$58.99 Dow Extruded Polystyrene Foam Board Insulation (Common: .75-in x 2-ft x 8-ft; Actual: .75-in x 2 
Shop Rmax Polyisocyanurate Foam Board Insulation (Common: 1-in x 4-ft x 8-ft; Actual: 1-in x 4 
Thermasheath Rmax Thermasheath-3 1-1/2 in. x 4 ft. x 8 ft. R-9.6 Polyisocyanurate Rigid Foam 
