Home > Shop > Drywall & Insulation > Insulation & Vapour Barrier > Halo & Poly ISO Halo & Poly ISO 4x8x1" HALO EXTERRA (R5) Item #: 05087200 $31.84 ea. Add to Cart 4x8x1-1/2" HALO EXTERRA (R7.5) Item #: 05089105 $42.24 ea. Add to Cart 4x8x2" HALO EXTERRA (R10) Item #: 05091010 $53.12 ea. Add to Cart 4x8x2" HALO SUBTERRA (R10) Item #: 05092915 $75.52 ea. Add to Cart 4x8x2" ENERFOIL POLY ISO INSULATION (R12) Item #: 05094820 $72.35 ea. Add to Cart