Higher wind uplift ratings have been achieved by numerous membrane manufacturers using densdeck prime roof boards in their fm approved con struction designs.
1 4 densdeck prime roof board.
Learn how adding a densdeck prime or densdeck stormx prime roof board to your roof assembly can help thwart the common damage inflicted by water wind fire puncture and more.
1 4 6 35 mm densdeck prime roof board has been tested at fm approvals for 60 psf and 90 psf wind uplift for bur epdm thermoplastics and modified bitumen roof systems.
The 1 architecturally specified fiberglass mat gypsum roof cover board for nearly 30 years 1.
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Long term fire protection of roofing systems is a key concern of the design authority code officials and building owners.
Tested in accordance with astm e84 its surface burning characteristics are flame spread 0 and smoke developed 0.
The course discusses the evolution of roofing cover boards.
Densdeck prime and densdeck duraguard roof boards had flame spread 0 smoke developed 0.
Additionally densdeck prime has been shown to withstand de lamination deterioration warping and jobsite damage more effectively than roofing membrane substrates such as paper faced gypsum board.
The unique construction of densdeck prime roof boards provides excellent flute spanning and will help stiffen and stabilize the roof deck.
2 hour moistureabsorption moisturegainedfrom50 to 90 relativehumidity 1 2 paper faced gypsum board hd fiberboard 3 4 perlite 1 2 perlite 1 4 densdeck roof board 943 1 4 densdeck duraguard roof board 1500 3 919 4 350 compressivestrength maximumpsi 1 2 paper faced.
Densdeck roof boards are fm tested and approved as the only 1 2 gypsum product to meet the calorimeter requirements for conventionally insulated decks.
Superior dimensional stability over competitive gypsum fiber boards is due to their low coefficient of thermal and hygrometric expansion.
Summarizes the advantages related to the construction process and cost benefits when including a cover board.
Explains how the forces of nature affect roof function and durability.
Densdeck roof board 12 64 2 83 4 12 1 86 4 44 2 58 41 18 max.
Rs 5594 densdeck 2 20 v1 indd created date.
Densdeck roof board glass mat faced gypsum cover board.
Technical information on this data sheet is intended to be used as a general.
The greatest risks to roofs aren t always seen.
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