A 2800 sq. ft. insulation application would require 4 cases with a 1/4-inch continuous bead. Not shipped to Alaska or Hawaii. Used to attach insulation to practically any surface - Steel, aluminum, pained metals, galvanized, galvalume, wood, fiberglass, FRP and concrete. Super Metal Sealant sets up fast! Immediate tack and grab, holds up insulation on a vertical surface with no fasteners. In 60 minutes, adhesion sets up well. Performs well in cold and hot installs. You can use fewer or no nails and staples. It will save you time and improve insulation R-value by reducing holes from fasteners. It has a superior hold to liquid nails and it performs better in low temperatures. This means fewer problems jobs and longer installation season.