Step Flashing Roof Detail

Step flashing is a rectangular piece of flashing bent 90 degrees in the center.

Step flashing roof detail. Step flashing can be made with aluminum copper lead galvanized steel or. Design of flashing details to suit the application can help to ensure reliable function and a quality finish. Step and cover flashings are mostly used for profiled tiles. The term reglet flashing refers to an installation method for counter flashing not a separate layer.

Step flashing protects the interface between a roof and a wall from water leaks that can cause hidden damage for years. Step flashing redirects the water back onto the shingle. Counter flashing is the final layer of a three part waterproof barrier installed between a roof and a vertical wall or chimney. Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall.

However step flashings are used for slates and double overlapping flat profile tiles with accompanying lead soakers like the plain tiles pictured. Any sheet or step joint ridge capping or parapet flashing. Drive one nail to hold it in place. Stepped flashing is used where a sloped shingled roof intersects a vertical wall.

Apply a vertical bead of caulk as shown. Step flashings there are two distinct types of step flashing on a roof and getting them wrong can create leaks. It is used for roof to wall flashing. The flashing shall be a minimum of 4 inches 102 mm high and 4 inches 102 mm wide.

Where this is unavoidable use an overflashing between the. This roof ends in a peak. We ask for 6 inches up the wall. Step flashings are interwoven with the shingles and act essentially as shingles with an upturned leg to allow a transition of the vertical drainage plane of the wall to the drainage plane of the roof.

The first two layers are called base flashing and step flashing. For the first side cut the step flashing along the fold line and bend down the lower flap. 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 while this is a nice diagram of how these flashings work don t forget our 5 th design rule. Even if one piece of step flashing fails the flashing and shingle below it start the.

Roof flashing large roof penetration 8 small roof penetration 8 change of pitch 8. 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.