Corresponding editor paul fisette replies.
Installation of asphalt shingles on low slope roofs.
A typical roof has three layers a felt layer and two layers of overlapping shingles.
I have heard that asphalt shingles can be applied on a roof with a pitch as low as 2 12 as long as a rubberized asphalt eaves membrane is installed under the shingles.
No homeowner or building owner looks forward to it installing a new roof.
How to install roll roofing on low slope roofs.
If you have a low slope roof this is especially important.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
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Low slope roofing material choices.
It has just one layer so it goes.
How to install asphalt shingles on low slope roofs.
Roll roofing is different.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Low slope roofs with gaf asphalt shingles.
The cabo one and two family dwelling code permits the installation of asphalt shingles on roofs with a slope as low as 2 12 if the shingles are double coverage self sealing versions.
With respect to shingle application roof slopes from 2 12 to less than 4 12 18 5 are called low slope roofs while roof slopes of 4 12 or greater are called normal or standard slopes.
Asphalt shingles are an effective roof covering material for sloped roofs that can be successfully used on slopes as low as 2 12.