Minimum Roof Pitch For Gaf Shingles

Asphalt shingles continue to be the most widely installed roof covering option in north america.

Minimum roof pitch for gaf shingles.

Benefits of gaf asphalt shingles. Roofing material or system. Minimum required slope x in 12 minimum required slope degrees asphalt shingles. What slope is considered low slope for shingles.

Minimum net free ven tilation area of 1 sq. 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. A roof slope of 2 12 up to but not including 4 12is considered as low in residential construction. Get automatic lifetime protection on your entire gaf roofing system when you install any gaf lifetime shingle and at least 3 qualifying gaf accessories you ll automatically get a lifetime limited warranty on your shingles and all qualifying gaf accessories.

9 46 built up roof asphalt. When combined with the proper underlayment materials and application they are an excellent solution for a low slope roof with a pitch between 2 12 to 4 12. In 12 0 25 in 12 1 19 built up roof coal tar pitch. Feet 1 s q.

Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above. Or lo cal code minimum requiremen ts. 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. Minimum required roof slope for roofing materials.

There are numerous benefits to selecting gaf asphalt shingles for your roof. Pitch is measured in inches of vertical rise of the roof over one foot 12 inches of horizontal run. 18 43 asphalt shingles with special underlayment requirements 2 in 12. Roof sheat hing a nd to help prevent mold growth.

Minimum roof slope roof pitch r905 6 2 slate shingles can only be installed on roof slopes of 4 12 or greater 33 slope. The recommended minimum roof pitch for shingles is 2 12 or simply two units of vertical rise to every twelve units of horizontal span. Manufacturers of asphalt shingles recommend a pitch of 4 12 or more but the absolute minimum pitch is 2 12. 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.

So a 4 12 pitch roof rises 4 inches for every 12 inches of horizontal run. Meters of ceiling ar ea is required. Here are just a few. Because of the non absorbent nature of asphalt the shingles themselves provide an element of waterproofing which is why they work well for low slopes.

Foot per 150 s q. Low sloped roof shingle installation. Meter per 150 sq.