Does Halo Subterra or Subterra Plus Qualify as Waterproofing or Damp Proofing for Below Grade Walls Per Building Code?
Does Halo Subterra or Subterra Plus Qualify as Waterproofing or Damp Proofing for Below Grade Walls Per Building Code? No. Halo Subterra and Subterra Plus do NOT qualify as a water proofing or damp proofing layer in a below grade wall assembly. A separate water proofing or damp proofing layer must be installed against the […]
High Performance Made Simple: an Airtightness Story
See how attention to detail and the right insulation products helped student-builders construct a beautiful (and airtight) home benefiting the YMCA.
Will Two Layers of Exterra Still Be Permeable?
WILL 2 LAYERS OF EXTERRA STILL BE PERMEABLE? No. Two layers of Exterra will not meet the minimum requirement of being “permeable”, which is 60 ng/Pa-s-m2, or 1 perm. A single layer of Exterra maintains it’s breathability up to a maximum thickness of 2” (71 ng/Pa-s-m2 or 1.2 perms at 2”). Exterra panels are laminated […]