Flat Roof Leaking At Flashing

Install a gutter flashing between the gutter and the roof sheeting.

Flat roof leaking at flashing.

On a flat roof we suggest starting at 100mm of overhang. Just make sure you leave enough room for gutter maintenance. 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. 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.

Flashing just like most other materials asphalt flat roofs tend to expand and contract with changing weather and temperatures. The minimum standard is 50mm. Metal flashing that runs alongside a wall loosens up or the caulking gives and a major leak starts. Metal flashing copper bend at a 90 degree angle making the transition between the roof and chimney.

The best way to. This video demonstrates where flashing could be leaking from on a brick wall. It is the first place to troubleshoot for leaks on a roof. 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.

Flashing on a wall above a flat roof.