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Insulation
DuPont™ Styrofoam™ Brand Residential Sheathing XPS Insulation
DuPont™ Styrofoam™ Brand Residential Sheathing XPS Insulation
Versatile Insulation with High Moisture and Thermal Resistance
U.S. HFC Regulation Compliant Formulation
DuPont™ Styrofoam™ Brand Residential Sheathing Extruded Polystyrene (XPS) Insulation is inherently resistant to moisture and is lightweight, making it easy to handle. Its thin plastic film coating enables it to withstand abuse during handling and around the job site.
Styrofoam™ Brand Residential Sheathing XPS Insulation is designed for use when a 15 psi compressive strength (ASTM C578 Type X) product is needed.
Specifications
Standard Sizes
Thickness | Width | Length | R-Value | Edge Treatment |
0.55 in. | 4 ft. | 8 ft. | 3 | Square Edge |
0.55 in. | 4 ft. | 9 ft. | 3 | Square Edge |
0.55 in. | 4 ft. | 10 ft. | 3 | Square Edge |
0.78 in. | 4 ft. | 8 ft. | 4 | Square Edge |
1 in. | 4 ft. | 8 ft. | 5 | Square Edge |
Note: Please be advised that additional sizes may be available. Availability of all sizes varies by region and is subject to change. For further information, please contact your local DuPont Sales Representative or call us at 1-866-338-7668.
Testing
Styrofoam™ Brand Residential Sheathing XPS Insulation exhibits the properties and characteristics indicated in the table below when tested as represented. Review all instructions and (Material) Safety Data Sheet ((M)SDS) before use. Please contact DuPont at 1-833-338-7668 when additional guidance is required for writing specifications that include this product.
TEST METHOD | TEST TITLE | PROPERTY | RESULTS |
FIRE | |||
UL 723 | Test Method for Surface Burning Characteristics of Building Materials | Surface Burning Characteristics | Flame Spread ≤ 25 Smoke Developed ≤ 450 |
THERMAL | |||
ASTM C518 | Standard Test Method for Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus | Thermal Resistance per inch @ 75°F mean temp1 | 5.0 ft2 •h•°F/Btu, R-value, min. |
ASTM D696 | Standard Test Method for Coefficient of Linear Thermal Expansion of Plastics Between −30°C and + 30°C with a Vitreous Silica Dilatometer | Coefficient of Linear Thermal Expansion | 3.5 x 10-5 in/in•°F |
ASTM D2126 | Standard Test Method for Response of Rigid Cellular Plastics to Thermal and Humid Aging | Change in Dimensions | 2.0% change, max. |
STRENGTH | |||
ASTM D1621 | Standard Test Method for Compressive Properties of Rigid Cellular Plastics | Compressive Strength2 | 15 psi, min. |
ASTM C203 | Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation | Flexural Strength | 40 psi, min. |
WATER | |||
ASTM C272 | Standard Test Method for Water Absorption of Core Materials for Sandwich Construction | Water Absorption | 0.1% by volume, max. |
ASTM E96 | Standard Test Methods for Gravimetric Determination of Water Vapor Transmission Rate of Materials | Water Vapor Permeance3 | 1.5 perm, max. |
1Values are consistent with the criteria of ASTM C578 and the requirements of the FTC R-value rule (16 CFR Part 460). R means resistance to heat flow. The higher the R-value, the greater the insulating power.
2Vertical compressive strength is measured at 10 percent deformation or at yield, whichever occurs first. Since Styrofoam™ Brand Extruded Polystyrene Foam Insulations are visco-elastic materials, adequate design safety factors should be used to prevent long-term creep and fatigue deformation.
3Based on 1” thickness.
Code Compliance
Styrofoam™ Brand Residential Sheathing XPS Insulation complies with the following codes:
Code | Description |
US Product Listings & Verifications | International Residential Code (IRC) and International Building Code (IBC); see ICC-ES ESR-4755 Underwriters Laboratories, Inc. (UL) Classified, see Classification Certificate D-369 DrJ TER 1506-03 DrJ TER 2105-01 |
Regional Code Listings & Reports | California Std. Reg. #CA T1535 |
