Rool Roofing Pitch

Asphalt roll roofing or membrane is a roofing material commonly used for buildings that feature a low sloped roof pitch in north america.

Rool roofing pitch.

An organic felt or fiberglass mat saturated with asphalt and faced with granular stone aggregate. This quick and easy roofing solution consists of felt backing that is impregnated with asphalt and coated with minerals. The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. How to install roll roofing on a flat or pitched roof with your own hands.

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. The function of the roof in weather and the environment determines the minimum pitch for a roof. The minimum pitch for roll roofing is 2 12 or 2 inches rise to 12 inches run. It has just one layer so it goes.

Built up roofs require a minimum roof pitch of 1 4 12 or greater. Wood shakes require a minimum roof pitch of 3 12 or greater. If your roof pitch declines up to 1 inch vertically for every 12 inches horizontally 1 12 pitch it is a good candidate for rolled roofing as long as you use the concealed nail method of fastening. Wood shingles require a minimum roof pitch of 3 12 or greater.

That is if your roof is 12 units wide it should not be taller than 2 units for rolled roofing. For example you may think you want classic composite shingles on your roof but if the pitch is below a certain ratio you may be forced to install a different type of roofing perhaps rolled roofing or standing seam metal roofing. How to install roll roofing on low slope roofs. 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.

Rolled roofing is not recommended for roofs that have a greater than a 2 to 12 pitch. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. Many factors determine which roofing materials you can use and one make or break factor is the slope of the roof known as roof pitch. Roll roofing is different.

A typical roof has three layers a felt layer and two layers of overlapping shingles. Otherwise the safest minimum pitch for rolled roofing is 2 inches of decline per 12 inches of horizontal direction 2 12 pitch. The roof pitch is necessary for two things one estimating the amount of material to be ordered for the job and two knowing what materials are suited for the roof. Installation tips and guides.