1 12 Roof Pitch Shingles

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.

1 12 roof pitch shingles.

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

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. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. For that reason flat roofs are limited to these types of covering materials. Clay or cement tiles can be used on a wide range of roof pitches.

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. Comes in colors and an opaque color which would allow light into the area below. 4 12 to 20 12 pitches. Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.

For pitches of 2 5 12 up to 4 12 the roof requires double underlayment. This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. 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.

Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. Asphalt shingles continue to be the most widely installed roof covering option in north america.