and turned into a gas by the sun. In addition, during hot summer months, warm moisture-laden air (vapor) can get driven into the wall by solar heat towards the cool conditioned and drier air on the inside of the home. The driving force of the moisture vapor by the sun into the wall envelope is a phenomenon known as “inward solar vapor drive.”
The vented air space created by Barricade Drainage Wrap’s unique surface provides a stop gap that blocks the transport of vapor by equalizing the air pressure across the entire space, thus relieving the pressure exerted on the drainage plane (sheathing and house wrap).
Perfectly designed for stucco and EIFS
Because of conventional house wraps smooth surface, stucco has the ability to bond tightly to the house wrap when used by itself. This tight contact creates something known as the “tenting effect” and can destroy the water repellency of house wrap because of the pressure exerted by the stucco when it is directly applied. The stucco creates “capillary continuity” and as a result, the house wrap cannot properly defend against water intrusion when used as a single layer.
When a primary layer of felt paper or paper-backed wire lath is properly installed over the surface of Barricade Drainage Wrap, a “bond break” is created and thus dramatically improves and enhances the drainage properties of the stucco system.