The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.
2 12 pitch roof options.
I ve been reading and reading but haven t found a good answer.
What is the best value price compared to life compared to ease of installation material to go on top of shingle on a 2 12 pitched roof that is also comparatively easy for a handy man homeowner to install considering in order of importance price vs expected life time vs ease of installation.
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.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Asphalt shingle options 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.
Roof pitch designations are comprised of two numbers indicating a ratio.
Current as of august 2020 asphalt shingles are an effective roof covering material for sloped roofs that can be successfully used on slopes as low as 2 12.
Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.