Most flashing is 8 inches wide.
Proper roof to wall flashing.
Even if one piece of step flashing fails the flashing and shingle below it start the process over again.
Edge flashing and starter strip roofs peel off from the edges so it is critical to hold them tight with the roof deck sealed on the outside we turn to flashing the edges with metal and membranes metal drip edge flashing details roofing wrb flashing two ways to flash roof edges.
Use step flashing that has a 2 to 4 inch longer vertical leg than normal.
Step flashing redirects the water back onto the shingle.
Storm proof roof 2.
Step flashing is a rectangular piece of flashing bent 90 degrees in the center.
It s much easier to reseal the flashing than it is to patch a water stained wall or ceiling.
Fasten loose nails and cover exposed nail heads with roofing cement.
Learn how to install it below.
It is used for roof to wall flashing.
Do not seal housewrap or building paper to step flashing.
4 inches should go up the house wall and 4 inches should go on top of the porch roof shingles.
How to install roof flashing against a wall.
Use the metal break tool to bend the flashing lengthwise in the middle according to the angle of the roof joint.
The metal flashing is formed with a hook edge and cleated on 12 centers.
Tape the top of step flashing with 4 inch wide minimum self adhering modified bitumen roof tape.
At roof to wall intersections see figure 1.
Badly corroded flashing will need to be replaced.
Step 6 make a 10 degree bend on the shingle edge of the flashing approximately 1 2 inch from the edge.
Flashing joints are lapped 6 in the direction of water flow.
Roofing cement can dry out and crumble away exposing joints to water.
Multiple pieces of the flashing will be installed in layers with shingles to ensure the water flows away from the wall.
Recaulk the joints between the roof and the flashing.
The flashing extends onto the roof a minimum of 2 inches 4 inches is preferable in more severe climate areas.
Renew flashing seals by chipping out old caulking and mortar along the edges of the flashing.
Continuous flashing against a sidewall is one way to install a roof but it s not the correct way.
