How To Install Rolled Roofing Over Shingles
It has just one layer so it goes.
How to install rolled roofing over shingles. The strips should always be horizontal. Position and roll out the roofing carefully because it is not easy to reposition then press it into the cement. The two pieces should meet neatly at the corners. This aluminum flashing protects the edges of the roof sheathing.
For extra durability you may install roll roofing in two layers. After it is unrolled and spread into place over the roof it must be nailed down. At the eave and the rake install u shape drip edge flashing made for reroof jobs. Roll roofing is different.
After the eave drip is in place it is time to lay the roll roofing. Nail only its top edge the part that is bare of mineral coating. Drive nails at high points on the underlying roof the bottoms of the shingles. Install the eave piece first then the rake piece over it.
Use a trowel to spread roofing cement over half or more of the strips. How to install roll roofing on low slope roofs. Then set the first course in the cement so it overhangs by about 1 4 inch. Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the.
It needs to be nailed down with each nail spaced roughly 6 inches apart. Install a drip edge around the perimeter of the roof. We discuss the nesting method which helps minimize an uneven appear. To install roll roofing you ll need to cut the material into long strips of the correct length for your roof and lay it flat.
It also helps if you first install a layer of roofing felt. Step by step roll roofing installation 1.