Air / Moisture Barriers

StoGuard is a fluid applied barrier membrane used to protect wood or gypsum based sheathings, cmu, sheathing joints, rough openings and transitions. The StoGuard product family offers 2 types of fluid applied barrier systems,  vapor permeable and vapor impermeable (or vapor barrier).  Selection of  permeable or impermeable air / moisture barrier systems depends upon the climate that the structure is located in, and the design of the wall assembly (See Tech Hotline 0806 - BSc Vapor Barrier FAQ for more information about proper use of impermeable vapor barriers)

Why Air Barriers?

The purpose of an air barrier in walls is to minimize air intrusion and leakage through the wall construction. Because air contains water vapor, an air leak can allow large quantities of moisture to transport through relatively small openings. Any unsealed tears, holes or penetrations become avenues for air leakage. StoGuard air barrier helps to construct an airtight building envelope, minimizing the risk of moisture problems - decay, corrosion, loss of insulation value, mold growth and indoor air quality (IAQ) -  problems that can occur because of air leakage and condensation. And because StoGuard is fluid applied and structural, it won't rip or tear from the structure.

Why are moisture barriers important for your project?

Moisture barriers in walls protect against the transfer of incidental water into the building. They shield moisture-sensitive components, such as wood or gypsum-based sheathings, during construction and in the event of a breach in the outer wall covering, such as a crack in stucco. StoGuard is a moisture barrier that keeps damaging liquid water from penetrating and saturating the sheathing.

StoGuard is a fluid applied air barrier and moisture barrier that:

• Is a commercial grade membrane that seals and protects your building
• Is ICC code recognized for performance
• Helps prevent up to 40% energy loss according to the Department of Energy
• Protects sheathing and CMU
• Is used behind EIFS, stucco, brick, vinyl, cement board, siding and metal panels
• Meets requirements of the Air Barrier Association of America and is included in their specifications