Residential Commercial Crawlspace Basement Wall
Triplex Single
A 1" multi-layer reflective insulation that pairs a foam core with bubble layers for solid R-value (up to R-10 with airspace) at a thickness that's still easy to handle. Reflects 95% of radiant heat, blocks vapor, and installs about 70% faster than rigid foam boards on crawlspaces, metal buildings, and masonry walls.
Features & Benefits
What makes it work
- 1″ multi-layer reflective insulation combining metalized foil, bubbles, and EPE foam core
- Reflects 95% of radiant heat to improve thermal efficiency
- Acts as a vapor and moisture barrier for long-term protection
- Provides R5.5 to R10 performance when installed with airspace
- Tear-resistant and puncture-resistant structure for durability
- Stiff, easy-to-install material saves up to 70% labor time
- Excellent insulation for crawlspaces, metal buildings, and masonry walls
- Performs in both hot and cold climates by reflecting and retaining heat
- Reduces vibration and sound transfer in metal structures
- Clean white finish suitable for visible interior applications
Where it's used
Installation locations
Residential Buildings
Crawlspace Insulation
Metal Structures / Carport / Commercial Buildings
RoofWall
Ordering
Available variants
| Name | SKU | Width | Length | Coverage | Weight | Mil |
|---|---|---|---|---|---|---|
| 48" x 25' 100 ft² | TRILX-2XBF-FW-MPET | 48" | 25' | 100 sq ft | 37 lbs | — |
Technical Data
Specifications
| Specification | Value |
|---|---|
| Standard Roll Size | 48" x 25' |
| Effective Coverage | 100 ft² |
| Standard Roll Weight (Gross) | 37 lbs |
| Contact Temperature Range | -60°F to 180°F (-51°C to 82°C) |
| Thickness | 1" nominal |
| Emittance (Metalized Side) | E=5% |
| Water Vapor Transmission | 0.02 perms ASTM E96 |
| Puncture Resistance | 60 lbs/in |
| Tensile Stress (kPa) | TD:3123 / MD:3073 |
| Tear Strength (kN/m) | TD:78.09 / MD:76.83 |
| Pliability | No Cracking |
| Linear Shrinkage | None |
| Mold and Mildew | No Growth |
| Flame Spread | < 25 ASTM E84-21a |
| Smoke Development | < 450 ASTM E84-21a |
| Fire Rating | Class A / Class 1 |
Performance Data
Thermal performance
| Assembly | Heat-Flow Direction | Typical R-Value |
|---|---|---|
| Attic Space (with 2x 3"–4" air spaces) | Heat flow down | R-11.5* |
| Metal Buildings | Heat flow down | R-10.1* |
| Metal Buildings | Heat flow horizontal (Wall) | R-5.2* |
| Post Frame Buildings | Heat flow down | R-8.1* |
| Post Frame Buildings | Heat flow horizontal (Wall) | R-5.2* |
| Wall / Crawl Space / Basement Masonry | Heat flow horizontal | R-10.0* |
| Wall – Garage | Heat flow horizontal | R-6.2* |
| Wall – 2x6 Stud with R12 batt | Heat flow horizontal | R-22.0* |
- 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 | Triplex Single (this product) This product | Radiant Barrier RB+ | Polyfoam PX50 | Polyfoam PX30 |
|---|---|---|---|---|
R-Value Thermal resistance. Higher is better. | R-5.2 to R-22 | R-4.1 to R-14.5 | R-7.43 to R-25.15 | R-7 to R-24.5 |
Applications |
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Use Case | ResidentialCommercial | Residential | CommercialResidential | ResidentialCommercial |
| Get a Quote | View product | View product | View product |
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