1 12 Roof Pitch Shingles

Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.

1 12 roof pitch shingles.

Clay or cement tiles can be used on a wide range of roof pitches. 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. For that reason flat roofs are limited to these types of covering materials. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.

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. For pitches of 2 5 12 up to 4 12 the roof requires double underlayment. Comes in colors and an opaque color which would allow light into the area below. Wood shakes require a minimum roof pitch of 3 12 or.

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. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. 1 12 pitch roof if this is a porch on a trailer use corrugated sheet material can be found at lowes.

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. 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. 4 12 to 20 12 pitches. Slate and slate type shingles require a minimum roof pitch of 4 12 or greater.

Wood shingles require a minimum roof pitch of 3 12 or greater. Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.