Minimum Pitch For Cedar Shake Roof

The minimum roof slope allowed by code for any type of roof is in 12 applicable only to.

Minimum pitch for cedar shake roof.

However by using a ridge vent that is pliable and at least 8 wide the material can be installed across the minimum 3 of air space at the ridge to create a shallowing of the slope at the ridge. This translates into a fall of just under 2 5 on an 8 foot roof. Position the first shingle so its end overhangs the edge of the roof by 1 1 4 to 1 1 2 inches. Wood shingles can only be installed on roof slopes of 3 12 or greater 25 slope.

Minimum pitch for cedar roofs if you desire a cedar roof for your home the ideal pitch for your roof ranges from a five pitch to a 12 pitch. Wood shakes minimum roof slope roof pitch r905 8 2. At these pitches there is a possibility of some water penetration. This wood roof article describes.

25 august 2016 the minimum roof pitch for shingles and shakes is 14 degrees. Wood shingle wood shake roof installation specifications. Secure it to the roof by driving in two nails near the top edge of the shingle about 1 inch below its top edge. Minimum roof slope roof pitch r905 7 2.

The 2 12 number is rise over run or two units of vertical for every 12 units horizontal. Fix your roof deck and you are done. Wood shakes can only be installed on roof slopes of 3 12 or greater 25 slope. Page 23 cedar care maintenance overview a word about topical treatments for installed roofs topical treatment products power washing the beauty of cedar download pdf page 24 coverage and exposure tables shingle coverage table 1 shingle exposure table 2 shake coverage table 3 shake exposure table 4 download pdf.

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. I always recommend at least a minimum pitch of 1 in 40. At these low pitches 14 22 degrees care must be taken and a water impermeable vapour permeable underlay must be used underneath with a ventilated space between the membrane and the shingles. This means for every 12 horizontal units the roof must rise a minimum of 3 vertical units.

There is no fabrication of roof trusses required. 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. Shingles of all types need to have a slope to function properly. Always follow the manufacturer s installation instructions.