This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
Roofing options for 2 12 pitch.
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.
No roof of course should actually be completely flat.
2 5 12 to 19 12 pitches.
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 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal.
9 46 built up roof asphalt.
In 12 0 25 in 12 1 19 built up roof coal tar pitch.
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.
A pvc roof is a lot more durable and longer lasting that a conventional epdm rubber roofing system.
Clay or cement tiles can be used on a wide range of roof pitches.
The best roofs for a 2 12 pitch roof pitch basics.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
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.
Most architectural dimensional laminate shingles are good down to 2 12 with i ws underlayment per manufacturer s instructions.
What is the minimum slope for an asphalt shingle roof.
Slopes above 19 12 are not recommended since tiles on very steep roofs can rattle.
Minimum required slope x in 12 minimum required slope degrees asphalt shingles.
18 43 asphalt shingles with special underlayment requirements 2 in 12.
Metal roof spec s vary wildly from brand to brand and brands vary wildly from region to region.
Roofing material or system.
You could also use a field seamed panel.
You could also opt for a pvc flat roofing membrane.
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.
My only recommendation with metal is that you read and understand the installation instructions before buying any material.
For a 2 12 pitch some of the snap seam products as well as some of the corrugated products could be used.
Minimum required roof slope for roofing materials.
All of these are vertical seam.
For pitches of 2 5 12 up to 4 12 the roof requires double underlayment.