Installing Flashing On Flat Roof

How to install step flashing with a wall corner step three.

Installing flashing on flat roof.

Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. Details concrete masonry roofing wrb flashing. Bend it back so that it overlaps the corner flashing. I cut the tape so that it laps onto the housewrap above and 3 in.

Two ways to flash roof edges. Step flashing for chimneys once the shingles have been installed lay the base flashing around the base of the chimney approximately 4 past each end. Ensure it sits flat and extends at least 8 inches above the shingles. Once you know where the flat roof flashing goes and you have trimmed it the easy part is installing it.

Installing your roof flashing is going to be slightly different depending on the specific type that you re installing. Lead flashing onto a flat roof. Install the drip edge by fitting it on the roof eave pushing it tightly against the edge of the plywood and nailing or screwing it down. Above the roof sheathing.

Hammer one nail to the. But it doesn t work that way. When fitting flashings to flat roofs no overlap onto the roof is required as the roof itself will have it s own upstand flashing built into it. I use a wide piece of flexible flashing tape to protect the area between the subfascia and the wall.

Flashing is generally installed at any joints or edges in the roof where water could otherwise work its way in. Place the flashing where you determined and hammer it in place using roofing nails until the head of the nail is flush with the roof. Once even a small section of roofing cement fails you ll have a leak. Then set the piece down.

Nail it in place with two nails one. How to install porch roof flashing step 1. If you already have faulty flashing installed you. Use 1 inch galvanized roofing nails or 3 4 inch exterior screws.

Prepare the area where you will install the roof flashing. All the same rules of flashing apply except only the measurements of chase depth and drop are required. In order to properly install new flashing you ll have to remove the shingles surrounding your old flashing and then re lay them after installation. Typically flashing is installed using roofing nails and roofing cement.

One common method is to lay the edge metal under the eaves membrane and over the rake. Measure the length of the porch roof joint to determine how much flashing you will need. Space the fasteners by about 12 inches. Overlap two pieces of flashing that meet end to end by at least 1 inch.

Once the flexible flashing is set i apply a piece of housewrap along the wall where the fascia meets it.