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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