DuPont™ Styrofoam™ Brand Roofmate™ XPS Insulation

Water-Resistant Insulation for Protected Membrane Roofing Systems<br>U.S. HFC Regulation Compliant Formulation

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DuPont™ Styrofoam™ Brand Roofmate™ XPS Insulation

Water-Resistant Insulation for Protected Membrane Roofing Systems<br>U.S. HFC Regulation Compliant Formulation

<br><b>DuPont™ Styrofoam™ Brand Roofmate™ Extruded Polystyrene (XPS) Insulation</b> is designed for installation above waterproofing or roofing membranes in protected membrane roof (PMR) or green roof applications and is easy to fabricate into various sizes and shapes to meet specific design needs. <br><br> Engineered for use on heavyweight decks (e.g. reinforced concrete) with a ballast layer of gravel or concrete slabs, <b>Styrofoam™ Brand Roofmate™ XPS Insulation</b> helps the roof membrane maintain a steady temperature, minimizing the harmful effects of freeze-thaw cycles, weathering and physical damage during and after construction.

Resources

Product Information Sheets Installation Guides Technical Documents Brochure Codes & Certifications Fire Performance Warranty

Features & Benefits

Engineered for Use on Heavyweight Decks
Water and Rot Resistance
Reuseable

Specifications

Standard Sizes

1 in.
2 ft.
8 ft.
5
Butt Edge
2 in.
2 ft.
8 ft.
10
Butt Edge
3 in.
2 ft.
8 ft.
15
Butt Edge
4 in.
2 ft.
8 ft.
20
Butt 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 Roofmate™ XPS Insulation</b> exhibits physical properties as 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.

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
40 psi, min.
ASTM C203
Standard Test Methods for Breaking Load and Flexural Properties of Block-Type Thermal Insulation
Flexural Strength
60 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
1.0 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

<b>Styrofoam Brand Roofmate™ XPS Insulation</b>complies with the following codes:

US Product Listings & Verifications
Factory Mutual Approved<br>International Residential Code (IRC) and International Building Code (IBC) ICC-ES ESR-4755<br>Underwriters Laboratories, Inc. (UL) Classified, see Classification Certificate D-369
Regional Code Listings & Reports
California Std. Reg. #CAT1535<br>Florida Building Code-FL38732<br>Miami Dade County Approved

Additional Learning

5 Reasons to Choose an Inverted Roof

Discover why inverted roofs are becoming a smarter, more durable choice for modern buildings—delivering long-term performance, sustainability and lower lifecycle costs. Learn how DuPont™ Styrofoam™ Brand XPS Insulation helps maximize these benefits with proven moisture resistance and thermal reliability.

Learn more

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