How To Install Rolled Roofing Over Shingles

Step by step roll roofing installation 1.

How to install rolled roofing over shingles.

Install a drip edge around the perimeter of the roof. In this video we provide details on how to install roof shingles over existing shingles. For extra durability you may install roll roofing in two layers. The strips should always be horizontal.

At the eave and the rake install u shape drip edge flashing made for reroof jobs. 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 the eave piece first then the rake piece over it.

Roll roofing is different. This aluminum flashing protects the edges of the roof sheathing. Use a trowel to spread roofing cement over half or more of the strips. It also helps if you first install a layer of roofing felt.

After it is unrolled and spread into place over the roof it must be nailed down. The two pieces should meet neatly at the corners. 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 has just one layer so it goes.

We discuss the nesting method which helps minimize an uneven appear. Drive nails at high points on the underlying roof the bottoms of the shingles. Position and roll out the roofing carefully because it is not easy to reposition then press it into the cement. How to install roll roofing on low slope roofs.

Nail only its top edge the part that is bare of mineral coating. Then set the first course in the cement so it overhangs by about 1 4 inch.