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The reinforcing and resin systems of FRP materials must work together to form a useful composite. Glass fiber reinforcements provide strength, stiffness, dimensional stability, heat and impact resistance to the composite.
The plastic matrix (made from a resin system) is a host material to the reinforcing fibers. It functions as a protective binder and as a medium for transferring forces between fibers. It allows reinforcing fibers to perform as a unit in resisting loads. Time dependent properties and ranges of services temperatures of the composite are determined primarily by the resin. |
Tuff Span Building Products are made from engineered fiberglass reinforced plastic (FRP) materials reinforced with continuous aligned straight glass. Continuous glass fiber reinforcements run straight and unbroken the entire length and width of panel, deck, and structural units. These straight fibers reinforce the product along the load paths, just as straight continuous rebar reinforces a concrete beam. This method of reinforcement allows Tuff Span panels to take full advantage of the incredible strength of glass fibers.
The result is a panel that is strong, stiff, and very resistant to leaks and fastener pullover.
Tuff Span materials are formulated with either an isophthalic polyester or vinyl ester resin system.
The polyester resin system, developed specifically for fire retardance, corrosion resistance, and weatherability is designed for use at normal operating temperatures.
The vinyl ester resin system gives superior physical and corrosion resistance properties at elevated temperatures. At 150° F vinyl ester Tuff Span panels retain 92 percent of their room temperature strength.
At room temperature, both products yield basically the same level of performance with vinyl ester having a slight edge |
Tuff Span products demonstrate a flame spread rating of less than 25 when tested per ASTM E-84. The test method relates the rate that flame spreads across a material's surface. The rating is based on a scale from 0 to 100, with asbestos cement board as 0 and select grade medium oak flooring as 100.
On the basis of the Factory Mutual Building Corner Fire Test procedure, Tuff Span Series FM panels meet FM Standard 4880 approval requirements. Factory Mutual has approved these materials for unrestricted use as building cladding. These panels do not require automatic sprinkler protection.
| Roofing & Sliding Panels | ASTM E-84 Rating | Listings / Approvals | |||
| Resin | Series | Smoke | Flame | UL* | FMRC- |
| PFR | 150, 200 | 300 | 25 | Listed | n/a |
| 250 | 300 | 25 | Listed | n/a | |
| 300, 400 | >500 | 25 | Listed | n/a | |
| VFR | 150 | >500 | 25 | Listed | n/a |
| 200,
250 300, 400 |
>500 | 25 | Listed | n/a | |
| 25 | Listed | n/a | |||
| FM | 10, 13, 16 | 450 | 25 | n/a | Approved (Note A) |
| Roof Deck | ASTM E-84 Rating | Listings / Approvals | |||
| Resin | Series | Smoke | Flame | UL* | FMRC† |
| VFR | 500, 700 | >500 | 25 | Listed | Listed (Note B) |
Other Fire Resistance Characteristics
| FM13, FM16 | Class B, maximum slope 3/12 |
E-108
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| PFR300 | Class C, maximum slope 3/12 |
E-108
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| PFR300 | Self-Ignition Temperature: 650-800° F |
D-1929
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| PFR300 | Rate, Extent of Burning: ATB<5, AEB 10mm |
D-635-81
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A. Panels approved by FMRC as roofing/siding with no sprinklers, unlimited heights
B. See page 19 for FM Listed assembly.
*UL - Underwriters Laboratories, Inc.
†FMRC - Factory Mutual Research Center
n/a - Not applicable
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FACTORY MUTUAL WIND UPLIFT CLASSIFICATIONS |
Factory Mutual (FM) Series panel wind uplift classifications and deck
listings are based upon full scale testing on assemblies performed at
the Factory Mutual Research Center.
Tuff Span Roof Decks are Factory Mutual Listed as Class II decks subject
to the conditions described in FM Report J.I. OTOA9AM (see pg. 19).
| TUFF SPAN PANELS | ||||
| Profile | Series | Class | Span | Washer |
| 4.2 | FM 13, 16 | I-60 | 5' 6" | 0.729 |
| 7.2
x 1.5 7.2D x 1.75 7.0 x 1.5 |
FM 10, 13, 16 | I-90 | 5' 6" | 1.125 |
| 7.2
x 1.5 7.2D x 1.75 7.0 x 1.5 |
FM 13, 16 | I-90 | 6' 8" | 1.125 |
| TUFF SPAN ROOF DECKS | ||||
| 6.5 Deck | FM Listed | I-90 | 6' 3" | 0.729 |
| 8.0 Deck | FM Listed | I-90 | 8' 0' | 1.125 |
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A
roofing assembly with Tuff Span 6.5 deck has obtained Factory Mutual
Approval for Class I fire and Class I-90 windstorm classifications.
Call for details.
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UL WIND UPLIFT CLASSIFICATIONS |
| TUFF SPAN ROOF DECKS | ||||
| 6.5 Deck | UL Listed as Construction No. NM523 | Class 90 uplift | ||
| 8.0 Deck | UL Listed as Construction No. NM524 | Class 90 uplift | ||
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Any
numerical flame spread classifications for products referred to
in this publication do not define the hazard presented by this material
under actual fire conditions.
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