4x8 and 4x4 sheets
Different thicknesses, some is seconds
$12 sheet or 10 or more sheets $10 sheet
I can load pallets with forklift
Polyiso insulation is a closed-cell rigid foam board made from polyisocyanurate, a thermoset plastic, and is widely used for thermal insulation in roofs, walls, and HVAC systems due to its high R-value per inch and moisture resistance.