1 12 Roof Pitch Shingles

4 12 to 20 12 pitches.

1 12 roof pitch shingles.

Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater. 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. For that reason flat roofs are limited to these types of covering materials.

Slate and slate type shingles require a minimum roof pitch of 4 12 or greater. 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. 1 12 pitch roof if this is a porch on a trailer use corrugated sheet material can be found at lowes.

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

Asphalt shingles continue to be the most widely installed roof covering option in north america. 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. Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement. They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.