How To Flash A Roof Against A Wall

Installing the roofing felt.

How to flash a roof against a wall. Place the first step flashing strip over the end of the starter course shingle and use two nails to fasten the step flashing to the roof with 2 nails. Installing step flashing to stucco walls step 1. Add cement and flashing. Even if one piece of step flashing fails the flashing and shingle below it start the process over again.

It is commonly used in two story and side split houses. How to install roof flashing against a wall. Metal roof flashing can be use to seal gaps between roof walls. A 5 inch wide flashing will result in a 2 1 2 roof deck flange and 2 1 2 vertical wall flange.

Step flashing redirects the water back onto the shingle. Flexible flashing tape seals the eave to the wall. Next cut from the other corner on the same side of the step flashing and along 45 degrees to the centerfold. These kinds of houses often have a roof that butts against a wall.

Next you will use asphalt or roofing cement. Do not fasten the flashing to the wall because it must float with the roof. I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall. I cut the tape so that it laps onto the housewrap above and 3 in.

Iws is used in conjunction with step flashing or 4x5 wall flashing to create a water tight junction. Above the roof sheathing. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Likewise a 10 wide flashing will result in a 5 inch wide roof deck flange and a 5 inch vertical flange.

Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it. Obviously the further up the wall a flashing extends the greater the resistance to water intrusion. Layer the cement on the area that you. The first step flashing or the corner flashing should rest.

Metal roof flashing is a galvanized sheet metal bent at right angles with about eight to 12 inches on each side of the angle.