Minimum Slope For Cedar Shingle Roof

Minimum pitch for cedar roofs.

Minimum slope for cedar shingle roof.

The davinci composite shake is the best possible option i could find for staying as close to real wood on our roof. Minimum required roof slope for roofing materials. Slope and exposure tables for wood shake shingle roofs click to enlarge any image as discussed in best roofing practices recommended exposures for shakes and shingles on roofs are shown in tables 2 13 and 2 14. That works out to about nine degrees if that works better for you.

Lap sealants shall be applied in accordance with the approved manufacturer s installation instructions. The same can also be the case when the tiled roof has a reduced exposure. The minimum recommended slope for standard installation of shingles is 3 12 and 4 12 for shakes. If you desire a cedar roof for your home the ideal pitch for your roof ranges from a five pitch to a 12 pitch.

This minimum slope requirement can be found in the installation instructions for almost every manufacturer and. Wood shingles minimum roof slope roof pitch r905 7 2. The minimum slope for standing seam of roof systems shall be one quarter unit vertical in 12 units horizontal 2 percent slope. The requirements for an asphalt shingles roof are contained in the international building code.

This means for every 12 horizontal units the roof must rise a minimum of 4 vertical units. An installer will apply the cedar shingles of a fully waterproof built up roof or layer. Examples of extreme slopes range from 1 4 12 almost flat to 12 12 sloping down at a perfect 45 degree angle. The minimum requirement is 2 12.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. As much as i love wood i no longer have to worry about maintaining a real cedar shake roof. Slate shingles minimum roof slope roof pitch r905 6 2. If your home features a low slope roof you can still install the cedar roof of your dreams.

Depending on the roof profile there are minimum roof slope requirements. The minimum slope for lapped non soldered seam metal roofs with applied lap sealant shall be one half unit vertical in 12 units horizontal 4 percent slope. 18 43 asphalt shingles with special underlayment requirements 2 in 12. In 12 0 25 in 12 1 19 built up roof coal tar pitch.

Minimum slope for asphalt shingles. High and low pitch examples. Slate shingles can only be installed on roof slopes of 4 12 or greater 33 slope. Roofing material or system.

Asphalt shingles continue to be the most widely installed roof covering option in north america. Shingles of all types need to have a slope to function properly. 9 46 built up roof asphalt. Wood shingles are more susceptible to leaks than composite or asphalt shingles because they don t lock as tightly or lay as flat as traditional shingles.

For every 12 horizontal feet the roof changes 8 feet in vertical height. The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. According to this code the minimum slope for asphalt shingles is 17 degrees or two vertical units to twelve units in the horizontal. A shingle roof like this north dallas garage in the photo above may have a failure no matter how good a job the installer did.

Minimum required slope x in 12 minimum required slope degrees asphalt shingles.