1 2 Roof Cover Board

According to the national roofing contractors association nrca roof cover boards are critical for functional roof assemblies with good reason.

1 2 roof cover board.

Per 4 x 8 board it s a fraction of the weight of gypsum cover boards. They enhance a membrane roof system in several ways preventing or minimizing the potential damage that may occur during inclement weather. 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. Stagger the cover board and insulation joints.

Summarizes the advantages related to the construction process and cost benefits when including a cover board. Prices promotions styles and availability may vary by store and online. Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the calorimeter requirements for conventionally insulated decks. Energyguard hd has an r value of 2 5 the highest of any cover board and at 11 lb.

Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion. Inventory is sold and received continuously. The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1. Fiberboard insulation is manufactured in standard boards that measure 2 feet by 4 feet.

The thermal resistance at a 2 inch thickness is an r value of 5 26. It is available in thicknesses of 1 2 inch to 3 inches with 1 2 inch increments in between. Tested in accordance with astm e84 its surface burning characteristics are flame spread 0 and smoke developed 0. And states the roof system types specialty systems and attachment options that can be utilized specifically with.

Explains how the forces of nature affect roof function and durability. 1 2 x 4 x 8 fiberboard roof substrate. Commercial roof cover board performance. Isogard hd cover board provides the highest thermal performance of any 1 2 insulation cover board product on the market and it is resistant to extreme weather conditions.

It s light weight provides ease of handling. View return policy. It is commonly used as a top layer over polyisocyanurate insulation. To ensure cover boards are installed correctly.

Many are fastened directly down into the deck or they can be adhered to insulation with low rise foam adhesive or hot asphalt. Cover boards are installed directly under the membrane and above the insulation. Rigid roof insulation board. The course discusses the evolution of roofing cover boards.

Shown to withstand delamination deterioration warping and job site damage far more effectively than paper faced.