Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.
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.
Metal roof shingles require a minimum roof pitch of 3 12 or greater.
Comes in colors and an opaque color which would allow light into the area below.
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 pitches of 2 5 12 up to 4 12 the roof requires double underlayment.
Wood shakes require a minimum roof pitch of 3 12 or.
Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.
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.
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.
1 12 pitch roof if this is a porch on a trailer use corrugated sheet material can be found at lowes.
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.
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.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Mineral surfaced roll roofing requires a minimum roof pitch of 1 12 or greater.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.