Roof Overlay Board

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.

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. Ideal for flat roof repair and refurbishment projects watch our new rockwool flat roof overlay board video to find out more. Shorter work timeline an overlay can be finished days sooner than a tearoff. For this example a section of roof is 20 feet wide.

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. This has advantages and disadvantages and each of those should be weighed carefully. In general overlaying a new roof takes less time less labor and thus less money. 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.

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. 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. Count on iko for the best in asphaltic cover boards. The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1.

Access the roof using an extension ladder. However this can only be done once. Measure each section of the roof from side to side parallel to the line of the fascia board. Just be aware that the extra layer of shingles will add to the cost of your next roof replacement.

Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion. Securock roof boards are a portfolio of high performance roof boards to meet the needs of your low slope commercial roofing project.