DensDeck® Prime Roof Board

    An exceptional fire barrier, thermal barrier, and re-cover board with a pre-primed surface to make the bond even stronger.

    DensDeck® Prime Roof Board overview

    Why DensDeck® Prime Roof Board?

    The patented DensDeck® design employs glass mat facings front and back that are embedded into a water resistant and moisture resistant treated gypsum core, providing excellent fire resistance, moisture resistance, and wind uplift properties. 

    The unique construction of DensDeck® Prime Roof Boards provides excellent flute spanning and will help stiffen and stabilize the roof deck. 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, fiberboard, and perlite insulation.

    Size
    1/4" Dens-Deck® Prime™
    R-Values 0.28 [Tested in accordance with ASTM C518 (heat flow meter)]
    Flexural Strengths, Parallel, lbs. min. ≥ 40 (178) [Tested in accordance with ASTM C473, method B]
    Thicknesses .25" (6 mm)
    Weights, nom. lbs. / sq. ft. 1.2 lb. / (5.9 sq. ft.)
    Bending Radiuses 4' (1,219 mm)
    Permeance Perms >30 (>1,710) [Tested in accordance with ASTM E96 (dry cup method)]
    Flute Spanabilities 2.63" (66.8 mm) [Tested in accordance with ASTM E661 (400 lb. conc. load)]
    1/2" Dens-Deck® Prime™
    R-Values 0.56 [Tested in accordance with ASTM C518 (heat flow meter)]
    Flexural Strengths, Parallel, lbs. min. ≥ 80 (356) [Tested in accordance with ASTM C473, method B]
    Thicknesses .50" (13 mm)
    Weights, nom. lbs. / sq. ft. 2.0 lb. / (9.8 sq. ft.)
    Bending Radiuses 6' (1,829 mm)
    Permeance Perms >23 (>1,300) [Tested in accordance with ASTM E96 (dry cup method)]
    Flute Spanabilities 5” (127 mm) [Tested in accordance with ASTM E661 (400 lb. conc. load)]
    5/8" Dens-Deck® FireGuard Type X
    R-Values 0.67 [Tested in accordance with ASTM C518 (heat flow meter)]
    Flexural Strengths, Parallel, lbs. min. ≥ 100 (444) [Tested in accordance with ASTM C473, method B]
    Thicknesses .63" (15.9 mm Fireguard® type X)
    Weights, nom. lbs. / sq. ft. 2.5 lb. / (12.2 sq. ft.)
    Bending Radiuses 8' (2,438 mm)
    Permeance Perms >17 (>970) [Tested in accordance with ASTM E96 (dry cup method)]
    Flute Spanabilities 8" (203.2 mm) [Tested in accordance with ASTM E661 (400 lb. conc. load)]

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