Lightweight thermal insulation board composed of a closed-cell polyisocyanurate (polyiso) foam core bonded to reinforced aluminum facers with clear coating for limited protection against oxidation on each side. Price: 2.20/ square foot - Can Deliver in Bay Area CA CONSTRUCTION APPLICATIONS Exterior Walls (Type I-IV): Masonry Steel Stud FRTW Stud Wood Stud (Type V) Exterior Ducting Industrial Laminate Panel (e.g. tanks)