The slope of the roof is measured by the vertical rise of the roof to the horizontal run and is expressed as a fraction.
Roof slope limits for architect 80 shingle.
They provide excellent weather resistance great value and now more than ever a tremendous range of beautiful designs and color blends.
Secure the shingle to the roof deck with fasteners as recommended by the roofing manufacturer.
Is a 30 degree slope and 7 12 pitch correct for.
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.
The roof design is all hip.
No you cannot install metal shingles on a low slope roof.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
Installation on roof slopes below a 2 in 12 pitch is not recommended at all.
A couple of weeks ago we published a two part series showing how a local roofing contractor shingled a roof with architectural shingles.
Use on roofs with slopes greater than 2 per foot.
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.
Low slope applications 2 to 4 per foot require additional underlayment.
A 4 12 roof slope means the roof rises 4 feet.
We do install shingles on these in between pitches but special application measures must be taken in this middle ground.
This roof shingle calculator requires four basic inputs.
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.
The maximum slope considered suitable for normal shingle application is 45 degrees or 12 per foot.
There are also 29 standard sized shingles measuring 12 inches by 36 inches in each one of these.
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.
Roof length measured in feet roof width measured in feet roof pitch.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
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.
Normal shingle installation is allowed for all roofs with a pitch of 4 12 and above.
Asphalt shingles can only be used on roof slopes of two units vertical in 12 units horizontal 2 12 or greater.
If a roof slope exceeds this limitation the shingles should be applied by the following recommended method complying with astm d4586.
What is roof slope and does it limit the choice of shingles.
With that as background you are now ready to estimate how many shingles you will purchase for your roof project.
Low sloped roof shingle installation.
