Flat Roof Drain Installation and Repair, Edmonton, 2010-2011

This client sought GRS' assistance in alleviating leak and ponding problems on their tar and gravel roof. The first visit made out to their location had us install a new drain, and the second visit (the following year) had several vents and roof penetrations re-sealed to stave off water ingress.   Quotation Delivered: September 10, 2010 The GRS Project Manager sent over the quotation that the client requested, covering the roof drain installation and surrounding area patch. The job itself was scheduled to be a quick install, to be completed on a single visit to the site sometime during the following week as time provided. Roof Report: September 16, 2010 The GRS technicians arrived on site for 11:30am and met with the client regarding the roof drain and low spot that required attention. Once they'd assessed the site, it was decided that the repair would proceed on this day so the pair drove to the local shop to pick up the necessary supplies and materials. They returned an hour later and went up to the roof, beginning the repair on the drain. The job itself only took two hours, so they departed at 4:30pm for the day.
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The drain repair entailed applying a new liquid rubber patch over the deficient sections. We found some holesĀ in the membrane surrounding the drain itself, as well as old sealant which was cracking.
exposed tar and gravel roof
Next, we moved some gravel to exposed sections of the roof which we suspected were leak entry points. We found some minor tears and holes in the membrane and spudded over them.
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After affixing the drain back into place, we put a mesh over the coatings and then sprayed primer around the drain.
Quotation Request & Delivery: June 20, 2011 GRS received another phone call from this client about a leak coming through the roof. This time, they sought the replacement of two plumbing vents and two gooseneck vents. As the current roof is tar and gravel, the repairs can be done with a torch-on system. We sent over the quotation for the work to be completed and scheduled them in with the roofing crews.. Roof Report: July 29, 2011 The crew returned to the client's site an hour after a heavy storm hadĀ subsided. They spent a little bit under an hour and a half on-site before getting rained out once again. Regrettably, they were unable to fix the root problem and would have to return when next possible. Roof Report: August 7, 2011 After the previous week's delays, the pair of technicians arrived on location for 7:00am, completing the safety documents and beginning the day's preparations for torch-on repairs. They picked up some more supplies once the store opened, and got to torching on the repair patches at 10:20am. By the time 12:30pm rolled around, the repairs were completed and the team had to remain on fire watch duty for the prescribed hour before the site could be safely departed. Without any issues presenting themselves, the crew packed up the site and left the job site a completed project.  
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There was significant standing water around this cluster of rooftop appliances. The client wanted their vents replaced, although we recommended replacing a section using torch-on.
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Our first step was to drain the water around each of the appliances.
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We began by torching down some rubber around the plumbing boots, and then applying coatings over the seams.
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The process was repeated for all appliances along the roof edge.
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Next, the ventilation units were addressed.
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The main cluster of appliances where we found the standing water required custom strippings fit around them before they were torched down.
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Closeup of the newly torched-on membrane around the rooftop appliances.
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Finally, we applied new ballasts around the completed torching.
  < End Report > CODE: 13015 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.

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