2 12 Pitch Roofing Materials

Rolled roofing material is often used on roofs that are low sloped.

2 12 pitch roofing materials.

Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. Metal roof shingles require a minimum roof pitch of 3 12 or greater. Roof pitch designations are comprised of two numbers indicating a ratio. Pitch is the term used to describe the angle slope or slant of your roof.

Anything more than 9 in 12 is considered steep. Or the colon can replace the slash as in 2 12 or 7 12. Otherwise the safest minimum pitch for rolled roofing is 2 inches of decline. A flat roof has a slope of 2 in 12 or less.

The run always remains constant at 12 inches. For example a 4 12 pitch roof that is 100 square feet. For instance a 7 12 roof pitch means that the roof rises 7 inches for every 12 horizontal inches. Outside of the u s a degree angle is typically used.

The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. Use our roof pitch calculator to find the pitch of your roof. For that reason flat roofs are limited to these types of covering materials. 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.

Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. A low slope roof is anywhere from 2 in 12 to 4 in 12. 100 1 054 105 4ft 2.

Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area. Roof pitch defined and explained. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater.

I ve been reading and reading but haven t found a good answer. It affects walkability as well as drainage and roofs in areas of high rain. Conventional slope roof range between 4 in 12 and 8 in 12. What is the best value price compared to life compared to ease of installation material to go on top of shingle on a 2 12 pitched roof that is also comparatively easy for a handy man homeowner to install considering in order of importance price vs expected life time vs ease of installation.

The pitch of the roof is the rise over a 12 inch run. Flat and nearly flat roofs a pitch of 1 in 12 or 2 in 12 cannot be covered with shingles or shakes of any material since there is not enough angle to combat the danger of blow off. How roof pitch determines suitable roofing systems. A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options.