Water Resistive Barrier Siding

Water infiltration can lead to rot of structural elements mold and poor indoor air quality.

Water resistive barrier siding.

Steel sided buildings require a weather resistant barrier. Steel siding is exceptionally resistant to high winds and the impact of flying objects. Hardiewrap weather barrier may be used as both a water resistive barrier and as an air barrier in accordance with nationally recognized residential and commercial building codes as specified in esr 2658. Steel siding is fire resistant.

Hardiewrap weather barrier is installed over the sheathing beneath the exterior siding to reduce water and air infiltration. In fact by varying. It sits just under the siding. A rain screen is constructed by fastening wooden boards vertically on top of the weather resistant barrier wrb to provide an air gap between the building and the siding creating a drainage plane.

The best solution is a fully adhered weather barrier that seals to the substrate seals to itself at overlaps and seals around the thousands of fasteners used to attach siding trim and other decorative features. Install vertical strips of folded over asphalt felt every 16 or 24 inches on center. The latest tip for creating an airspace between siding and the water resistive barrier wrb is simple and inexpensive. Depending on the choice of asphalt felt 15 or 30 and the number of folds a variety of thicknesses can be created.

Allow for drying of the exterior. Prevent air flow in out of the interior. A water resistive barrier wrb is a material installed between the sheathing or studs if there is no sheathing and the siding. Keeping water out of the interior.

Water resistive barrier defined. Steel siding itself is waterproof. First a water resistive barrier wrb is a protective material installed between the sheathing and the siding. A siding rain screen is an important part of siding replacement and siding repair.

The layer beneath the siding the water resistive barrier or wrb is what will protect the plywood or oriented strand board osb sheathing from any water that sneaks in. Weather barriers or more accurately water resistive barriers keep bulk water away from vulnerable building components and allow walls to dry at the same time. Many builders have turned to huber s zip system sheathing a type of osb with a coating of resin impregnated kraft paper. This article explains the need for water resistant barriers on building exterior walls and explains the concept of a rain screen.

It is designed to prevent water from reaching building components that could be damaged by moisture. However the product is susceptible to allowing moisture intrusion into the wall system through condensation and water infiltration. A proper barrier will be responsible for doing the following.