Description
Subterra is advanced below-ground rigid insulation. This is the genius of surround science.
- Halo® GPS (graphite polystyrene) delivers a long-term R-5 per nominal inch
- Available with a thick polypropylene laminate or an extra-tough cross-woven laminate (Subterra® Plus)
- Continuous GPS insulation creates a thermal break
- Protects waterproofing
- Exterior laminate helps drain water away from the foundation wall
- It’s job site tough — withstands severe foot and equipment traffic without breaking
- Built-in water-resistive barrier
- Board size is 4′ x 8′
