Minimum Roof Pitch For Felt Shingles

Asphalt shingles require a minimum roof pitch of 2 12 or greater.

Minimum roof pitch for felt shingles.

What is the minimum slope for an asphalt shingle roof. The minimum pitch for shingles is 1 6 which is equivalent to 4 inches rise to 24 inches run. Minimum required roof slope for roofing materials. So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run.

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. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. We do install shingles on these in between pitches but special application measures must be taken in this middle ground.

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. Let us recap on the minimum roof pitch required for each type of roofing material. Low sloped roof shingle installation. Metal roof shingles require a minimum roof pitch of 3 12 or greater.

Determine the minimum slope of the roof based on the roofing material. Asphalt shingles continue to be the most widely installed roof covering option in north america. The minimum pitch for a. The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span.

Tuesday september 11 2018 manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Roofing material or system. 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.

You are required to have a double layer of asphalt saturated felt paper or a single layer of ice water shield under your.