1 2 Roof Cover Board

It is commonly used as a top layer over polyisocyanurate insulation.

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 x 4 x 8 fiberboard roof substrate. Per 4 x 8 board it s a fraction of the weight of gypsum cover boards. Rigid roof insulation board.

The thermal resistance at a 2 inch thickness is an r value of 5 26. 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. Fiberboard insulation is manufactured in standard boards that measure 2 feet by 4 feet. The course discusses the evolution of roofing cover boards.

Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the calorimeter requirements for conventionally insulated decks. View return policy. Lightweight and easy to cut and install this high density cover board offers savings from reduced transportation costs labor and material during application. It s light weight provides ease of handling.

It is available in thicknesses of 1 2 inch to 3 inches with 1 2 inch increments in between. 1 aia lu hsw 1 aibd p ce 0 1 iacet ceu. Summarizes the advantages related to the construction process and cost benefits when including a cover board. They enhance a membrane roof system in several ways preventing or minimizing the potential damage that may occur during inclement weather.

Cover boards are installed directly under the membrane and above the insulation. And states the roof system types specialty systems and attachment options that can be utilized specifically with. 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. Many are fastened directly down into the deck or they can be adhered to insulation with low rise foam adhesive or hot asphalt.

Energyguard hd has an r value of 2 5 the highest of any cover board and at 11 lb. To ensure cover boards are installed correctly. The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1. Tested in accordance with astm e84 its surface burning characteristics are flame spread 0 and smoke developed 0.

Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion. With over 80 psi compressive strength and a durable coated glass facer energyguard hd is an ideal board for protecting your roof against the elements. Commercial roof cover board performance. Shown to withstand delamination deterioration warping and job site damage far more effectively than paper faced.

Stagger the cover board and insulation joints.