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Firestall Roof Deck

  • Where to Use

    Can be applied over either steel or wood framing or structural steel deck.

    Provides a nailbase surface to attach additional insulation, shingles and other finish roofing

  • Installation Instructions
  • Physical Properties
    ThicknessSizeWeightR Value
    1.0"2' x 8'2.62 lbs./sq.ft.2.05
    1-3/8"2' x 8'3.48 lbs./sq.ft.2.5
    1-7/8"2' x 8'4.63 lbs./sq.ft.3.1
    440 SurfaceNCFR Surface
    Density:26-28 lbs./ft.34-40 lbs./ft.
    Tensile Strength:450-700 psi400-700 psi
    Hardness, Janka Ball (min.):230275
    Water Absorption by vol. (max.):
    2 hrs. immersion
    7%7%
    Expansion from 50%-90%
    Relative humidity (maximum)
    0.25%0.30%
    Flame Spread (NCFR surface)Class I (or A)
    Noise Reduction Coefficient.20

    NOTE: Finished T&G on long edges and square on ends.

    Fire Resistance Ratings

    Method of TestClassFlame SpreadSmoke Developed
    ASTM-E84A205

    Load Table*

    Panel ThicknessMaximum Rafter Spacing for
    live loads of 50 PSF*
    1"24"
    1-3/8"32"
    1-7/8"48"-40" PSF

    * Calculations based on 2 or more continuous spans. 10 PSF dead load assumed.

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  • Code Compliance

    1992 BOCA National Building Code Section 2310.2, Fire retardant-Treated Wood.