Residential Commercial Crawlspace Basement Metal Building
Double P1 Double Bubble Foil White
A heavy-duty reflective insulation with a foil face on one side and a clean white finish on the other, so the white side can be left exposed in basements, garages, or commercial ceilings. The foil reflects 95% of radiant heat, and the solid construction also blocks vapor. One product for thermal, radiant, and moisture protection.
Features & Benefits
What makes it work
- 7-layer bubble insulation structure for enhanced strength and performance
- Solid foil, white poly, or white woven facing options
- Low-emittance foil surface (E=5%)
- Reflects up to 95% of radiant heat
- Unique LDPE plastic blend for long service life
- Stiffer than most bubble insulation, making it easier to install
- Suitable for all building insulation applications
- Ideal for retrofits and home improvement projects
- Excellent insulation for metal buildings and carports
- Reduces heat bridging in metal structures
- Will not delaminate, ensuring long-term durability and stability
- Compatible with hybrid installations using foam or fiberglass
- Ideal for metal buildings where a white facing is desired
- Provides excellent R-values when installed with airspace
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 |
|---|---|---|---|---|---|---|
| 300 ft² Woven | DB-2X4mmWB-300-Woven | 48" | 75' | 300 sq ft | 33 lbs | — |
| 500 ft² | DB-2X4mmWB-FW | 48" | 125' | 500 sq ft | 42 lbs | — |
| 625 ft² | N/A | 5' | 125' | 5' x 125' | 40 lbs | — |
Technical Data
Specifications
| Specification | Value |
|---|---|
| Standard Roll Sizes | 48"x75' / 48"x125' |
| Effective Coverage | 300/500 ft² |
| Thickness (inches) +/-5% | 0.32" nominal |
| Standard Roll Weight (lbs) +/-5% | 33 lb / 42 lb |
| Emittance (Metalized Foil Side) | E=5% (95% Reflective) |
| Water Vapor Transmission ASTM E-96 | 0.02 perms |
| Mold and Mildew | No Growth |
| Flame Spread, Smoke Development, and Fire Rating | Class A / Class 1 |
Performance Data
Thermal performance
| Assembly | Heat-Flow Direction | Typical R-Value |
|---|---|---|
| Attic - Vented | Heat flow down | Call for R-Value |
| Metal Buildings | Heat flow down | R-5.1 to R-18.3* |
| Metal Buildings | Wall | R-2.8 to R-6.8* |
| Post Frame Buildings | Heat flow down | R-4.2 to R-17.1* |
| Post Frame Buildings | Wall | R-2.8 to R-6.8* |
| Radiant Floors | Heat flow down | R-5.1 to R-18.3* |
| Wall - Basement Masonry | Wall | R-2.8 to R-6.8* |
- 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 | Double P1 Double Bubble Foil White (this product) This product | Radiant Barrier RB+ | Polyfoam PX50 | Polyfoam PX30 |
|---|---|---|---|---|
R-Value Thermal resistance. Higher is better. | R-2.8 to R-18.3 | 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 |
Get started
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