USG Securock® Brand Gypsum‑Fiber Roof Board Specs

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      Why USG Securock® Brand Gypsum‑Fiber Roof Board?

      USG Securock® Brand Gypsum-Fiber Roof Board is a high-performance roof board for use in low-slope roofing systems. 

      Its unique fiber-reinforced, homogeneous composition gives the panel strength and water resistance through to the core.

      Benefits

      Benefits of USG Securock® Brand Gypsum-Fiber Roof Board include:
      • Engineered to provide exceptional wind-uplift performance
      • Excellent fire performance
      • Strong moisture and mold resistance
      • Versatile roof board that can be used with many different roofing systems
      • Made from 97% pre-consumer recycled materials
      Size
      1/4" Roof Board
      R-Values0.2
      Flexural Strengths, Parallel, lbs. min.40 (18.14 kg)
      Thicknesses1/4" (6.35 mm)
      Pieces per unit for 4' x 8' (1.21 m x 2.44 m) sheets50
      Weights, nom. lbs. / sq. ft.1.57 (7.66 kg/m²)
      Bending Radiuses25' (7.62 m)
      Permeance Perms30
      Flute Spanabilities2 5/8" (66.7 mm)
      Weights, nom. lbs./unit 4' x 8' (1.21 m x 2.44 m)sheets2,575 (1,168 kg)
      3/8" Roof Board
      R-Values0.3
      Flexural Strengths, Parallel, lbs. min.70 (31.75 kg)
      Thicknesses3/8" (9.53 mm)
      Pieces per unit for 4' x 8' (1.21 m x 2.44 m) sheets40
      Weights, nom. lbs. / sq. ft.1.96 (9.57 kg/m²)
      Bending Radiuses25' (7.62 m)
      Permeance Perms26
      Flute Spanabilities5" (127 mm)
      Weights, nom. lbs./unit 4' x 8' (1.21 m x 2.44 m)sheets2,575 (1,168 kg)
      1/2" Roof Board
      R-Values0.5
      Flexural Strengths, Parallel, lbs. min.110 (50 kg)
      Thicknesses1/2" (12.7 mm)
      Pieces per unit for 4' x 8' (1.21 m x 2.44 m) sheets30
      Weights, nom. lbs. / sq. ft.2.76 (13.47 kg/m²)
      Bending Radiuses25' (7.62 m)
      Permeance Perms26
      Flute Spanabilities8" (203 mm)
      Weights, nom. lbs./unit 4' x 8' (1.21 m x 2.44 m)sheets2,725 (1,236 kg)
      5/8" Roof Board
      R-Values0.6
      Flexural Strengths, Parallel, lbs. min.161 (73 kg)
      Thicknesses5/8" (15.9 mm)
      Pieces per unit for 4' x 8' (1.21 m x 2.44 m) sheets24
      Weights, nom. lbs. / sq. ft.3.20 (15.62 kg/m²)
      Bending Radiuses30' (9.14 m)
      Permeance Perms24
      Flute Spanabilities10" (254 mm)
      Weights, nom. lbs./unit 4' x 8' (1.21 m x 2.44 m)sheets2,525 (1,145 kg)

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