How To Install Rolled Roofing On A Flat Roof

The piece should overlap the lower course by at least 4 inches.

How to install rolled roofing on a flat roof.

Place the first layer of rolled roofing on the roof. Roll roofing a small flat roof with greg zanis weatherwatch this quality gaf leak barrier helps keep water out of the most vulnerable areas of your roof inc. Cut a hole in a piece of roofing about 2 feet wide and slip it over the pipe. To seal a plumbing vent spread roofing cement around the pipe.

Roll out the first sheet and ensure that it lies flat and even. Push the rolled roofing down into the wet cement to secure it to the roof. As you place the rolled roofing down stretch it to get rid of wrinkles and creasing. The first layer should cover the roof as far as the chalk line.

Prepare a valley between joined roofs by cutting a strip that is 18 inches wide and covers the entire length of the valley. Cut a hole in the roll roofing and slip it over as well. Nail it in place with roofing nails that penetrate at least 3 4 inch into. Modern technologies have significantly improve the performance of bitumen roll materials to extend their service life of up to 15 25 years and made them more universal.