roof's vents were also completed. EPDM was not completely laid going up the walls on the east roof. As of 2:45pm the temperature of the EPDM on the east roof (taken with heat gun) was between 165F and 173F.
Downspouts will be picked up tomorrow morning, and the remainder of the east roof along with any touch ups or detail work will be completed during the day. Barring any unforeseen circumstances this part of the job will be finished by end of day tomorrow.
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Roof Report, September 21, 2011: We began the removal of the scuppers from the house. Once the rest of the crew arrived on site we assisted in the temporary sealing of the scuppers. Counter flashing was installed to help mitigate further leak risk. Caulking was done around the counter flashing and scuppers were temporarily sealed.
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 As this location had several different scopes of work completed (at different times), a subsequent article was made. You can access it by clicking here. < End Report >
CODE: 51369 Contact Us Call our 24 hour emergency roof repair at 1.780.424.7663. Mail to: 3428 99 Street NW Edmonton, Alberta T6E-5X5. We service all of Alberta including Edmonton, Stony Plain, Spruce Grove, Fort Saskatchewan, St Albert, Sherwood Park, Leduc, Nisku, Beaumont, Lac La Biche, Grande Prairie, High Level, Westlock, Slave Lake, Edson, Drayton Valley, Devon, Camrose, Wetaskiwin, Tofield, Lamont, Morinville, Vegreville, Tofield, Millet, Calmar, Evansburg, Redwater, Onaway, Viking, Athabasca, High Prairie, Valleyview, Fairview, Peace River, Whitecourt, Mayerthorpe and many more rural areas and towns.