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.
2 12 pitch roof options.
This measurement is best done on a bare roof because curled up roofing shingles will impair your measurement.
Resilient asphalt shingles lie much flatter to the substrate than slate tile and concrete which keeps water from being easily blown under them.
I ve been reading and reading but haven t found a good answer.
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.
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.
Roof pitch designations are comprised of two numbers indicating a ratio.
Pitch is the term used to describe the angle slope or slant of your roof.
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.
The ratio can be indicated by a division slash separating the numbers such as 2 12 or 7 12.