Use a trowel to spread roofing cement over half or more of the strips.
How to install rolled roofing over shingles.
As with the felt paper it is very important to properly align the roll roofing.
Install the eave piece first then the rake piece over it.
Step by step roll roofing installation 1.
Then set the first course in the cement so it overhangs by about 1 4 inch.
A typical roof has three layers a felt layer and two layers of overlapping shingles.
For extra durability you may install roll roofing in two layers.
Roll roofing is different.
Nail only its top edge the part that is bare of mineral coating.
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.
Drive nails at high points on the underlying roof the bottoms of the shingles.
It also helps if you first install a layer of roofing felt.
We discuss the nesting method which helps minimize an uneven appear.
Position and roll out the roofing carefully because it is not easy to reposition then press it into the cement.
At the eave and the rake install u shape drip edge flashing made for reroof jobs.
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.
The strips should always be horizontal.
Install a drip edge around the perimeter of the roof.
How to install roll roofing on low slope roofs.
Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the.
It has just one layer so it goes.
In this video we provide details on how to install roof shingles over existing shingles.