Roof Cover Board Weight

A built up roof for example will typically include the built up membrane itself with or without gravel as well as some kind of insulation and cover board which will vary in thickness from roof to roof.

Roof cover board weight.

Rigid roof insulation board. 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. Structodek hd with primed red coating is a high density wood fiber roof cover board with a proprietary red primer on two sides that provides an optimal bonding surface for single ply adhesives hot asphalt and unlike other wood fiber boards firestone mb cold adhesive. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary.

A typical 0 5 thick hd polyiso roof cover board has an r. There are times that a roof system will choose not to have a cover board installed for a few reasons. Densdeck roof board. Insulation cover boards training and education take advantage of industry leading training and education though care the center for the advancement of roofing excellence.

The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1. It s light weight provides ease of handling. Hd polyiso roof cover boards provide the protection of traditional material options with the added performance of thermal insulation. Cover boards can also be used in re roof applications where the board is installed directly on an existing roof system to provide a suitable substrate for the new roof system.

Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion. 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. It can be used with single ply roof systems as well as bur and mod bit. Cover boards protect the underlying insulation from roof traffic and can allow the roof area to be used for renewable energy systems such as rooftop pv.