Installing peel and stick roll roofing on a flat roof requires a minimum slope of 1 2 inch per 12 inch roof run.
Rolled roofing installation flat roof.
Rolled roofing is the least expensive roofing material even compared to low cost composite shingles.
1 install a drip.
Working with a helper expect to spend half a day installing flashings and roll roofing for a 700 square foot roof with modest complications.
Rolled roofing goes down quickly.
Input project size product quality and labor type to get roll roof material pricing and installation cost estimates.
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.
Free online roll roof cost guide breaks down fair prices in your area.
How to install roll roofing on low slope roofs.
Get 2020 roll roof price options and installation cost ranges.
All materials even the nails are inexpensive.
To apply rolled roofing you ll need your roof measurements a broom chalk to mark lines a razor blade to cut the material roofing cement nails and a hammer to hold down the material.
You will need 1 10 gallon of lap not mastic cement for every roll and 2 pounds of roofing nails for every square.
The roofing should overhang the eaves by inch except where you install drip edge flashing on top of the roofing along the rake edge.
Installation tips and guides.
For a flat or nearly flat roof use double coverage although a torch down modified bitumen or epdm roof is a better solution.
Besides creating extra weight for your house to support installing rolled roofing over an existing roof reduces the lifetime of the new roof and existing leaks may reappear.
Prepare the roof by tearing off the old shingles or by preparing for a reroof.
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.
How to install roll roofing on flat or pitched roofs how to install roll roofing on a flat or pitched roof with your own hands.
It has just one layer so it goes.
Hammered down rolled roofing should not be used on flat roofs though as this will lead to leaks.
Visit your local hardware store and ask for enough rolled roofing to fit the area of your roof.
A typical roof has three layers a felt layer and two layers of overlapping shingles.