Section r301 2 1 requires that asphalt shingles be designed in accordance with section.
Asphalt shingle roof specifications.
Astm d 4586 standard specification for asphalt roof cement asbestos free.
Asphalt shingles can be installed on roof slopes of 2 12 to 4 12 if special procedures are followed for underlayment see details at roofing underlayment best practices or see comments on page 54 in the printed text best practices guide.
This type of roof shingle consist of a fiberglass mat saturated on both sides with hot asphalt.
The series highlights our popular duration shingles along with up to 7 other duration styles depending on where you live that feature unique performance characteristics.
Yes meets astm d3462 requirements.
Here s a closeup view of an asphalt roof shingle.
Astm d 4869 standard specification for asphalt saturated organic felt shingle underlayment used in roofing.
Astm e 108 standard test methods for fire tests of roof coverings.
Astm c 1549 standard test method for determination of.
4 per shingle minimum 6 per shingle in high wind areas and the coast line.
Or stapled with crown width length per manuf.
The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles.
More than 70 of all houses in north america are covered in asphalt roof shingles.
Low slope roof specifications for asphalt shingle roofs.
Roofs with slopes greater than 4 12 require only one layer of underlayment.
Size and thickness of a quarter spots of asphalt plastic cement placed under the shingle 51 mm 2 inches above the bottom edge and equally spaced along the shingle.
Duration series shingles are unrivaled by any other architectural shingles because they feature our patented surenail technology a technological breakthrough in shingle design.
1 2 references continued standards and building codes.
Let owens corning help you determine when it is time for a new roof and then let us help you choose the shingles for your roof that are right for you.
Furnish and install new aluminum coil stock to cover all fascia and roof trim.
Verify color with owner.
The irc permits the installation of asphalt shingles on continuous sheathing for roofs with slopes as low as 2 12.
Asphalt shingles continue to be the most widely installed roof covering option in north america.
Seal down each shingle at time of application with three 25 mm 1 inch diameter approx.
Roofing nails long note.
We can even help you find a professional to install it.
The top surface of the shingle includes a granule mineral coating.
When this covering is installed on roofs sloped between 2 12 and 4 12 two layers of underlayment are required.
Experience the total owens corning roofing system and high quality roofing shingles.
