Halo® Subterra®
Perfectly Designed For Below Ground Applications
Subterra offers a high-performance GPS core that is laminated on both sides with a thick polypropylene film or an extra-tough cross-woven laminate (Subterra Plus).
Key Performance Advantages
waterproofing protection
Helps drain water away from foundation walls and protects waterproofing.
Energy Efficient
Continuous GPS insulation creates a thermal break and eliminates the energy loss from thermal bridging in the wall assembly.
flexible
Subterra is flexible and easily conforms to radius walls without needed time consuming field cuts.
Durable
Subterra Plus® is incredibly jobsite tough - it withstands severe foot and equipment traffic without breaking.
RAdon Barrier
Per the NRC's Radon Diffusion test, Subterra Plus is a radon barrier with 7 times higher radon resistance than 6 mil polyethylene membranes.
Subterra®
Board Size
Board Thickness
R-Value
Compressive Strength psi (KPA)
4 ft x 8 ft
1230mm x 2460mm
1.0”, 1.5”, 2.0”
26mm, 38mm, 52mm
R-5 per nominal inch
(based on thickness of 1-1/16”)
16 (110) / 30 (210)
Subterra Plus®
Board Size
Board Thickness
R-Value
Compressive Strength psi (KPA)
4 ft x 8 ft
1230mm x 2460mm
1.0”, 1.5”, 2.0”
26mm, 38mm, 52mm
R-5 per nominal inch
(based on thickness of 1-1/16”)
16 (110) / 30 (210)
Subterra®
Board Size
4 ft x 8 ft
1230mm x 2460mm
Board Thickness
1.0”, 1.5”, 2.0”
26mm, 38mm, 52mm
R-Value
R-5 per nominal inch
(based on thickness of 1-1/16”)
Compressive Strength psi (KPA)
16 (110) / 30 (210)
Subterra Plus®
Board Size
4 ft x 8 ft
1230mm x 2460mm
Board Thickness
1.0”, 1.5”, 2.0”
26mm, 38mm, 52mm
R-Value
R-5 per nominal inch
(based on thickness of 1-1/16”)
Compressive Strength
psi (KPA)
16 (110) / 30 (210)
Subterra Plus: Incredibly Tough & Unbreakable
Foundation Walls
Under Slab
Frost Shield
