Residential Commercial Metal Building Barndominium Wooden Structure
Polyfoam PX30
A reflective insulation built around a closed-cell foam core, giving it a thicker thermal break than our bubble-based products. Foil face reflects 95% of radiant heat and the heavy-duty white woven backing stays clean when left exposed. A good match for metal buildings, barndominiums, and carports.
Features & Benefits
What makes it work
- 7-layer construction with a 0.12" closed-cell EPE foam core
- Low-emittance metalized foil surface (E = 5%)
- Reflects 95% of radiant heat
- Corrosion-resistant metalized foil for long-term performance
- Heavy-duty white woven reinforcement for added strength
- Helps reduce heat transfer through metal framing by adding a thermal break
- Strong, stable laminate that holds up well during handling and install
- Works well as a liner in metal buildings, sheds, carports, barns, prefab structures, and more
- Can be used on its own or paired with fiberglass or foam in hybrid assemblies
- Clean white woven finish for a brighter, more finished interior appearance
Where it's used
Installation locations
Residential Buildings
Floor InsulationWall InsulationGarage
Metal Structures / Carport / Commercial Buildings
RoofWall
Ordering
Available variants
| Name | SKU | Width | Length | Coverage | Weight | Mil |
|---|---|---|---|---|---|---|
| 4' x 125' - 500 ft² | PFM-30-FWOV-4-125 | 4' | 125' | 500 sq ft | 32.85 lbs | — |
| 5' x 125' - 625 ft² | PFM-30-FWOV-5-125 | 5' | 125' | 625 sq ft | 39.60 lbs | — |
Technical Data
Specifications
| Specification | Details |
|---|---|
| Standard Roll Size | 4’×125’ / 5’×125’ |
| Effective Coverage | 500 ft² / 625 ft² |
| Standard Roll Weight (Gross) | 32.85 lb / 39.60 lb |
| Thickness (inches) +/-5% | 0.12” (1/8) nominal |
| Weight (lbs/ft²) +/-5% | 0.073 |
| Emittance (Both Sides) ASTM C1371 | E=5% |
| Reflectivity | 95% |
| Water Vapor Transmission ASTM E-96 (2016) | 0.01 |
Performance Data
Thermal performance
| Assembly / Configuration | R-Value |
|---|---|
| Foil Facing Single / Double Air Film 2" | R-7.00 / 13.00* |
| Foil Facing Single / Double Air Film 4" | R-10.50 / 20.70* |
| Foil Facing Single / Double Air Film 5" | R-12.22 / 22.88* |
| 2 Layers of Polyfoam/PX30 with Double Air Films 5" | R-24.00 / 24.50* |
- R-values represent estimated and potential heat resistance for our insulation in the proposed application.
- Actual performance depends on air film size, temperature, surface condition, and airflow direction (up, down, or horizontal).
- Calculations are based on RIMA, AIRAH, ASHRAE, and ISO 6946 standards, following ASTM procedures for air film resistance.
- When two air spaces are used, values assume still air conditions in both spaces.
- For a full R-value assessment, please contact us directly or your nearest dealer.
How it stacks up
Compare with similar products
| Specification | Polyfoam PX30 (this product) This product | Radiant Barrier RB+ | Polyfoam PX50 | Triplex Single |
|---|---|---|---|---|
R-Value Thermal resistance. Higher is better. | R-7 to R-24.5 | R-4.1 to R-14.5 | R-7.43 to R-25.15 | R-5.2 to R-22 |
Applications |
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Use Case | ResidentialCommercial | Residential | CommercialResidential | ResidentialCommercial |
| Get a Quote | View product | View product | View product |
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