Roof Slope Limits For Architect 80 Shingle

What is roof slope and does it limit the choice of shingles.

Roof slope limits for architect 80 shingle.

A 4 12 roof slope means the roof rises 4 feet. Use on roofs with slopes greater than 2 per foot. Asphalt shingles continue to be the most widely installed roof covering option in north america. Asphalt shingles can only be used on roof slopes of two units vertical in 12 units horizontal 2 12 or greater.

They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends. Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above. There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these. No you cannot install metal shingles on a low slope roof.

For budget conscious homeowners metal shingles will run about 7 to 10 per square foot installed while corrugated metal sheets can be installed for 3 50 to 5 50 per square foot for materials and labor. If 4 12 and above is normal and 2 12 is minimum what about properties with roofs in between the two such as a 3 12 pitched roof. The roof design is all hip. This article discusses best roofing practices for the installation of asphalt roof shingles including installation temperature shingle sealing methods shingle course offsets asphalt shingle nailing location and specifications low slope and steep slope limits for asphalt shingles and roof flashing at building eaves and around skylights.

Secure the shingle to the roof deck with fasteners as recommended by the roofing manufacturer. This roof shingle calculator requires four basic inputs. In areas where icing along eaves can cause the back up of water apply certainteed winterguard waterproofing shingle underlayment or its equivalent according to. Is a 30 degree slope and 7 12 pitch correct for.

What is the minimum slope for an asphalt shingle roof. The asphalt shingle manufactures recommend that you install asphalt shingles on a recommended minimum of 4 in 12 or greater however most manufactures will warrant their shingles down to a 2 in 12 pitch if the recommended installation method is used. The slope of the roof is measured by the vertical rise of the roof to the horizontal run and is expressed as a fraction. This project guide is a combination of those two articles and it covers replacing the existing roof decking installing underlayment and ice dam protection laying the first row laying shingles in the field flashing ridge shingles and vents and more.

If a roof slope exceeds this limitation the shingles should be applied by the following recommended method complying with astm d4586. Installation on roof slopes below a 2 in 12 pitch is not recommended at all. Low sloped roof shingle installation. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.

We do install shingles on these in between pitches but special application measures must be taken in this middle ground. The maximum slope considered suitable for normal shingle application is 45 degrees or 12 per foot. With that as background you are now ready to estimate how many shingles you will purchase for your roof project. Normal roof slope for typical installation.