Roof Step Flashing Size

Length to extend 5 in.

Roof step flashing size.

At the end of the vertical sidewall the step flashing shall be turned out in a manner that directs water away from the wall and onto the roof and or gutter. Ideally this should be 150mm or a minimum of 75mm again common sense and exposure applies. Flat roof flashing this could virtually be any type of flat roof the upstand of the flat roof covering is overlapped by the drop of the flashing. Even if one piece of step flashing fails the flashing and shingle below it start the.

Longer than the shingle s exposure. The step flashing i picked up at hd is 8 long most of what i have used so far is leftover step flashing from skylights they are 9 5 long but i needed about 2 dozen more to finish the bottom piece near the gutter should be kick out flashing this will direct water away from the siding house into the gutter this one is pre made. Step flashing can be fabricated in any size or metal but its commonly fabricated in copper due to better protection against leakage when soldered. Lead flashing maximum length.

Flashing against a vertical sidewall shall be by the step flashing method. 3 in x 4 in aluminum step flashing. Cut step flashing pieces to be 10 in. For pricing and availability.

For example 3 tab shingles usually have a 5 5 8 inch 143 mm exposure. Further your step flashing pieces need to be 10 inches 254 mm long and at least 2 inches 50 mm wider than the exposure of the shingle you re using. This allows each step flashing piece to overlap the piece below. Step flashing redirects the water back onto the shingle.

Every asphalt roofing manufacturer s installation instructions that i have ever seen specify step flashing as the preferred way to flash the roof to wall juncture. Typically 10 by 8 inch 253 mm x 203 mm flashing is chosen. The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide. 4 in x 120 in galvanized steel step flashing.

Riverside also manufactures custom chimney flashing kits and skylight kits ready for installation. Continuous flashing is sometimes seen where a roof meets a sidewall but in the long run step flashing will do a better job of preventing water leaks. We also manufacture custom step flashing such as corner parts and can match any profile.