The Pressure-Utilized Compartmented Cavity System (PUCCS) is the ultimate insulated rainscreen technology, providing moisture control and drainage while also controlling air leakage. It is designed for non-combustible construction. As a true rainscreen system the patented circular drainage pattern enables it to pressure-moderate. The system is intended for non-wood substrates, and may be installed in either a one-step method with mechanical fasteners, or a two-step method without.