Roof Underlayment Moisture Barrier Installation Instructions

Some suppliers recommend staples about every 4 inches.

Roof underlayment moisture barrier installation instructions.

Overlay a second. Lay lines are provided on the product. Install two layers of roofpro underlayment apply a 20 3 4 527mm strip of underlayment parallel with and starting at the eaves. Roofing underlayments installation guidelines.

Asphalt saturated felt starting at the eaves and lapping upper courses over lower by a minimum of 2 inches. Starting at the eaves apply a 39 3. Remove wrinkles and flatten surface of shingle underlayment before. 8 1m wide sheet of underlayment overlapping successive sheets 20 3 4 527mm.

Leave the top portion of the paper loose. For synthetic underlayments it s best to follow the installation instructions provided by the product s manufacturer. According to manufacturer s instructions and tyvek. B along the eaves and in the valleys install the leak barrier before installing deck armor roof deck protection.

Underlayment for protection against excessive moisture prior to roofing. On roofs with a slope of 4 12 or greater use a single layer of 15 lb. Always follow safe roofing practices and osha safety requirements. Follow gaf leak barrier published application instructions.

Rhinoroof u20 installation instructions rhinoroof u20 is a water and vapor barrier and therefore must be installed above a properly ventilated space s. Ensure that the space beneath the roof sheathing is properly ventilated before installing to avoid condensation problems. Follow all building codes applicable to your geographical region and structure type as it is considered a vapor barrier. Here are some more generic tips for applying underlayment.

Tyvek protec is a vapor barrier. Professional grade synthetic roofing underlayment udl30 installation instructions titanium udl30 is an air water and vapor barrier 06 perms and therefore should be installed above a properly ventilated space s. It is recommended to follow all building codes applicable to your geographical region and structure type. If any edge swelling occurs prior to roof underlayment installation all raised joints should be sanded flat.

C along the rake install deck armor roof deck protection leaving 6 8 152 mm 203 mm minimum of the deck exposed and then install. Slopes 2 12 up to 4 12. Put fasteners at least every 8 inches. Rhinoroof u20 is up to12 times stronger than 30 felt and offers excellent wind resistance and durability through heavy roof traffic and adverse weather conditions.

Vertical joints should lap a minimum of 4 inches and be offset by at least 6 feet in successive rows see figure 2 2 at left. Use a construction stapler or a hammer.