Metal roof spec s vary wildly from brand to brand and brands vary wildly from region to region.
Roofing options for 2 12 pitch.
Most architectural dimensional laminate shingles are good down to 2 12 with i ws underlayment per manufacturer s instructions.
2 5 12 to 19 12 pitches.
Minimum required roof slope for roofing materials.
For a 2 12 pitch some of the snap seam products as well as some of the corrugated products could be used.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
What is the minimum slope for an asphalt shingle roof.
The best roofs for a 2 12 pitch roof pitch basics.
My only recommendation with metal is that you read and understand the installation instructions before buying any material.
Clay or cement tiles can be used on a wide range of roof pitches.
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.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
9 46 built up roof asphalt.
A 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal.
So a roof with four inches of rise every 12 inches horizontally run would have a slope of 4 12 sometimes displayed as 4 12.
Minimum required slope x in 12 minimum required slope degrees asphalt shingles.
Roofing material or system.
Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.
18 43 asphalt shingles with special underlayment requirements 2 in 12.
You could also use a field seamed panel.
You could also opt for a pvc flat roofing membrane.
All of these are vertical seam.
The slope of a roof often referred to as the pitch is determined by rise over run the roof s vertical rise in inches for every twelve inches of horizontal length the run.
For pitches of 2 5 12 up to 4 12 the roof requires double underlayment.
A roof has a low pitch if it slopes anywhere from 2 12 to 4 12 inches meaning that for every foot the roof extends horizontally the level of the roof rises two to four vertical inches.
So you would need to pick the right option as most regular standing seam metal roofs will require a roof pitch of 2 12 or even 3 12 at a minimum.
A pitch of 2 12 is the minimum pitch for shingles made of asphalt so your roof just barely.
Some roofs have extremely low slopes and appear to be nearly flat.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.