Wall To Roof Flashing Detail

Roof flashing is a thin material usually galvanized steel that professional roofers use to direct water away from critical areas of the roof wherever the roof plane meets a vertical surface like a wall or a dormer.

Wall to roof flashing detail.

All roof cladding located at the join except gutters require a flashing fastened on both sides of the join. Flashings near the edges of roofs or walls can be subjected to suction or negative wind loads that can be greater than other positive imposed loads. Flashing joints are lapped 6 in the direction of water flow. Flashing is installed to surround roof features such as vents chimneys and skylights.

23 roof to wall and deck to wall flashing home builder s guide to coastal construction page 1 of 3 purpose. The metal flashing placed on wall top slopes back towards the building directing water inside the structure. The metal flashing is formed with a hook edge and cleated on 12 centers. Maybe in this case the flashing extends upwards behind the building siding forming a zee shape that might reduce this risk.

Install apron flashing over the roofing with. Cut and fold a section of the membrane across. The shorter vertical plane is attached to the upper floor wall under the building paper the lower plane sits on top of the underlayment and under the shingles. Step flashing to a brick wall involves.

Galvanized steel is a trusted low maintenance product that is known for durability. Same type of metal as the flashing material. Roof to wall and deck to wall flashing www fema gov technical fact sheet no. Certain components as depicted in these details may not be provided by the roofing contractor.

Without further inspecting we don t know. The flashing extends up the wall at least 4. To emphasize the importance of proper roof and deck flashing and to provide typical and enhanced flashing techniques for coastal homes. N use flashing cement at joints to help secure flashing.

The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas. Drip edge metal valley flashing dormer chimney and kickout flashing are types of roof flashing that shed water away from the connections between roofs walls chimneys and other building assemblies. N use step flashing that has a 2 to 4 inch lon ger vertical leg than normal. Turn the roof underlay up under adjacent wall underlay 1a and.

With self adhering membrane is suggested prior to installation of sheet metal saddle flashing. N at roof to wall intersections see figure 1. Roof to wall flashing is bent at a 110. N tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.

Install roof and wall underlay over framing. Pre flashing the coping to wall termination with membrane flashing e g.