Roof Board Weight

Densdeck roof boards are utilized in a wide variety of roofing systems for new and re roofing applications as gypsum roof cover boards and thermal barriers.

Roof board weight. The greatest risks to roofs aren t always seen. 1 4 spans flute widths up to 2 5 8. Sitka spruce douglas fir and southern yellow pine. 2 tested in accordance with astm c473 method b.

Composed of a closed cell polyisocyanurate foam core bonded in the foaming process to 1 2 thick duraboard an expanded perlite mineral aggregate board on one side and a fiber glass reinforced facer on the other. The weight of roofing constructions above the truss rafter may be estimated with the calculator below. Oriented strand board osb com ply. Typical physical properties test astm densdeck roof board 6 4 mm 12 7 mm 5 8 15 9 mm strength compressive strength psi kpa nom c 473 900 6 205 flexural strength lb parallel min c 473 40 80 100 bending radius ft m max na 5 1 5 8 2 4 12 3 6 moisture.

The table provides the weight of lumber produced from three commonly used tree species. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. It s light weight provides ease of handling. Rigid roof insulation board.

1 4 dens deck roof board. Securock roof boards are a portfolio of high performance roof boards to meet the needs of your low slope commercial roofing project. 0 80 mm steel sheet. Each type of roof board is uniquely designed to help protect your roof when used as a fire barrier thermal barrier coverboard recoverboard or parapet wall.

Actual weight may vary based on manufacturing location and other factors. None asphalt roll roofing 1 1 lb m ft 2 5 4 kg m 2 asphalt shingle or asphalt fiberglass composite shingle 2 7 lb m ft 2 13 2 kg m 2. R values 28 tested in accordance with astm c518 spannings. Densdeck roof boards can replace any generic type x gypsum board in any roof assembly in the ul fire resistance directory under the prefix.

The following table provides the approximate weight dead load self weight per linear foot of the various sizes of dimensional lumber also called structural lumber or finished lumber used in building construction in the us.