Manufactured and tested for use in recover applications.
Roofing recovery board definition.
It is treated for surface retention of bitumen and available in 2 x 4 0 6m x 1 2m 4 x 4 1 2m x 1 2m and 4 x 8 1 2m x 2 4m with a nominal thickness of 1 2 13mm.
The building is more susceptible to hail fi re and wind damage.
The installation of a new roofing system over an existing roof is if viable an alternative approach to roof replacement.
We all know how drawn out and expensive the traditional method can be.
The cover board should be secured to the bottom layer of insulation in a full and even application of hot asphalt applied at a rate of 30 pounds per square or specially formulated adhesive.
These roofing systems depend on proper installation for successful performance.
In addition national roofing contractors association nrca has issued bulletins over the years recommending the use of cover boards to minimize damage to polyiso.
Any rotten or damaged boards must be replaced before applying new shingles.
Energyguard perlite recover board is a heavy duty 1 2 thick perlite roof insulation board composed of expanded perlite cellulose binders and waterproofing agents.
To prevent blistering with built up roof membranes bur and to provide a separation layer and flat surface in re cover situations.
Cover boards should be set over the bottom layer of insulation.
A cover board is a thin substrate to which a roof membrane is adhered.
Specifically developed for use on flat roof refurbishment projects hardrock multifix recovery board is a non combustible board compatible with all commonly used flat roof membranes including single ply epdm bitumen and liquid applied systems.
Using recovery board foam provides a protective covering and insulation to help reinforce and strengthen any roof.
Without a cover board the roof is missing added durability.
A recover application where the board is installed directly to an existing roof system to provide a suitable substrate for the new roof system.
Acfoam recover board is used in built up bur modified bitumen mechanically attached single ply and adhered single ply roofing systems.
Insulation can be flammable so installing a cover board can help deter the spread of fire from outside the building to the insulation and into your building.
Fully adhered cover boards should be applied in accordance with proper roofing procedures.
However the use of a cover board far exceeds that of a substrate it also serves as a critical component that helps to extend the life of a roof.
Cover boards have historically had two uses.
