Roofing Recovery Board Definition

We all know how drawn out and expensive the traditional method can be.

Roofing recovery board definition. A cover board is a thin substrate to which a roof membrane is adhered. 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. In addition national roofing contractors association nrca has issued bulletins over the years recommending the use of cover boards to minimize damage to polyiso. For best roof performance consider re decking board roof decks with a layer of apa the engineered wood association grade plywood before installing new shingles there are more than two layers of existing shingles on the roof.

Any rotten or damaged boards must be replaced before applying new shingles. Without a cover board the roof is missing added durability. The installation of a new roofing system over an existing roof is if viable an alternative approach to roof replacement. The building is more susceptible to hail fi re and wind damage.

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. Recovery board is designed to save people time and money when it comes to redoing a roof. Cover boards have historically had two uses.

Acfoam recover board is used in built up bur modified bitumen mechanically attached single ply and adhered single ply roofing systems. Manufactured and tested for use in recover applications. Cover boards should be set over the bottom layer of insulation. To prevent blistering with built up roof membranes bur and to provide a separation layer and flat surface in re cover situations.

Energyguard perlite recover board is a heavy duty 1 2 thick perlite roof insulation board composed of expanded perlite cellulose binders and waterproofing agents. Using recovery board foam provides a protective covering and insulation to help reinforce and strengthen any roof. A recover application where the board is installed directly to an existing roof system to provide a suitable substrate for the new roof system. 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 major advantage to this approach known as recovering is the cost savings associated with not having to remove and dispose of the existing roof membrane.