Commercial Residential Metal Building Barndominium Wooden Structure
Polyfoam PX50
A thicker, higher-performing version of PX30 with a denser foam core for stronger thermal performance on larger metal buildings, warehouses, and shops. Reflects 95% of radiant heat, resists moisture, and the white woven face leaves a clean, finished interior look.
Features & Benefits
What makes it work
- 7-layer EPE core insulation structure for superior durability
- Low emittance foil surface (E=5%) reflects up to 95% of radiant heat
- High tensile white woven outer layer for added strength and a clean aesthetic finish
- Tear-proof and puncture-resistant design ensures long-lasting performance
- Excellent for carports, barns, and metal buildings requiring a thermal break
- Minimizes heat transfer and thermal bridging in metal structures
- Will not delaminate - maintains integrity and stability over time
- Suitable for hybrid installations with foam or fiberglass
- Provides an impressive R-value when installed with airspace
- All-weather resistant and corrosion-free for extended lifespan
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-50-FWOV4-125 | 4' | 125' | 500 sq ft | 36.5 lbs | — |
| 5' x 125' - 625 ft² | PFM-50-FWOV5-125 | 5' | 125' | 625 sq ft | 44 lbs | — |
Technical Data
Specifications
| Specification | Details |
|---|---|
| Standard Roll Size | 4’×125’ / 5’×125’ |
| Effective Coverage | 500 ft² / 625 ft² |
| Standard Roll Weight (Gross) | 36.5 lb / 44 lb |
| Thickness (inches) +/-5% | 0.20” (1/5) nominal |
| Weight (lbs/ft²) +/-5% | 0.081 |
| 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-7.43 / R-13.63* |
| Foil Facing Single / Double Air Film 4" | R-11.21 / R-21.24* |
| Foil Facing Single / Double Air Film 5" | R-12.92 / R-23.56* |
| 2 Layers of Polyfoam / PX50 with Double Air Films 5" | R-25.15* |
- 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 PX50 (this product) This product | Radiant Barrier RB+![]() | Polyfoam PX30![]() | Triplex Single![]() |
|---|---|---|---|---|
R-Value Thermal resistance. Higher is better. | R-7.43 to R-25.15 | R-4.1 to R-14.5 | R-7 to R-24.5 | R-5.2 to R-22 |
Applications |
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Use Case | CommercialResidential | Residential | ResidentialCommercial | ResidentialCommercial |
| Get a Quote | View product | View product | View product |
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