Our low GWP formulation features a new grey color and the same great performance.
As of November 2023, all Styrofoam™ Brand extruded polystyrene insulation (XPS) is produced as low-GWP, grey XPS. Some heritage blue Styrofoam™ XPS may be still available in U.S. states where they are compliant for sale. We tested and refined all our products to ensure that Styrofoam™ Brand XPS will continue to meet or exceed codes and regulations and can deliver the performance you’ve come to expect – in a color that meets modern design aesthetics.
Requirement: As of 1/1/2025, no person may manufacture or import any XPS product (Polystyrene—extruded boardstock, billet, and extruded sheet) in the US with a 100-year GWP > 150.
Labeling: Requirements include the full date, or at minimum the four-digit year, of manufacture. The GWP of the blowing agent or the name of the blowing agent compound used must be noted on the product.
Sell Through Period: Three years after the manufacture and import compliance date of 1/1/2025 any XPS product with a 100-year GWP >150 cannot be sold in the US.
More Information: https://www.govinfo.gov/content/pkg/FR-2023-10-24/pdf/2023-22529.pdf?utm_campaign=subscription+mailing+list&utm_medium=email&utm_source=federalregister.gov
Traditional blue products manufactured after:
1/1/2021 may not be sold into California, Colorado, New Jersey, New York, Vermont, Virginia, Washington State;
7/1/2021 may not be sold into Maryland or Massachusetts;
9/1/2021 may not be sold into Delaware; and
1/1/2022 may not be sold into Maine or Rhode Island.
Contact our single-entry point for Performance Building Solutions Technical Inquiries by calling 866-583-2583 or visiting our website for support for your state.
As of January 1, 2021, blue Styrofoam™ Brand XPS transitioned to grey in Canada. All Styrofoam™ Brand XPS manufactured for Canada meet the regulations.
Labeling: Québec does not require labeling for foam product blowing agents.
Sell Through Period: Québec allows product manufactured or blended before the date of restriction to remain in commerce until July 1, 2021.
More Information: The original regulations are available here. The amending regulations are available here.
As of January 1, 2021, blue Styrofoam™ Brand XPS was fully reformulated to low GWP grey XPS in Canada. All Styrofoam™ Brand XPS manufactured for Canada meet the regulations.
Sell Through Period: Canada allows product manufactured or blended before the date of restriction to remain in commerce.
More Information: The regulations are available in English here. The regulations are available in French here.
Third party verified Environmental Product Declarations (EPD) through UL Spot® are available for Styrofoam™ Brand products:
DuPont™ Styrofoam™ Brand XPS Insulation has played a key role in the building and construction industry for more than 80 years, enhancing energy efficiency and the sustainability profile of the entire building envelope. The new low-GWP formulation offers a 94% reduction in embodied carbon. Thanks to the energy it can help save over its lifetime, Styrofoam™ Brand XPS has been shown to help save more than 30 times the energy embodied in it1. Already manufactured with 100% renewable electricity2 and a zero-ozone depletion formula, the sustainability benefits of Styrofoam™ Brand XPS include:
Embodied Carbon/LCA Optimization Assessment, which demonstrates that low-GWP Styrofoam™ Brand XPS has achieved a 94% reduction in embodied carbon relative to the previous formulation
Reusable in many applications
Certified by UL Environment Inc. to contain an average of 20% pre-consumer recycled content
Produced with BluEdge™ Polymeric Flame Retardant Technology, a stable polymer with an enhanced environment, health and safety profile
Can help owners, architects and builders achieve green building certifications, including U.S. Green Building Council's Leadership in Energy and Environmental Design (LEED®) certification
Can provide 200% cost, or equivalent to two products, for the LEED v4.1 LCA Optimization credit
Styrofoam™ Brand ST-100 |
Owens Corning Foamular® NGX™ |
Kingspan GreenGuard® LG |
|
---|---|---|---|
EPD Available? | Yes | Yes | Yes |
Embodied carbon (A1-C4) kgCO2e/m2RSI |
6.2 | 9.8 | 4.5 |
Embodied carbon (A1-C4) kgCO2e/bdft* |
0.5 | 0.8 | 0.4 |
Leed Optimization Credit Eligible? | Yes, 2 (max possible+) | Yes, 1.5 (max possible) | No |
Styrofoam™ Brand XPS | Owens Corning Foamular® NGX™ |
SOPREMA® Sopra-XPS |
|
---|---|---|---|
EPD Available? | Yes | Yes | Yes |
Embodied carbon (A1-C4) kgCO2e/m2RSI |
6.2 | 9.8 | 2.1 |
Embodied carbon (A1-C4) kgCO2e/bdft* |
0.5 | 0.8 | 0.2 |
Leed Optimization Credit Eligible? | Yes, 2 (max possible+) | Yes, 1.5 (max possible) | No |
*To convert kgCO2e/m2RSI to kgCO2e/bdft, divide by 12.24. The 12.24 factor was calculated by the following equations:
1m2RSI = 1m2 * 1.14 inch = 1.02 ft3 (where 1m2 = 10.76 ft2 and 1.14 in = 0.095 ft)
1bdft = 1ft2*in = 1ft2*(1/12 ft) = 0.0833 ft3
1.02/0.0833 = 12.24 m2RSI / bdft
Code Approval Documentation
A unique closed-cell structure gives Styrofoam™ Brand XPS its exceptional moisture resistance and enables it to retain a high, long-term R-value of R-5 per inch – even after exposure to standing water, wet soil and other damp conditions. Additional performance attributes of Styrofoam™ Brand XPS include:
DuPont™ Styrofoam™ Brand XPS products are backed by the expertise of building science leaders dedicated to your success and warranties from a name you trust, including limited thermal warranties from 15 to 50 years including the Wall² system warranties and other system warranties.
Grey, low GWP Styrofoam™ Brand XPS Insulation addresses the modern need for a dark reveal behind open-joint rainscreen systems or other applications where exposed insulation is desired. But that's not all. As a highly efficient continuous insulation, Styrofoam™ Brand XPS helps prevent thermal bridging which may lead to unsightly dark stains visible through cladding.
DuPont Performance Building Solutions is committed to being in step with where the construction industry is going. Our robust portfolio of proven and compatible products brings together decades of technology, expertise and innovation to provide water, air and thermal protection for all six sides of your building envelope.
Resources
1 Calculated from life cycle analysis from published Styrofoam™ Brand Environmental Product Declaration Report.
2We have purchased Renewable Energy Credits to offset our electricity usage since 2016
DuPont believes this information to be reliable. It may be subject to change as additional knowledge and experience are gained. It is not intended as a substitute for any testing you may conduct to determine for yourself the suitability of our products for your particular purpose. Since conditions for use are outside the DuPont’s control, DUPONT DE NEMOURS, INC. OR ITS AFFILIATES MAKE NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE AND ASSUMES NO LIABILITY IN CONNECTION WITH ANY USE OF THIS INFORMATION. This information is not intended as a license to operate under or a recommendation to infringe any trademark, patent or technical information of DuPont or other persons covering any material or its use. ©2024 DuPont. All rights reserved. DuPont™, the DuPont Oval Logo, and all trademarks and service marks denoted with ™, ℠ or ® are owned by affiliates of DuPont de Nemours, Inc. unless otherwise noted.