Weather-Resistive Barriers provide a key function in a building's exterior wall system.
This is due to its capacity to control moisture and air flow, as well as improving energy efficiency.
There are two predominant weather-resistive barrier technologies:
Asphalt Saturated Kraft - The Jumbo Tex® product line produced by Fortifiber is widely used by builders and architects to protect homes and commercial buildings from the problems caused by water intrusion and excessive moisture. It provides an effective weather-resistive barrier behind stucco and brick – as well as wood, fiber cement and vinyl siding.
Polymeric – Tyvek® is the most recognizable product in this category. It is available in large rolls (sheets) and is used to protect buildings during and after construction. It provides an air barrier between the outer siding of a building and the building itself. Tyvek allows water vapor to pass through but liquid water and air cannot. It provides an excellent water protection barrier for the building.
Rain Screen WRB systems are used with increasing frequency in current construction projects.
This construction provides an air gap between the building and its siding.
This air gap allows air circulation between the WRB barrier and the siding.
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