Minimum Roof Pitch For Standard Shingles

In north america we express this as a fraction of 12.

Minimum roof pitch for standard shingles.

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. Tuesday september 11 2018 manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12. We do install shingles on these in between pitches but special application measures must be taken in this middle ground. What is the minimum slope for an asphalt shingle roof what is the minimum slope for an asphalt shingle roof the short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

The minimum roof pitch for regular shingles roof pitch refers to the steepness of a roof as a ratio relative to absolute flatness. Twelve on twelve the answer to this question is that the minimum roof pitch for shingles is 2 12. Hence a roof pitch of 2 12 is a gentler gradient that say 4 12. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run.

Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above. Low sloped roof shingle installation.