Perlite Board For Built Up Roof

Properly installed energyguard perlite roof insulation is suitable for use.

Perlite board for built up roof.

The minimum recycled content is 25 by weight. Excellent for transitioning from membrane to nailer or transitioning from tapered fesco tapered enrgy 3 or tapered fesco foam panels to the roof level to help promote positive drainage. Fescant plus cant strips. Built up roofing may then be immediately applied by flood coating the surface with hot asphalt.

Bitumized perlite is an excellent material for repair of existing roofs as it can usually be applied over structurally sound roofs that have been swept clean of loose debris and coated with a cold asphalt adhesive layer. When it comes to estimating the weight of an existing roof field verification of the in place construction is necessary. Energyguard perlite roof insulation is available in 2 x 4 610 mm x 1 22 m and 4 x 4 1 22 m x 1 22 m boards in standard thicknesses of 3 4 1 11. 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.

Homogenous board composed of expanded perlite particles selected binders and cellulose fibers which give energyguard perlite roof insulation its insulating efficiency. 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. Economical base for reroofing. Lower installed cost than tear offs.

Perlite is also a fibrous insulation board that contains both inorganic and organic materials. Rigid roof insulation board. The surface is treated to reduce bitumen absorption ensuring proper adhesion of roof membranes. Even though the r value of perlite is low it is often used as a component in multi layered systems or as a cover board in built up and modified bitumen membrane roof systems.

This specification covers the composition and physical properties for perlite thermal insulation board used principally above structural roof decks and as a base for built up modified and elastomeric membrane roofing in building construction. Perlite is a volcanic glass that expands due to the water content in the ore the material is often processed with wood fibers and binders to produce rigid boards. It s light weight provides ease of handling. Energyguard perlite roof insulation is designed to be used directly over structural roof decks.

The inorganic materials are expanded silicaceous volcanic glass which is added to organic wood fibers and bonded with asphaltic binders. Perlite also changes dimensions when it becomes wet. It is also widely used as a separation board over existing roofs in recover installations.