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With the release of IAPMO-ES Evaluation Report ER 0137 and ICC-ES Evaluation Report ESR 1025, STYRO-STOP expanded polystyrene (EPS) roof insulation can be applied directly over steel roof decks without a thermal barrier as required in the past. IAPMO ER 0137 allows up to 60 mil EPDM/TPO membranes, and ICC ESR 1025 allows up to 45 mil EPDM/TPO membranes to afford you exceptional design flexibility. Enjoy the benefits of permanent high R-Values, superior dimensional stability, and resistance to moisture absorption and physical degradation at a substantial cost savings over other rigid insulation products.
STYRO-STOP is compatible with all major roofing materials and assemblies. It is available in flat, tapered, or compound tapered panels in densities ranging from 1.00 to 2.00 pcf, and is manufactured under strict quality controls. Having completed thorough evaluation for fire safety performance by ICC-ES and IAPMO-ES, STYRO-STOP provides owners, architectural specifiers and contractors the confidence that comes from its recognition by the nation’s most respected code authorities.
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STYRO-STOP has undergone thorough evaluation by ICC-ES and IAPMO-ES for fire safety performance and can be installed directly over steel roof decks in ballasted, mechanically fastened, and fully-adhered roof assemblies.
STYRO-STOP has been approved for use directly over steel roof decks as a component of a Class A, B or C roof covering. Details of the assemblies can be found in the Evaluation Reports below:
- The lowest cost per R-Value of any
rigid insulation board provides high insulating values
that will not diminish over time.
- Superior dimensional stability helps
assure that your roof insulation system remains tight
and energy-efficient, and your membrane fully supported.
- Resistant to the effects of moisture,
yet it breathes, is not a vapor barrier and needs
no venting.
- Compressive strengths ranging from
10 - 25 psi that can accommodate specific roof traffic
and loads without deforming.
- Sizes that offer more slope and dimension
options than other insulations.
- Independent test reports document superior
in-situ performance in a wide variety of roof applications.
7220 - Roof Deck
Insulation: STYRO-STOP Direct is available in
tapered and flat panels and in a variety of slopes.
Ideal for use in ballasted, mechanically fastened and
fully-adhered roof assemblies.
STYRO-STOP Direct is available in a range
of sizes to meet your specific application:
Thickness: Maximum insulation thickness varies per assembly and material density.
Width: 24 inches - 48
inches
Length: 48 inches - 96
inches
STYRO-STOP does not contain ozone depleting
CFCs or HCFCs.
Design
Considerations
Physical
Properties
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| Ballasted Roof Assembly |
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| Mechanically Fastened Roof
Assembly |
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| Fully-Adhered Roof Assembly |
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| Factory fabricated hip and
valley panels eliminate time consuming field
fabrication of mitered corners. |
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