Easy to install and maintain, STYROFOAM™ Brand Ag Board resists moisture infiltration, withstands high-pressure cleaning and helps reduce the potential for moisture condensation in agricultural buildings. The closed-cell extruded polystyrene insulation helps reduce heat loss or gain and features shiplap edges to ensure a tight, secure fit. The durable Type IV insulation boards can be pressure-washed at 800 psi (3' distance).
On buildings not occupied by humans, STYROFOAM™ Brand Ag Board can be left exposed on the ceiling and walls without a thermal barrier.
Building Code Compliance
Complies with ASTM C578 Type IV. Meets IBC/IRC requirements for foam plastic insulation. See ICBO-ES ER 2257, BOCA-ES RR 21-02, ICC-ES NER 699. FM 4880 – see Factory Mutual Approval Guide. UL Classified, see Classification Certificate D369 (UBC 26-3). Complies with ASHRAE Standard 401.2 Guidelines for use of Thermal Insulation in an Agricultural Building.
Related Information
Installation Procedures for STYROFOAM™ Ag Board Insulation (72KB PDF)U.S. Agricultural
STYROFOAM™ Brand Ag Board resists moisture infiltration, withstands high-pressure cleaning and helps reduce the potential for moisture condensation in agricultural buildings.
| Nominal Board Thickness(1), in | R-Value(2) | Board Size, in | Edge Treatment | Min Compressive Strength(3), psi |
| 1.0 | 5.0 | 48 x 240 / 48 x 258 | Shiplap | 25 |
| 1.5 | 7.5 | 48 x 224 / 48 x 255 48 x 256 / 48 x 258 48 x 270 / 48 x 273 48 x 276 / 48 x 318 |
Shiplap | 25 |
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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. (3) Vertical compressive strength is measured at 10% deformation (5% for STYROFOAM™ Brand HIGHLOAD Insulation – 40, 60 and 100 products) or at yield, whichever occurs first. Since STYROFOAM™ Brand Extruded Polystyrene 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 20 00 – Board Insulation
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U.S. Commercial
THERMAX™ Sheathing consists of a high-performance foam core laminated between 1.0 mil smooth, reflective aluminum foil facers on both sides that contribute to improved fire resistance and dimensional stability.
| Nominal Board Thickness(1), in | R-Value(2) | Board Size, ft | Edge Treatment | Min Compressive Strength(3), psi |
| .50 | 3.3 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| .75 | 5.0 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 1.0 | 6.5 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 1.25 | 8.1 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 1.50 | 9.8 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 1.55 | 10.1 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 2.0 | 13.0 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 2.5 | 15.8 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 2.75 | 17.3 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 3.0 | 19.0 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 3.5 | 22.1 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 4.0 | 25.2 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
| 4.25 | 27.0 | 16" x 8' / 4' x 8' / 4' x 10' | Square Edge | 25 |
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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. (3) Vertical compressive strength is measured at 10% deformation (5% for STYROFOAM™ Brand PLAZAMATE™ Insulation and for STYROFOAM™ Brand HIGHLOAD Insulation - 40, 60 and 100 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 20 00 – Board Insulation
We're here to help. If you're not finding the information you need, please let us know.
