How To Apply Flashing On A Rolled Roof

Reinstall lead flashing mechanically fastening it to decking.

How to apply flashing on a rolled roof.

Pull back 6 inches of the. This material is available with a v or w shaped profile and is placed over the top of the building felt before the roof s finishing material is installed. Only use nails in the top two corners. Install a lead flashing mark edges of flashing on the new roof.

Install the rolled roofing first making sure it is cut tight to the plumbing vent. Val ley flashing protects the valleys where two roof planes meet. Flashing is installed to surround roof features such as vents. When using the concealed nail method apply lap cement to the entire area between the chalk lines and then embed the 12 inch strip in it.

This how to video explores proper roof flashing installation for shingle roofing applications. On this video i showed you how to prepare a basic flat roof step by step hope you learn something and. The term rolled roofing generally refers to a product called mineral paper which builders use as a primary roof covering on sloped residential roofs. Cut a hole in the roof just large enough for the vent pipe and lay the strip into place.

Remove flashing and install a layer of roof cement within the marks. Then install metal vent flashing over the pipe coating the. Unlike built up or hot mop roofs mineral paper roofs do not require a coating of waterproof membrane. This flashing comes shaped like a v or a w valley flashing is attached on top of the roofing felt before shingles are added.

Rolled roofing consists of asphalt bound sheets coated with sand like granules. Step flashing protects the joints between the roof deck and chimneys or dormers. Step 3 align the length of roll roofing with the lowest edge of the flat roof and flush to the side edge of the roof. Read the roll roofing manufacturer s instructions to determine if you need to apply an asphalt primer over the roof deck because some peel and stick products adhere more effectively with a primer.

Visit your local hardware store and ask for enough rolled roofing to fit the area of your roof. Flat roof installation. Wherever you have a valley in your roof which the junction is where two roof planes meet at the bottom of a slope you ll apply your valley flashing.