Roof Pitch For Lean To

High pitched roofs often need extra fasteners and their pitch can be as high as 21 12.

Roof pitch for lean to.

Solutions for lean to sheds both the asphalt shingles and metal roofs can be installed on a low slope lean to shed roof if the proper product is used and it is installed properly. Regular asphalt shingles that are rated for 4 in 12 roof slopes can be installed on lower slope roofs by simply installing a waterproof membrane under them. However you can only use this pitch with built up roofing or specialized synthetic roofing. A low pitched roof is anything that is any roof with a pitch of 3 12 or less.

More commonly roll on membranes such that use heat to bond seams together is used as a roofing material. In other words if there is a 1 1 2 ridge board nailed into the wall and the width of the lean to is 96 then the run will be 94 1 2 96 1 1 2 94 1 2. Enter this measurement into the calculator and select a roof pitch and the length of the rafter will automatically returned along with the rise. They have a pitch ranging from 4 12 to 9 12.

Many roofing shingles do not allow applications onto roofs at this pitch.