1 12 Roof Pitch Shingles

Asphalt shingles should never be applied to roof slopes below 2 12 2 of vertical rise for every 12 of horizontal run or 9 5.

1 12 roof pitch shingles.

For pitches of 2 5 12 up to 4 12 the roof requires double underlayment. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. Comes in colors and an opaque color which would allow light into the area below. Additional underlayment protection with special application methods are required when asphalt shingles are installed on a low slope roof following the manufacturer s application instructions.

Wood shakes require a minimum roof pitch of 3 12 or. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Clay or cement tiles can be used on a wide range of roof pitches.

Metal roof shingles require a minimum roof pitch of 3 12 or greater. Wood shingles require a minimum roof pitch of 3 12 or greater. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. For that reason flat roofs are limited to these types of covering materials.

Flat and nearly flat roofs a pitch of 1 in 12 or 2 in 12 cannot be covered with shingles or shakes of any material since there is not enough angle to combat the danger of blow off. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. 4 12 to 20 12 pitches. Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.

A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely makes the cut off for one of the most popular roofing material options. The picture below shows the pitch of a 7 12 roof slope meaning that for 12 of horizontal measurement roof run the vertical measurement roof rise is 7.