$64.99 Owens Corning 1-in x 4-ft x 8-ft Extruded Polystyrene Foam Board Insulation in the Foam Board 
Johns Manville AP Foil Polyisocyanurate Foam Board Insulation (Common: 1.5-in x 4-ft x 8-ft 
Pactiv (Common: 1-in x 2-ft x 8-ft; Actual: 1-in x 2-ft x 8-ft) R5 Unfaced Polystyrene Foam 
