Roof Systems For 2 12 Slope Roof

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

Roof systems for 2 12 slope roof. Metal roof slope is expressed by a ratio indicating the roof pitch which notes the vertical rise of the roof in inches for every 12 inches the roof runs horizontally in other words dividing the vertical rise and its horizontal span. These roofs have a pitch less than 4 12. Roof pitch degree table. Or the colon can replace the slash as in 2 12 or 7 12.

For roofs that will experience heavy snow or wind and will span the same distance use 2 6 rafters. They have a pitch ranging from 4 12 to 9 12. That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.

The list below contains the common roof slopes and the terms which classify them. Image 1 12 to 12 12 roof pitch 7 12 pitch. Generally such roofs have a pitch ranging from 1 2 12 to 2 12. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.

For roofs that won t experience heavy snow loads a gable roof can span up to 22 with 2 4 rafters. Simply put it s a shallow roof. The most common slopes are. Asphalt shingles continue to be the most widely installed roof covering option in north america.

So a roof with four inches of rise every 12 inches horizontally run would have a slope of 4 12 sometimes displayed as 4 12. 3 12 1 2 12 and 1 4 12. A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. Residential and commercial roofing shingles slate roof ventilation roof underlayments asphaltic and tpo roof membranes.

Conventional roofs are the easiest to construct and you can walk on them safely. Roof pitch defined and explained. 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.

Roofing shingles and materials plus factory certified roofers including ratings from real homeowners from north america s largest roofing manufacturer. 21 12 and higher. We included a roof pitch chart below the 7 12 example image and the calculator below that.