Home > Shop > Drywall & Insulation > Insulation & Vapour Barrier > Rigid Foam > 2x8x1" CLADMATE CM20 SHIPLAP (R5) 2x8x1" CLADMATE CM20 SHIPLAP (R5) Item #: 05056020 Mfr #: 1CM28T3 $18.96 each Checking Inventory Add to Cart Overview: TYPE 3 - 20PSI