Upon our initial inspection we concluded the existing tar and gravel roof was definitely in need of replacing and suggested to our client the more efficient two-ply modified bitumen flat roofing system. As can be seen from the photos, the skylights were also in need of replacing as the client was experiencing some leakage around the skylight area. It is possible that the leakage was due to a leaking skylight which explains the caulking on the skylight or due to the deterioration of the tar and gravel around the skylight area. Given the condition of the skylights and the additional costs of installing the skylights on a future visit, both clients decided to have the skylights changed. However, the single large skylight on the rear flat roof was still in good condition and only required the installation of new weather stripping.
It was also necessary that one of our clients have the asphalt shingles replaced on the sloped section because there were several key problems. At the edge of the roof the shingles were cut in line with the roof which results in water running down onto the side board and under the shingles which the water marks on the plywood confirmed. Also the sloped chimney flashing was exhaustively caulked which indicates repairs to a leakage problem. Finally, the contractor installing the skylights did not align the shingles properly as the keys on the three tab shingle were not aligned. This is a key installation error of these shingles. Given the many problems in the small area the client decided to have the entire area re-roofed.
There were also some minor repairs to a leaking sloped chimney flashing on the other clients roof which I had mentioned in a previous blog article. We completed the job by finishing all metal work including all new parapet caps, wall flashings, door step flashing and chimney flashing. Please view the image gallery to see the before and after photos of our project.
