PUCCS = Pressure Utilized Compartmented Cavity System…from DuRock (December 01, 2005)

This pressure-moderated EIFS provides the benefits of a rainscreen, and also the option to have a continuous air barrier for the building envelope of any EIFS clad wall assembly. PUCCS was developed to make the design of rainscreen walls easy for the designer and the contractor… The contiguously curved cavity of the system is formed within the insulation layer, thus providing both drainage and venting for pressure moderation.