Install Flashing Rolled Roofing

Cut the sections of flashing with tin snips as needed and nail.

Install flashing rolled roofing.

An underlayment of felt roofing is optional. Remove flashing and install a layer of roof cement within the marks. Install roll roofing measure 35 inches up from the eaves at several intervals along the roof and mark them. Reinstall lead flashing mechanically fastening it to decking.

Do not use the eaves as a guide instead because they can be uneven. In roofing one square equals 100 square feet. How to install roof flashing against a wall. Install an asphalt roll surface with polymer bituminous flashing on a low pitched but not flat roof.

Lay it from the bottom of the roof to the top ensuring 4 inches of overlap at each base line. Attach drip edge along the edge of the roof with roofing cement. Snap a chalk line as a guide for the first layer roofing. You can install metal valley flashing but it is common to simply apply an 18 inch wide strip of roll roofing instead.

Install the rolled roofing first making sure it is cut tight to the plumbing vent. Install a drip edge around the perimeter of the roof. How to install polymer bituminous flashing. While this flashing is self adhesive it is.

Step flashing step flashing redirects the water back onto the shingle. Prepare roof edges cant strips. You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square. Install a lead flashing mark edges of flashing on the new roof.

Flat roof installation. Continuous flashing against a sidewall is one way to install a roof but it s not the correct way. The roofing should overhang the eaves by inch except where you install drip edge flashing on top of the roofing along the rake edge. Even if one piece of step flashing fails the flashing and shingle below it start the process over again.

Water can accumulate in the roofing or flashing on a flat roof causing ponding that will eventually result in rotted underlayment and a roof leak. You can install roll roofing on your own but it goes more smoothly with a helper so grab a friend and get started. Nail the roofing strips parallel to the roof edge set in 1 and 8 from the roof edge with nails spaced 4 o c. Provide 6 inches of overlap under each side of the flashing.

Install drip edge flashings roofing felt and wsu if needed. Set it in a bed of roofing cement smooth out any creases and drive nails near the edges.