Flat Roof Leaking At Flashing

It is the first place to troubleshoot for leaks on a roof.

Flat roof leaking at flashing.

The minimum standard is 50mm. Just make sure you leave enough room for gutter maintenance. The best way to. If you can aim for 150mm.

Metal flashing that runs alongside a wall loosens up or the caulking gives and a major leak starts. On a flat roof we suggest starting at 100mm of overhang. 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.

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. Flashing is the number one cause of leaks on flat roofs. Install a gutter flashing between the gutter and the roof sheeting. This video demonstrates where flashing could be leaking from on a brick wall.

Metal flashing copper bend at a 90 degree angle making the transition between the roof and chimney.