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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

Residential Buildings — tap hotspots to explore installation locations
Floor InsulationWall InsulationGarage

Metal Structures / Carport / Commercial Buildings

Metal Structures / Carport / Commercial Buildings — tap hotspots to explore installation locations
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

SpecificationDetails
Standard Roll Size4’×125’ / 5’×125’
Effective Coverage500 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 C1371E=5%
Reflectivity95%
Water Vapor Transmission ASTM E-96 (2016)0.01

Performance Data

Thermal performance

Assembly / ConfigurationR-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*
  1. R-values represent estimated and potential heat resistance for our insulation in the proposed application.
  2. Actual performance depends on air film size, temperature, surface condition, and airflow direction (up, down, or horizontal).
  3. Calculations are based on RIMA, AIRAH, ASHRAE, and ISO 6946 standards, following ASTM procedures for air film resistance.
  4. When two air spaces are used, values assume still air conditions in both spaces.
  5. For a full R-value assessment, please contact us directly or your nearest dealer.

How it stacks up

Compare with similar products

SpecificationPolyfoam 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
  • Metal Building
  • Barndominium
  • Wooden Structure
  • Carport
  • Attic
  • Floor
  • Wall
  • Metal Building
  • Barndominium
  • Wooden Structure
  • Carport
  • Crawlspace
  • Basement
  • Wall
  • Barndominium
  • Metal Building
  • Wooden Structure
  • Carport
Use Case
CommercialResidential
Residential
ResidentialCommercial
ResidentialCommercial
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