A code-compliant and tested water-resistive barrier, like Barricade® Wrap and Barricade® Wrap Plus™, can stop moisture that penetrates the siding of a building from infiltrating and accumulating within the wall system. Moisture in the walls is a problem because it can damage the integrity of a structure and impact the health of its occupants.
Siding is the first protection against water entering the walls of a building or home. However, even moderate wind-driven rain or snow will drive water through the tiniest cracks in siding. Therefore, as the second line of defense against water entering a building or home, it is essential to install correctly, and according to code, a tested and high-quality continuous water-resistive barrier, like Barricade® Wrap or Barricade® Wrap Plus™ house wrap, under the exterior wall veneer.
The harmful and damaging consequences of either not using or improperly installing an untested water-resistive barrier is a build up of moisture within the wall system. Water accumulation within the wall leads to the growth of rot and mold. Rot degrades a structure and mold is unhealthy to the occupants of the building.
A properly installed, code-compliant and tested water-resistive barrier is permeable and allows moisture within the wall system to evaporate, which ensures the integrity and indoor environmental quality (IEQ) of the building or home.
The success of a water-resistive barrier is dependent on the contractor following the building codes for water-resistive barrier installation. Also, daily inspections and prompt repair of any defect in the water-resistive barrier is critical to the barrier’s performance. In fact, in many regions, a building inspection of the water-resistive barrier is required before the contractor can install the siding.
A best practice for installing a water-resistive barrier behind the siding is to follow the codes established by the 2018 International Building Codes (IBC) and the 2018 International Residential Code (IRC), which mandate the requirements for water-resistance and vapor permeability.
Furthermore, high-performing water-resistive barriers, like Barricade® Wrap and Barricade® Wrap Plus, pass the following tests for air-resistance, water-resistance, permeability, UV-resistance, and tensile strength. These are all required traits to ensure the successful performance of a water-resistive barrier.
A correctly installed, code-compliant, and tested water-resistive barrier can prevent an accumulation of moisture within a wall system and ensure the health and durability of a home or building. Both the IBC and IRC dictate the use of a water-resistive barrier behind the exterior veneer, installed per manufacturer’s instruction. In addition, the use of a tested, high-quality barrier is key to a water-barrier success.
Barricade® Wrap and Barricade® Wrap Plus house wraps are both excellent high performing water-resistive barriers. Barricade® Wrap and Barricade® Wrap Plus house wrap meet and exceed the requirements of the IBC 1402.2 and IRC R703.1.1. They are also air- and moisture-resistive, permeable, UV-resistant, and have high tear strength.