Lowest Pitch Shingle Roof

Wood shingles require a minimum roof pitch of 3 12 or greater.

Lowest pitch shingle roof.

Low sloped roof shingle installation. 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. As well a slope of 4 12 is most commonly considered the lowest slope for standard shingle installations. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run.

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. In either case find a professional roofing contractor experienced with low slope roofs and these specific products. Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above. So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.

Wood shakes require a minimum roof pitch of 3 12 or greater. Most manufacturer and industry recommendations require or at the very least recommend special underlayment or other considerations on roofs between 2 12 and 4 12. The asphalt shingle manufactures recommend that you install asphalt shingles on a recommended minimum of 4 in 12 or greater however most manufactures will warrant their shingles down to a 2 in 12 pitch if the recommended installation method is used. Installation on roof slopes below a 2 in 12 pitch is not recommended at all.

We do install shingles on these in between pitches but special application measures must be taken in this middle ground. Current as of august 2020 asphalt shingles are an effective roof covering material for sloped roofs that can be successfully used on slopes as low as 2 12. Metal roof shingles require a minimum roof pitch of 3 12 or greater. 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.

The following table provides the minimum required allowable roof slope for each type of roofing material mentioned in the code. As in all construction work paying attention to the little details can make all the difference between a long lasting trouble free project and one that results in callbacks and early failure never a good option with a new england roof. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. You are required to have a double layer of asphalt saturated felt paper or a single layer of ice water shield under your.