Flat Roof Leaking At Flashing

This video demonstrates where flashing could be leaking from on a brick wall.

Flat roof leaking at flashing.

On a flat roof we suggest starting at 100mm of overhang. Over time this continued expansion and contraction can cause the flashing to pull away from the edges and corners of your roof leading to leaks and moisture that can get trapped inside your roof. Install a gutter flashing between the gutter and the roof sheeting. Metal flashing that runs alongside a wall loosens up or the caulking gives and a major leak starts.

The minimum standard is 50mm. If you can aim for 150mm. The other issue is if the installer nailed the shingles through the flashing then those nails could start rusting and cause a skylight to leak. It is the first place to troubleshoot for leaks on a roof.

The best way to. On a shingle roof the flashing will get clogged with debris and in turn the water will get diverted under the shingles where it could start leaking. Just make sure you leave enough room for gutter maintenance. Flashing is the number one cause of leaks on flat roofs.

This flashing rests on the front edge of the lowest batten with a squash fold to direct any possible.