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Homasote Co.
Recycled Building Products\Roof Deck
Firestall Roof Decking
Recycled Building Products\Roof Deck
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DESCRIPTION
Firestall Roof Decking is a nailable UL Class "A" fire rated structural roof decking. It is made of 1 to 4 plies of Homasote structural board and a face ply of NCFR Homasote.
USES
Firestall Roof Decking is designed for use as a structural load bearing decking in residential and commercial buildings that require a Class A (25 flame spread) rated decking. It can be applied over either steel or wood framing or structural steel deck and provides a nailbase surface to attach additional insulation, shingles and other finish roofing.
Firestall Roof Deck complies with 1993 BOCA National Building Code Section 2310.2, Fire retardant-Treated Wood.
Extended ASTM E-84 Fire Test Method, Factory Mutual Research Report J.1. 1R9Q9.AC.
SIZES, WEIGHTS & THERMAL RESISTANCE
Thickness |
Size |
Weight |
R-Value |
1.0" |
2' x 8' (23 x 1/8" x 95-7/8" actual) |
2,63 |
2.05 |
1-3/8" |
3.48 |
2.5 |
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1-7/8" |
4.63 |
3.1 |
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2-3/8" |
5.78 |
4.9 |
2' Edge Square
8' Edge T & G
LOAD TABLE
Load Table |
Maximum Rafter Spacing for live loads of: |
Panel Thickness |
50 PSF |
1" |
24" |
1-3/8" |
32" |
1-7/8" |
48" |
2-3/8" |
48" |
- Load Table calculations are based on 2 or more continuous spans.
- 10 PSF dead load assumed
TYPICAL PHYSICAL PROPERTIES
|
440 Surface |
NCFR Surface |
Density, lbs./ft. |
26-28 |
34-40 |
Tensile Strength, PSI |
450 - 700 |
400 - 700 |
Hardness, lb. (Janka Ball) |
230 |
275 |
Water
Absorption
by vol.
(Max.) |
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Expansion
from 50% -
90% |
0.25% |
0.30% |
Flame Spread (NCFR surface) |
Class I (or A) |
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Noise Reduction Coefficient |
20 |
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ARCHITECTURAL SPECIFICATION
(Short Form)
All structural Roof Panels shall be_______thick Firestall Roof Decking as manufactured by the Homasote Company, West Trenton, NJ, made of a composition of Homasote structural board and a face ply of UL Class A NCFR Homasote. All panels shall be installed in accordance with current Homasote Company Instructions.