Flat Roof Leaking At Flashing

The best way to.

Flat roof leaking at flashing.

Metal flashing that runs alongside a wall loosens up or the caulking gives and a major leak starts. 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. Install a gutter flashing between the gutter and the roof sheeting. Flashing is the number one cause of leaks on flat roofs.

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. This flashing rests on the front edge of the lowest batten with a squash fold to direct any possible. Flashing just like most other materials asphalt flat roofs tend to expand and contract with changing weather and temperatures. Just make sure you leave enough room for gutter maintenance.

Metal flashing copper bend at a 90 degree angle making the transition between the roof and chimney. This video demonstrates where flashing could be leaking from on a brick wall. 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. It is the first place to troubleshoot for leaks on a roof.

The minimum standard is 50mm.