Bitumen Roof Sheathing Cover

Apply extra heavy typically 43 pound roofing felt over the sheathing old roof or the insulation.

Bitumen roof sheathing cover.

A level b roof cover the roof cover must be one of the following accepted roof cover types. Drive cap nails 6 to 8 inches apart in rows along the top and bottom of the sheets. Perlite board insulation cover board per inch of thickness. Sheathing membrane breather type paper astm d 4869.

The typical thickness range for sheathing is 3 8 to 3 4 inch. 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. Standard specification for asphalt saturated organic felt underlayment used in steep slope. Standard specification for asphalt saturated organic felt used in roofing waterproofing csa 123 3.

Learn how to resurface a flat roof with modified bitumen also known as rubber roofing. Plywood roof sheathing 15 32 inch thick approximate weight. Osb roof sheathing 7 16 inch thick approximate weight. Sheathing should be a minimum of 19 32 inch thick.

Roof underlayment test compliance astm d 226. Sweep area clean of all nails staples. Never attach roof sheathing with staples. If you install the smooth product cover it with aluminum coating.

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. Roof sheathing comes in grid marked 4 by 8 foot sheets and should be installed perpendicular to the frame. Asphalt shingle roof debris disposal costs to load and haul away old materials installation waste and associated debris.

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. Apa the engineered wood. United roofing gator skin synthetic roof underlayment 42 in x 285 8 ft 1 000 sq ft synthetic roof underlayment. Bitumen roof advantages and disadvantages.

A self adhering polymer modified bitumen roofing underlayment thin rubber sheets with. Apa the engineered wood association. 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. 8d ring shank nails should be used instead.

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