Toronto flat roof balcony, deck, rafters repair Part 1

2010-08-30T02:28:08Z

Last week M&R Roofing began another flat roof balconies repair project. It included carpentry work such as the installation of new roof rafters and deck, followed by the installation of our two ply modified flat roofing system with polyiso insulation in the Beaches, Toronto.

When our sales consultant Maciej arrived to view the job, our distraught client has already removed the drywall from the ceiling so that Maciej could see the extent of the damage caused by the leaking balconies. The damage was extensive and would require the removal of the entire existing roof materials, roof decking and much of the roof framing. After viewing our video of a similar balcony repair we had done and discussing all matters with Maciej, with confidence our client decided to employ the services of M&R Roofing.

When our employees arrived on the job site to repair the roof they were surprised to see a sandwich of roofing materials lying on the roof deck. The roof deck was covered with four layers of plywood, one layer of green turf carpeting, one layer of asphalt and two layers of rubber membrane! Even with all these layers the roof deck leaked to such a point that all the plywoods and many of the rafters were rotten. Also, contributing to the water and moisture was a serious case of condensation. We began by stripping the entire roof deck which was a heavily labour intensive and then installing all new wooden rafters with hangers. When the framing carpentry was finished on one of the balconies we installed new decking and rafters in such a manner as to create the appropriate slope for drainage of the balcony roof, as discussed in a previous blog entry. We then installed our usual two ply modified flat roofing system with 1.5 inch polyiso insulation using a 180 base SBS membrane and 250 SBS cap membrane.

The above video contains part of the work that went into the project. A second video will follow showcasing further progress of the project. Below is a photo gallery of the project.

Flat roof Toronto balcony repair. Roofing Toronto

2010-06-30T16:27:40Z

Last week M&R Roofing completed a flat roof balcony repair in Toronto where we installed our two ply modified bitumen flat roofing system with polyiso roof insulation and built a new balcony railing.

Our client's home featured a balcony accessible from the dormer walkout on the front slope of the house. This house design is typical in western East York neighbourhoods. Many of the homes have balconies that are leaking and are rotten. The railings, decks and even rafters under the decks are rotten because the balconies are covered with subpar materials. Since the balcony is exposed to the outdoors it should be waterproofed with some type of flat roofing system. Specifically one that inludes some form of insulation as the balcony area is above a warm area of the house and should be insulated to prevent condensation problems. Previously the balcony was covered with welded galvanized metal. Metal is not a good solution for this sort of flat roof area because with time the welds will begin to crack and the metal will begin to move around. Metal also causes condensation as the warm air from the house meets the cold metal surface. To prevent condensation issues we installed 1.5 inch polyiso insulation. We also disassembled the side wood walls and the door step in order to run the rubber membrane up onto the walls and under the door step. We then flashed the area with black metal flashing and caulked it appropriately. After installing the new flat roof we built and installed a new wood railing on the balcony. The new railing is built according to code standards which makes it sturdy and accessible for the client. The client can now confidently choose to install some form of decking to her liking over the flat roofing system.

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Toronto flat roof balcony, deck, rafters repair Part 1

Flat roof Toronto balcony repair. Roofing Toronto