With a planed surface, STYROFOAM™ Brand DECKMATE™ Plus FA Insulation is designed for use in fully adhered conventional low-slope roof applications. The Type IV extruded polystyrene foam insulation boards can be installed directly on structural steel decks beneath a non-bituminous sheet membrane, eliminating the need for a thermal barrier. Available in flat and tapered board stock.
Building Code Compliance
Complies with ASTM C578 Type IV. Meets CAN/ULC S701 Type 3. Meets IBC/IRC requirements for foam plastic insulation. See ESR-2142, BOCA-ES RR 21-02, ICBO-ES ER-2257, ICBO-ES ER 5155, CCMC - Evaluation Listing #12085-L. UL Classified, see Classification Certificate D369.
3D Model Using STYROFOAM™ Brand DECKMATE™ Plus FA Insulation (320KB)
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STYROFOAM™ Brand DECKMATE™ Plus FA Insulation CAD Details
Related Information
Isolant de mousse de polystyrène extrude de marque STYROFOAM DECKMATE Plus FA (100KB PDF)
A Great Angle on Flat Roofs – STYROFOAM™ Brand Tapered DECKMATE™ Plus FA Insulation Brochure (196KB PDF)
STYROFOAM™ DECKMATE™ Plus Insulation Products: Direct-to-Deck Application Information (114KB PDF)
Fully Adhered Roofs Stay Put with STYROFOAM™ DECKMATE™ Plus FA and INSTA STIK™ Quik Set (160KB PDF)
Rigid Polystyrene Roof Board Insulation – Fully Adhered STYROFOAM™ DECKMATE™ Plus FA Guide Specification (37KB PDF)
Conventional Roof Sell Sheet – Performance, Strength and Comfort (1.03MB PDF)
STYROFOAM™ Brand DECKMATE™ Plus FA Product Information Sheet (129KB PDF)
STYROFOAM™ Extruded Polystyrene Foam Insulation 50-Year Thermal Limited Warranty (U.S. Only) (260KB PDF)
U.S. Commercial
STYROFOAM™ Brand DECKMATE™ Plus FA Insulation has a planed surface and is designed for use in fully adhered conventional low-slope roof applications. It can be installed directly on structural steel decks beneath a non-bituminous sheet membrane, eliminating the need for a thermal barrier. See table below for slopes of tapered panels.
| Nominal Board Thickness(1), in | R-Value(2) | Board Size, ft | Edge Treatment | Min Compressive Strength(3), psi |
| 1.5 | 7.5 | 2 x 8 | Square Edge | 25 |
| 2.0 | 10.0 | 2 x 8 | Square Edge | 25 |
| 2.5 | 12.5 | 2 x 8 | Square Edge | 25 |
| 3.0 | 15.0 | 2 x 8 | Square Edge | 25 |
| 4.0 | 20.0 | 2 x 8 | Square Edge | 25 |
|
(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. 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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| Slopes for STYROFOAM™ Brand Tapered DECKMATE™ Plus FA Insulation | ||||
| A | B | C | D | |
|
1/8" Slope Nominal Board Thickness, in |
1/2 – 3/4 | 3/4 – 1 | 1 – 1-1/4 | 1-1/4 – 1-1/2 |
| E | F | |||
|
1/4" Slope Nominal Board Thickness, in |
1/2 – 1 | 1 – 1-1/2 | — | — |
| G | ||||
|
1/2" Slope Nominal Board Thickness, in |
1/2 – 1-1/2 | — | — | — |
07 22 16 Roof Board Insulation (Conventional Membrane Systems)
07 50 00 Conventional Membrane Roofing Insulation
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Canada Commercial
STYROFOAM™ Brand DECKMATE™ Plus FA Insulation has a planed surface and is designed for use in fully adhered conventional low-slope roof applications. It can be installed directly on structural steel decks beneath a non-bituminous sheet membrane, eliminating the need for a thermal barrier. See table below for slopes of tapered panels.
| Nominal Board Thickness(1), in (mm) | R-Value(2) (RSI) | Board Size, ft (mm) | Edge Treatment | Min Compressive Strength(3), psi (kPa) |
| 1.5 (40) | 7.5 (1.32) | 2 x 8 (600 x 2400) | Shiplap | 25 (170) |
| 2.0 (50) | 10.0 (1.76) | 2 x 8 (600 x 2400) | Shiplap | 25 (170) |
| 2.5 (65) | 12.5 (2.2) | 2 x 8 (600 x 2400) | Shiplap | 25 (170) |
| 3.0 (75) | 15.0 (2.64) | 2 x 8 (600 x 2400) | Shiplap | 25 (170) |
| 4.0 (100) | 20.0 (3.52) | 2 x 8 (600 x 2400) | Shiplap | 25 (170) |
|
(1) Not all product sizes are available in all regions. (2) R means resistance to heat flow. The higher the R-value or RSI (R-Value Système Internationale), the greater the insulating power. R-values are expressed in ft2• h•°F/Btu. 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 HIGHLOAD 40, 60 and 100 Insulation products) or at yield, whichever occurs first. Since STYROFOAM™ Brand Extruded Polystyrene 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. |
||||
| Slopes for STYROFOAM™ Brand Tapered DECKMATE™ Plus FA Insulation | ||||
| A | B | C | D | |
|
1/8" Slope Nominal Board Thickness, in |
1/2 – 3/4 | 3/4 – 1 | 1 – 1-1/4 | 1-1/4 – 1-1/2 |
| E | F | |||
|
1/4" Slope Nominal Board Thickness, in |
1/2 – 1 | 1 – 1-1/2 | — | — |
| G | ||||
|
1/2" Slope Nominal Board Thickness, in |
1/2 – 1-1/2 | — | — | — |
07 22 16 Roof Board Insulation (Conventional Membrane Systems)
07 50 00 Conventional Membrane Roofing Insulation
We're here to help. If you're not finding the information you need, please let us know.