How To Lay Asphalt Roll Roofing

How to install roll roofing on low slope roofs.

How to lay asphalt roll roofing.

On aug 14 2009. To ensure our content is always up to date with current information best practices and professional advice articles are routinely reviewed by industry experts with years of hands on experience. Roll roofing is often installed over bare wood sheathing or sheathing that has been painted with a primer. You ll need to use plenty of pressure with the razor knife to cut the rolled roofing material.

Install drip edge and install 9 cant strips of roll roofing material along the rake and eaves edges gable ends and lower roof edge such that the roofing strip overhangs the roof deck by 1 4 to 3 8. It also helps if you first install a layer of roofing felt. Roll roofing is different. A typical roof has three layers a felt layer and two layers of overlapping shingles.

Roll roofing is made from the same asphalt composition material as shingles and it s easier to install. Nail the roofing strips parallel to the roof edge set in 1 and 8 from the roof edge with nails spaced 4 o. Prepare roof edges cant strips. The rolled roofing should reach the chalk line when you lay it down and should stretch from 1 side of the roof to the other.

For extra durability you may install roll roofing in two layers. The strips should always be horizontal. Applying roofing felt first will better protect the sheathing against condensation as well as against leaking. If you install roll roofing using the double coverage method it will last longer.

There are three systems including glue down torch down and peel and stick.