Asphalt Roll Roofing Minimum Slope

This is an inexpensive roofing material often installed over 15 felt underlayment by homeowners and do it yourself ers.

Asphalt roll roofing minimum slope.

Peel and stick roofing asphalt roll roofing torch down roofing. Minimum slope for rolled asphalt roof. 18 43 asphalt shingles with special underlayment requirements 2 in 12. There are differing opinions as to the minimum slope for a roof but the generally accepted minimum is 3 12.

In 12 0 25 in 12 1 19 built up roof coal tar pitch. Ft sbs self adhering cap sheet roll for low slope roofing in shakewood. Metal roof shingles require a minimum roof pitch of 3 12 or greater. 3 12 minimum roof slope for metal roof panels with nonsoldered seams.

Ft sbs self adhering cap sheet roll for low slope roofing in hickory. Active 3 years 2 months ago. Viewed 1k times 1. Have a overhang leantoo built off the garage that was never completed and covered with a tarp.

The slope is 5 in a 12 run. 2 12 minimum roof slope for asphalt shingles photovoltaic pv shingles and building integrated pv. 2 1 2 12 minimum roof slope for clay and concrete tile. Asphalt shingles continue to be the most widely installed roof covering option in north america.

9 46 built up roof asphalt. Roofing material or system. I ve stripped the rotten plywood off and have new osb to install. Minimum required slope x in 12 minimum required slope degrees asphalt shingles.

Owens corning deckseal sa sbs cap 39 375 ft w x 32 833 ft l 100 sq ft shasta white roll roofing. If your roof pitch declines up to 1 inch vertically for every 12 inches horizontally 1 12 pitch it is a good candidate for rolled roofing as long as you use the concealed nail method of fastening. Clay and concrete tile requires a minimum roof pitch of 2 1 2 12 or greater. Otherwise the safest minimum pitch for rolled roofing is 2 inches of decline per 12 inches of horizontal direction 2 12 pitch.

The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Asphalt shingles require a minimum roof pitch of 2 12 or greater. Some people recommend not installing asphalt shingles on slopes below 5 12 but a skilled roofer may well be able to make this work. Minimum required roof slope for roofing materials.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. For steep slope roof systems ibc 2018 provides for a 1 12 minimum roof slope for mineral surfaced roof roll roofing. Asphalt roll roofing installation. By gaf 17 96 79 piece.

This number corresponds to the number of inches of rise in a 12 foot run. Ask question asked 3 years 2 months ago.