Roofing Material For A 2 12 Slope

Sunday august 5 2018.

Roofing material for a 2 12 slope.

The traditional metal roof types such as 5v crimp shown above and corrugated are rated by the manufacturers for use down to a 3 12 pitch three inches of vertical rise for every foot of horizontal run. One issue that has stumped the roofer is a low slope area of 2 12. Or the colon can replace the slash as in 2 12 or 7 12. If roofing material is installed on a roof with a slope that is less than what is specified by the manufacturer it will void the warranty.

This means for every 12 horizontal units the roof must rise a minimum of one quarter vertical unit. At slopes lower than 2 12 on residential structures the primary roofing options are built up roofing bur often called tar and gravel modified bitumen and epdm see table 2 17 above. The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12. Standing seam roof systems must have a minimum roof slope of 1 4 12 2 slope.

Tile is an expensive roofing material with costs that can range from 10 to 18 per square foot installed though more uncommon ceramic tiles can run as much as 30 per square foot installed. That means the roofing material you choose needs to protect the materials underneath to prevent water damage and leaks. A 2 12 roof slope is considered low so the roofing materials you would use on a steeper roof may not work. The list below contains the common roof slopes and the terms which classify them.

Clay tile is a very long lasting roofing material that can last more than a century. Modified bitumen roofing minimum roof slope roof pitch r905 11 1. Can metal roofing be used on a low slope pitch roof. The metal shingle manufacturer will only guarantee to a 3 12 slope but will verbally state it should work with no problem.

Modified bitumen membrane roofs must have a design roof slope of 1 4 12 or greater 2 slope. We are having a home constructed and desire to use metal roofing with shingles as the preferred product. 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. Pitch is the term used to describe the angle slope or slant of your roof.

It s the go to material in snow country. In addition a handful of proprietary single ply roofing membranes designed for easy application to small jobs have entered the market and offer a few new choices. This is particularly important to pay attention to when using metal roofing products such as standing seam metal which have a multitude of profiles attachment methods and seam lap joint styles which can affect the recommended slope.