Asphalt Shingle Roof Specifications

Roofs with slopes greater than 4 12 require only one layer of underlayment.

Asphalt shingle roof specifications.

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. We can even help you find a professional to install it. Astm c 1549 standard test method for determination of. Seal down each shingle at time of application with three 25 mm 1 inch diameter approx.

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. Roofing nails long note. Yes meets astm d3462 requirements. All shingles shall be installed by galv.

Experience the total owens corning roofing system and high quality roofing shingles. 1 2 references continued standards and building codes. This type of roof shingle consist of a fiberglass mat saturated on both sides with hot asphalt. More than 70 of all houses in north america are covered in asphalt roof shingles.

Low slope roof specifications for asphalt shingle roofs. Find gaf s specifications for timberline hdz here. Owens corning produces high quality asphalt coating asphalt sealants and adhesives for asphalt shingles. Duration series shingles are unrivaled by any other architectural shingles because they feature our patented surenail technology a technological breakthrough in shingle design.

When this covering is installed on roofs sloped between 2 12 and 4 12 two layers of underlayment are required. The short simple answer is 2 12 has traditionally been considered the absolute minimum acceptable roof slope suitable for asphalt shingles. Astm e 108 standard test methods for fire tests of roof coverings. Verify color with owner.

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. 4 per shingle minimum 6 per shingle in high wind areas and the coast line. Furnish and install new aluminum coil stock to cover all fascia and roof trim. Astm d 4869 standard specification for asphalt saturated organic felt shingle underlayment used in roofing.

The irc permits the installation of asphalt shingles on continuous sheathing for roofs with slopes as low as 2 12. 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. Section r301 2 1 requires that asphalt shingles be designed in accordance with section. Astm d 4586 standard specification for asphalt roof cement asbestos free.

Asphalt shingles continue to be the most widely installed roof covering option in north america.