Bitumen Roof Sheathing Cover

Drive cap nails 6 to 8 inches apart in rows along the top and bottom of the sheets.

Bitumen roof sheathing cover.

Sheathing membrane breather type paper astm d 4869. The typical thickness range for sheathing is 3 8 to 3 4 inch. Asphalt saturated organic roofing felt can 2 51 32. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame.

Apply extra heavy typically 43 pound roofing felt over the sheathing old roof or the insulation. Tear off roof remove existing roofing material roof paper vent jacks and flashing and gutters if needed. Sweep area clean of all nails staples. 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.

Unless otherwise recommended by the sheathing manufacturer cover the sheathing with shingle underlayment felt to minimize exposure to weather. 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. Plywood roof sheathing 15 32 inch thick approximate weight. A self adhering polymer modified bitumen roofing underlayment thin rubber sheets with.

Sheathing should be a minimum of 19 32 inch thick. A level b roof cover the roof cover must be one of the following accepted roof cover types. United roofing gator skin synthetic roof underlayment 42 in x 285 8 ft 1 000 sq ft synthetic roof underlayment. 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.

Perlite board insulation cover board per inch of thickness. 8d ring shank nails should be used instead. Standard specification for asphalt saturated organic felt used in roofing waterproofing csa 123 3. Roof underlayment test compliance astm d 226.

Never attach roof sheathing with staples. Apa the engineered wood. If you install the smooth product cover it with aluminum coating. Standard specification for asphalt saturated organic felt underlayment used in steep slope.

Apa the engineered wood association. Bitumen roof advantages and disadvantages. 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. Osb roof sheathing 7 16 inch thick approximate weight.

One of the longer lasting roofing options for flat roofs is bitumen roofing or a modified bitumen roof.