Flat Roof Leaking At Flashing

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.

Flat roof leaking at flashing.

The best way to. 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. Install a gutter flashing between the gutter and the roof sheeting.

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. Metal flashing copper bend at a 90 degree angle making the transition between the roof and chimney. Flashing is the number one cause of leaks on flat roofs. Flashing just like most other materials asphalt flat roofs tend to expand and contract with changing weather and temperatures.

Metal flashing that runs alongside a wall loosens up or the caulking gives and a major leak starts. This video demonstrates where flashing could be leaking from on a brick wall. The minimum standard is 50mm. If you can aim for 150mm.

Flashing on a wall above a flat roof.