DuPont

DuPont, corporately headquartered in Wilmington, Delaware, is a global materials company whose construction business offers solutions for the building envelope.

Its building brands include Styrofoam extruded polystyrene insulation, Tyvek breathable membranes and Froth-Pak and Great Stuff sealing foams.

These insulation, air and water barrier and sealing systems are used in residential and commercial buildings across the country.