Minimum Pitch For Cedar Shingle Roof

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

Minimum pitch for cedar shingle roof.

So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum. Degrees to pitch rise in run table. Roof slope equivalents as rise. You are required to have a double layer of asphalt saturated felt paper or a single layer of ice water shield under your.

Asphalt shingles continue to be the most widely installed roof covering option in north america. Complete list of roofing types. We do install shingles on these in between pitches but special application measures must be taken in this middle ground. 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.

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. Low sloped roof shingle installation. You could also opt for a pvc flat roofing membrane. While a low pitch roof may not show the aesthetic qualities of cedar shingles to full advantage they provide a lightweight durable solution where a pitched roof is required.

The shingles are 4 10 to 1 2 in thickness and wood shingles are installed with a 5 exposure 16 shingle length 5 1 2 exposure 18 shingle length or 7 1 2 exposure 24 wood shingle length. This means for every 12 horizontal units the roof must rise a minimum of 2 vertical units. The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span. Roof pitch multiplier table.

Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above. To achieve a sound watertight roof the gauge of the shingle assuming the standard 5x or 400mm shingle must be closed to 95mm giving a 4 ply roof. Minimum roof pitch for shingles it is important for shingle roofs to function properly and one method of ensuring that this is achieved is to observe the pitch requirements for the shingles. 1 grade blue label western red cedar shake for roofing and cladding.

If 4 12 and above is normal and 2 12 is minimum what about properties with roofs in between the two such as a 3 12 pitched roof. 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. At these pitches there is a possibility of some water penetration. Asphalt shingles can only be installed on roof slopes of 2 12 or greater.

The minimum roof pitch for shingles and shakes is 14 degrees. Asphalt shingles minimum roof slope roof pitch r905 2 2. Our wooden shakes are the premier no. One of the many advantages of using cedar shingles is that they can be used on roof pitches as low as 14 degrees.