Roof Overlay Board

The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1.

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. In general overlaying a new roof takes less time less labor and thus less money. When you overlay a new roof you attach the new shingles or other roofing material to the existing roofing material. 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.

This has advantages and disadvantages and each of those should be weighed carefully. 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. For this example a section of roof is 20 feet wide. 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.

Shorter work timeline an overlay can be finished days sooner than a tearoff. 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. Iko offers protectoboard which is composed of a mineral fortified asphaltic core between two non woven glass fiber mats. Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion.

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. 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. Access the roof using an extension ladder.

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. 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.