How To Lay Roll Roofing On A Flat Roof

How to install roll roofing on a flat or pitched roof with your own hands.

How to lay roll roofing on a flat roof.

Installation tips and guides. Typically a flat roof is a low sloping roof with a maximum 10 degrees of pitch or usually having a slope of up to 3 inches per linear foot for adequate drainage. This should give you a 1 inch overhang on the eaves including the top edge. You ll need to use plenty of pressure with the razor knife to cut the rolled roofing material.

Prepare the roof by tearing off the old shingles or by preparing for a reroof. Installing peel and stick roll roofing on a flat roof requires a minimum slope of 1 2 inch per 12 inch roof run. Place the top edge of the roofing along the chalk line. 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.

Roll out and cut roll roofing to cover the length of the roof.