4” X 4' X 8' SQUARE EDGE BLUE STYROFOAM BOARD - Insulation

Distribution International supplies Polystyrene Board like our 4” X 4

Owens Corning FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing 20WE - The Home Depot

2Pack 6061 T651 Aluminum Sheet Metal 8 x 15 x 1/16 (0.06”) Inch Flat Plain Aluminum Plate Covered with Protective Film, Heat Treatable Rectangle 1.5mm Aluminum Metal Plate for Industrial, Craftin

Controller & Executive Controller

Owens Corning FOAMULAR 150 1-1/2 in. x 4 ft. x 8 ft. R-7.5 Scored

Rigid Foam vs. Fiberglass Insulation: What's the Difference?

Kingspan GreenGuard 4 x 4' x 8' Square Edge Foam Board Insulation

Owens Corning FOAMULAR 150 1 in. x 4 ft. x 8 ft. R-5 Scored Square Edge Rigid Foam Board Insulation Sheathing 20WE - The Home Depot

Owens Corning FOAMULAR 250 4 in. x 4 ft. x 8 ft. R-20 SE Rigid Foam Board Insulation 3J - The Home Depot

Foam Board Insulation - R Values and Types