Home > Shop > Drywall & Insulation > Insulation & Vapour Barrier > Rigid Foam > 2x8x3" CLADMATE CM20 SHIPLAP (R15) 2x8x3" CLADMATE CM20 SHIPLAP (R15) Item #: 05056080 Mfr #: 3CM28T3 $56.88 each Checking Inventory Add to Cart Overview: TYPE 3 - 20PSI