DuPont™ Styrofoam™ Brand Square Edge XPS Insulation
Water-Resistant Insulation for Attics, Foundations, Conventional Roofs and Crawl Spaces U.S. HFC Regulation
DuPont™ Styrofoam™ Brand Square Edge XPS Insulation
Water-Resistant Insulation for Attics, Foundations, Conventional Roofs and Crawl Spaces U.S. HFC Regulation
<br><b>DuPont™ Styrofoam™ Brand Square Edge Extruded Polystyrene (XPS) Insulation</b> is a grey, extruded polystyrene foam (XPS) insulation board that provides continuous insulation over steel stud or wood framing, in masonry unit cavity walls, conventional roofs and meets the needs of the commercial foundation and building floor slab needs. It can also be used for attics, foundations/slabs and crawl spaces in residential applications.<br><br>With more than 60 years of proven performance in wet environments, the closed-cell structure of <b>Styrofoam™ Brand Square Edge XPS Insulation</b> resists water pickup, enabling it to retain a high R-value over time – a necessary property in wet, below-grade commercial foundation and commercial roofing applications.<br><br><b>Styrofoam™ Brand Square Edge XPS Insulation</b> is classified as a Type IV product when tested in accordance with ASTM C578 and provides a long term insulating performance of R-5 per inch.
Features & Benefits
Specifications
Standard Sizes
| Thickness | Width | Length | R-Value | Edge Treatment |
|---|---|---|---|---|
| 1 in. | 4 ft. | 8 ft. | 5 | Square Edge |
| 1 1/2 in. | 4 ft. | 8 ft. | 7.5 | Square Edge |
| 2 in. | 4 ft. | 8 ft. | 10 | Square Edge |
| 2.5 in. | 4 ft. | 8 ft. | 12.5 | Square Edge |
| 3 in. | 4 ft. | 8 ft. | 15 | Square Edge |
| 4 in. | 4 ft. | 8 ft. | 20 | 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
<b>Styrofoam™ Brand Square Edge XPS Insulation</b> 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 | 25 psi, min. |
| ASTM C203 | Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation | Flexural Strength | 50 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.