Roof Underlayment Flashing Detail

One common method is to lay the edge metal under the eaves membrane and over the rake.

Roof underlayment flashing detail.

We describe how to construct three common styles of roof valley. Two ways to flash roof edges. Valley flashing for roofs. This article discusses details and specifications for roof valley flashing for best construction roof leak resistance.

Details roofing wrb flashing. The sketch above illustrates the end profile of roof drip edge flashing and shows its placement on the roof. Protect the eave from ice dams and sideways rain step one in steep slope roofing is the edge flashing. Our photo above shows what we ask of roof edges.

Install your underlayment completely and your shingles up to where the wall begins so that the first piece of flashing or the corner flashing will rest on a shingle. A roofer has cut the housewrap at the joint between the roof and the wall folding it back so that he can lap it down over the underlayment and step flashing as the author recommends. Synthetic underlayment and ice barrier membrane readily fold at this wall to roof joint. But where no gutters are installed you might get a peek.

Open valley closed cut valley and woven roof valley and we include roof valley underlayment and nailing specifications.