ResCom® Air barrier boards are engineered to deliver more than one level of performance and are very adaptable to be used as both a vapor permeable air barrier with the use of breathable sealers and moisture barrier membranes, and as a water resistive barrier when fully sealing with acrylic waterproof binder sealer or by utilizing the ResCom® factory pre-sealed (PS) range of barrier boards. All ResCom® barrier boards have been independently tested and approved for exterior use under the following standards for weather resistance: