Bitumen Roof Sheathing Cover

Bitumen roof advantages and disadvantages.

Bitumen roof sheathing cover.

Sweep area clean of all nails staples. A self adhering polymer modified bitumen roofing underlayment thin rubber sheets with. Standard specification for asphalt saturated organic felt underlayment used in steep slope. Asphalt shingle roof debris disposal costs to load and haul away old materials installation waste and associated debris.

Apply extra heavy typically 43 pound roofing felt over the sheathing old roof or the insulation. Sheathing should be a minimum of 19 32 inch thick. Perlite board insulation cover board per inch of thickness. Roof underlayment test compliance astm d 226.

Applied over all joints in the roof sheathing to. 8d ring shank nails should be used instead. The typical thickness range for sheathing is 3 8 to 3 4 inch. Drive cap nails 6 to 8 inches apart in rows along the top and bottom of the sheets.

Tear off roof remove existing roofing material roof paper vent jacks and flashing and gutters if needed. One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof. Description sturdy dek is a multi ply semi rigid asphaltic panel composed of a mineral fortified asphaltic core formed between two asphalt saturated fiberglass liners and a plastic separator sheet. 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.

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. Asphalt saturated organic roofing felt can 2 51 32. United roofing gator skin synthetic roof underlayment 42 in x 285 8 ft 1 000 sq ft synthetic roof underlayment. Plywood roof sheathing 15 32 inch thick approximate weight.

Apa the engineered wood association. Standard specification for asphalt saturated organic felt used in roofing waterproofing csa 123 3. Osb roof sheathing 7 16 inch thick approximate weight. A level b roof cover the roof cover must be one of the following accepted roof cover types.

Apa the engineered wood. If you install the smooth product cover it with aluminum coating. Learn how to resurface a flat roof with modified bitumen also known as rubber roofing. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Sheathing membrane breather type paper astm d 4869.