Halo® Interra® FR
Perfectly Designed for Uncovered Interior Applications*
INTERRA® FR OFFERS A SPECIALLY FORMULATED GPS FOAM CORE THAT DOES NOT REQUIRE A THERMAL BARRIER*
*In the USA Only
Key Performance Advantages
No Thermal Barrier Needed
Interra® FR is now regionally available and is specially formulated to not require a thermal or ignition barrier (in the USA only) when installed on any interior wall surface.
BUILT-IN VAPOR BARRIER
Eliminates the need for poly.
Reflective
Can reflect heat back into the home or building (dead air space required)
ENERGY EFFICIENT
Continuous GPS insulation creates a thermal break and eliminates the energy loss from thermal bridging in the wall assembly.
- Interra® FR is made with a low-density (<10PSI) Neopor Graphite Polystyrene (GPS) foam board with a reflective laminate on one of its sides.
- Interra® FR has passed the NFPA 286 test, so it’s code-approved for use in basements and crawl spaces in the USA without an added ignition or thermal barrier, such as drywall.
- You can use Interra® FR in crawl spaces that are deemed to be full or limited access — there’s absolutely no difference.
- Interra® FR does not require a thermal or ignition barrier in the USA.
Interra® FR
Board Size
Board Thickness
R-Value
Compressive Strength psi (KPA)
4 ft x 8 ft
1230mm x 2460mm
.625”, 1.0”, 1.5”, 2.0”
16mm, 26mm, 38mm, 52mm
R-4.9 per nominal inch (based on thickness of 1-1/16”)
5 (35)
Interra® FR
Board Size
4 ft x 8 ft
1230mm x 2460mm
Board Thickness
.625”, 1.0”, 1.5”, 2.0”
13mm, 26mm, 38mm, 52mm
R-Value
R-4.9 per nominal inch (based on thickness of 1-1/16”)
Compressive Strength psi (KPA)
5 (35)
Additional thicknesses may be offered regionally. Custom thicknesses and compressive strengths are available upon request.
Basement Walls
Basement Walls With Framing
Crawl Spaces
Above Grade Walls
