Roof Overlay Board

An excellent fire barrier densdeck roof boards feature a noncombustible core and inorganic surface that offer greater fire protection than other conventional commercial roofing products when applied over combustible roof decks and steel decks.

Roof overlay board.

Securock roof boards are a portfolio of high performance roof boards to meet the needs of your low slope commercial roofing project. Shown to withstand delamination deterioration warping and job site damage far more effectively than paper faced gypsum board and other conventional roofing products such as wood fiberboard and perlite certified by ul for use as a fire barrier over combustible. In general overlaying a new roof takes less time less labor and thus less money. Just be aware that the extra layer of shingles will add to the cost of your next roof replacement.

It is an acceptable practice to install a new roof over an existing roof membrane system provided that the roof deck is structurally sound and has been properly prepared to support the added load. Each type of roof board is uniquely designed to help protect your roof when used as a fire barrier thermal barrier coverboard recoverboard or parapet wall. However this can only be done once. For this example a section of roof is 20 feet wide.

Densdeck stormx prime roof board this gypsum cover board is enhanced with a coated glass mat facer that achieves fm vsh approval rating with adhered 60 or 80 mil smooth back jm tpo membrane and standard jm tpo membrande adhesives when 4 x4 panels are adhered in low rise foam adhesive using the ribbon application with 12 o c. The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1. Ideal for flat roof repair and refurbishment projects watch our new rockwool flat roof overlay board video to find out more. This has advantages and disadvantages and each of those should be weighed carefully.

Ideal for re roof applications or as a new substrate for a modified bitumen or bur roofing membrane asphaltic cover boards are dimensionally stable providing strength and durability. Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion. Shorter work timeline an overlay can be finished days sooner than a tearoff. Access the roof using an extension ladder.

If you re planning on completely replacing your roof within the next five to 10 years an overlay is a practical way to enjoy the look of a new roof in the meantime. When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material.