2 12 Pitch Roofing 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.

2 12 pitch roofing materials.

Conventional slope roof range between 4 in 12 and 8 in 12. Roof pitch is a determining factor for cost of the roof as well as the roof area and the type of materials used. 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. For example a 4 12 pitch roof that is 100 square feet.

The run always remains constant at 12 inches. The pitch of the roof is the rise over a 12 inch run. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. For that reason flat roofs are limited to these types of covering materials.

100 1 054 105 4ft 2. Use our roof pitch calculator to find the pitch of your roof. Or the colon can replace the slash as in 2 12 or 7 12. Roof pitch defined and explained.

Anything more than 9 in 12 is considered steep. Wood shingles require a minimum roof. 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. Roof pitch designations are comprised of two numbers indicating a ratio.

I ve been reading and reading but haven t found a good answer. 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. A flat roof has a slope of 2 in 12 or less. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater.

Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. Otherwise the safest minimum pitch for rolled roofing is 2 inches of decline. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. Metal roof shingles require a minimum roof pitch of 3 12 or greater.

Next multiply the footprint of the roof by the multiplier below for your roof pitch to find the overall roof area. It affects walkability as well as drainage and roofs in areas of high rain. A low slope roof is anywhere from 2 in 12 to 4 in 12. 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. Rolled roofing material is often used on roofs that are low sloped. How roof pitch determines suitable roofing systems. Pitch is the term used to describe the angle slope or slant of your roof.