08/28/2026
Why do we like GPS for exterior walls?
GPS (Graphite Polystyrene) is EPS insulation enhanced with graphite particles that help improve thermal performance and increase R-value.
That’s what makes Halo Exterra a strong option for above-grade exterior insulation.
At Type 1 density, Halo Exterra delivers approximately R-5 per nominal inch while remaining lightweight and practical for installation.
A better building envelope starts from the outside in.
Planning a project and wondering where continuous exterior insulation fits? Connect with AMC Foam and we’ll help point you in the right direction.