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.
