Bitumen Roof Sheathing Cover

Asphalt saturated organic roofing felt can 2 51 32.

Bitumen roof sheathing cover.

Never attach roof sheathing with staples. Unless otherwise recommended by the sheathing manufacturer cover the sheathing with shingle underlayment felt to minimize exposure to weather. Tear off roof remove existing roofing material roof paper vent jacks and flashing and gutters if needed. A self adhering polymer modified bitumen roofing underlayment thin rubber sheets with.

Learn how to resurface a flat roof with modified bitumen also known as rubber roofing. Modified bitumen is a type of asphalt product that can be applied in a number of ways to the roof in both hot and cold temperatures. Standard specification for asphalt saturated organic felt used in roofing waterproofing csa 123 3. A level b roof cover the roof cover must be one of the following accepted roof cover types.

Use shingle underlayment felt conforming to astm d226 type i astm d4869 type i or astm d6757 self adhering polymer modified bitumen sheet underlayment should conform to astm d1970 or check roofing. United roofing gator skin synthetic roof underlayment 42 in x 285 8 ft 1 000 sq ft synthetic roof underlayment. Sheathing membrane breather type paper astm d 4869. Sturdy dek is designed to be used as a base material in flat or low slope roofing it may be installed over wood concrete rigid insulation or as a recover sheet over an existing roof surface.

Drive cap nails 6 to 8 inches apart in rows along the top and bottom of the sheets. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Apa the engineered wood association. Sweep area clean of all nails staples.

Standard specification for asphalt saturated organic felt underlayment used in steep slope. Osb roof sheathing 7 16 inch thick approximate weight. Apa the engineered wood. Roof underlayment test compliance astm d 226.

Sheathing should be a minimum of 19 32 inch thick. 8d ring shank nails should be used instead. Bitumen roof advantages and disadvantages. Plywood roof sheathing 15 32 inch thick approximate weight.

The typical thickness range for sheathing is 3 8 to 3 4 inch. Perlite board insulation cover board per inch of thickness. If you install the smooth product cover it with aluminum coating. Apply extra heavy typically 43 pound roofing felt over the sheathing old roof or the insulation.

Applied over all joints in the roof sheathing to.