As building codes become more complex in their requirements for protection against moisture damage and unwanted air movement, contractors need systems that are quick and easy to install while still providing excellent performance over a building’s lifetime. Air and moisture barrier systems (AMBs) can offer seamless protection for entire wall assemblies, regardless of region or climate.
One such new and improved product is StoGuard® VaporSeal™. A high-build, vapor permeable, fluid-applied membrane, it is used to provide backup protection for porous cladding materials. It also protects joints and rough openings behind all types of claddings, and provides an air barrier beneath continuous insulation to meet prevailing energy codes.
The reformulated product offers the following:
- A Class I Vapor Barrier (retarder) with high build at 40 mils DFT(dry film thickness)
- A water-vapor permeance less than 0.1 perm
- Easy and fast application with airless spray equipment up to 80 mils WFT (wet film thickness); it can also be roller-applied
- Elongation greater than 500%
- Enhanced low-temperature crack-bridging
VaporSeal is NFPA 285 compliant and resists mold growth. It boasts a water-based, low-VOC formulation that is environmentally friendly and easy to clean up. Designed for application over CMU and sheathing, it can also be used under claddings such as metal panels, cement board, vinyl, wood, brick and stone.
Research has shown that controlling moisture and air leakage through the building envelope is critical to achieving high building energy efficiency. Unlike building wrap barriers that are penetrated by staples and fasteners used for their attachment, so-called seamless systems utilizing products such as StoGuard® VaporSeal™, better control air and moisture to improve building performance and occupant comfort.