STYROFOAM™ Brand DECKMATE™ Insulation is a Type X extruded polystyrene foam product designed for use in conventional low-slope roof applications. It can be installed directly on structural steel decks beneath a sheet membrane or a standing seam metal roof, eliminating the need for a thermal barrier such as gypsum board.
Building Code Compliance
Complies with ASTM C578 Type X. Meets CAN/ULC S701 Type 2. Meets IBC/IRC requirements for foam plastic insulation. See ESR-2142, BOCA-ES RR 21-02, CCMC – Evaluation Listing #12085-L. UL Classified, see Classification Certificate D369.
STYROFOAM™ Brand DECKMATE™ CAD Details
Related Information
Conventional Roof Sell Sheet – Performance, Strength and Comfort (1.03MB PDF)
Conventional Roofing Membrane Insulation Guide Specification (French) (20KB PDF)
Conventional Roofing Membrane Insulation Guide Specification (French) (46KB DOC)
DECKMATE™ Product Information Sheet (97KB PDF)
DECKMATE™ Product Information Sheet (French) (97KB PDF)
Applications de toits conventionnels (310KB PDF)
STYROFOAM™ Extruded Polystyrene Foam Insulation – 50 Year Thermal Limited Warranty (U.S. Only) (206KB PDF)
STYROFOAM™ Extruded Polystyrene Foam Insulation – 30 Year Thermal Limited Warranty (U.S. Only) (202KB PDF)
STYROFOAM™ Brand DECKMATE™ Insulation
With specially designed smooth high-density skins, STYROFOAM™ Brand DECKMATE™ Insulation provides superior performance in conventional low-slope roof applications.
| Board Thickness(1), in (mm) | R-Value(2) (RSI) | Board Size, ft (mm) | Edge Treatment | Min Compressive Strength(3), psi (kPa) |
| 1.0 (25) | 5.0 (.87) | 2 x 8 (600 x 2400) | Shiplap | 16 (110) |
| 1.5 (40) | 7.5 (1.32) | 2 x 8 (600 x 2400) | Shiplap | 16 (110) |
| 2.0 (50) | 10 (1.76) | 2 x 8 (600 x 2400) | Shiplap | 16 (110) |
| 2.5 (65) | 12.5 (2.2) | 2 x 8 (600 x 2400) | Shiplap | 16 (110) |
| 3.0 (75) | 15.0 (2.64) | 2 x 8 (600 x 2400) | Shiplap | 16 (110) |
| 4.0 (100) | 20 (3.52) | 2 x 8 (600 x 2400) | Shiplap | 16 (110) |
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(1) Not all product sizes are available in all regions. (2) R means resistance to heat flow. The higher the R-value, the greater the insulating power. R-values are expressed in ft2• h•°F/Btu. R-value determined by ASTM C518. RSI values are expressed in m2°C/W. R-value determined by ASTM C518. (3) Vertical compressive strength is measured at 10% deformation (5% for STYROFOAM™ Brand PLAZAMATE™ Insulation and for STYROFOAM™ Brand HIGHLOAD 40, 60 and 100 Insulation products) or at yield, whichever occurs first. Since STYROFOAM™ Brand Extruded Polystyrene and Dow polyisocyanurate insulation products are visco-elastic materials, adequate design safety factors should be used to prevent long-term creep. For static loads, 3:1 is suggested. For dynamic loads, 5:1 is suggested. |
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07 22 16 Roof Board Insulation (Conventional Membrane Systems)
07 50 00 Conventional Membrane Roofing Insulation
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