Specifically designed for exterior above-grade
• A high performance Neopor core laminated
on the exterior with a clear perforated
• Independent testing has shown that, with ½”
o/c perforations, Exterra (in thicknesses up to
1 5/8”) has a permeance greater than 60 ng/
• Thus per building code, Exterra is “permeable”
and allows moisture to leave the wall cavity.
• When the joints are taped, Exterra can also
act as the exterior air and weather barriers.