TempShield Double Bubble Double Foil Reflective Insulation
TempShield Double Bubble Double Foil Reflective Insulation consists of two layers of polyethylene bubble film laminated between reflective metallized film on both sides. The lightweight, 1/4-inch nominal material is designed for use in agricultural, residential, and commercial building assemblies.
The reflective surfaces reduce radiant heat transfer when facing an air space. Thermal performance depends on the complete assembly, air-space dimensions, heat-flow direction, and installation. Follow the manufacturer's installation instructions for the intended application.
| Material Construction | Double Bubble Core |
|---|---|
| Nominal Thickness | 1/4" |
| Reflective Surfaces | Double Metallized Foil |
| Vapor Control | Low Perm Vapor Barrier |
Specifications
| Product Description | Two layers of 1/8" barrier bubble film laminated between two layers of reflective metallized film |
| Contact Temperature Range | -60°F to 180°F (-51°C to 82°C) |
| Thickness | 1/4 inch nominal |
| Water Vapor Transmission | 0.02 perms (ASTM E96) |
| Puncture Resistance | 60 lbs/in |
| Pliability | No cracking |
| Linear Shrinkage | None |
| Mold and Mildew | No growth |
| Flame Spread | 0 (ASTM E84-08) |
| Smoke Development | 40 (ASTM E84-08) |
| Fire Rating | Class A / Class 1 |
Key Features
- Clean, lightweight, and easy to install
- Double foil reflective surfaces reduce radiant heat transfer
- Double bubble core slows conductive heat flow
- Assembly R-values vary by application and installation; reflective surfaces must face the specified air spaces
- Low-permeance material can help manage water-vapor movement when seams and penetrations are properly sealed; condensation control also depends on the building assembly and ventilation
- Class A / Class 1 fire rating for added safety
- Resists moisture, mold, and mildew in demanding environments
- Thin bubble-film construction; protect the material from crushing and damage and maintain the specified air spaces
- May help reduce heating and cooling demand; results depend on climate, existing insulation, and installation
Best Uses
TempShield Double Bubble Double Foil Reflective Insulation is ideal for barns, metal buildings, shops, garages, pole buildings, and agricultural structures where heat control and moisture protection are essential. Potential applications include walls, ceilings, roofs, and crawl spaces, subject to the manufacturer's installation details and the required air spaces.
Its thin profile makes it especially useful in retrofit applications or areas with limited space, with required air spaces included in the installation plan.





