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About Air and Moisture Barriers

Air and Moisture Barriers

StoGuard® is an efficient assembly of products engineered to create an air barrier and water-resistive barrier sheathing membrane in wall construction. By protecting the backup assembly first, this fluid applied air barrier provides superior protection against moisture intrusion and air leakage, delivering significant energy savings in hot and cold climates.

StoGuard® Air and Moisture Barrier Systems

Seamless protection for the entire wall assembly

Air Barriers are required in building walls, regardless of region or climate. Controlling air leakage through the building envelope is critical to achieving high building energy efficiency. Research has shown that air barriers can play a larger role in energy efficiency than increasing insulation thickness. But unlike building wrap barriers that are penetrated by staples and fasteners for their attachment, the StoGuard® System provides seamless control over air and moisture to improve building performance and occupant comfort.

System Features

  • Air & Moisture Barrier
    Protects the wall from moisture intrusion minimizing risk of water damage and associated repair costs.
  • Air Barrier
    Minimizes airflow through the wall construction reducing risk of condensation caused by air leaks.
  • Energy Efficient
    Lowers energy costs by reducing air leakage and heating/cooling loads.
  • Fire Tested
    Compliant with ASTM E-84, NFPA 285 and ASTM E-119 for use on non-combustible construction.
  • Easy to install
    Spray-on or roll-on application with standard airless pump reducing labor cost and avoiding any investment in special equipment.
  • Durable
    Fully adhered and attached to substrate. Does not tear with exposure to weather during construction or while in service.
  • Low VOCs
    With its water-based formula meets strict SCAQMD and LEED VOC requirements.
  • Extended Exposure
    Protects fully exposed substrate for an extended period of time.
  • Indoor Air Quality
    Helps to protect against growth of mold and mildew.

Permeable/Impermeable Fluid-applied Air & Moisture Barriers

The StoGuard® system includes either vapor permeable or impermeable fluid-applied membranes. Determining whether you need a permeable or impermeable air barrier primarily depends on climate and wall design.

Sto EmeraldCoat®

Fluid-applied, vapor-permeable building membrane used under a variety of mechanically attached claddings, including cement board, wood, vinyl, brick, stone and metal panels.

Sto Gold Coat®

Fluid-applied, vapor-permeable membrane used under adhesively attached continuous insulation to create a continuous air and moisture barrier for gypsum and wood based sheathings or CMU.

Sto Gold Coat®TA

Trowel-applied, vapor-permeable membrane used under adhesively attached continuous insulation to create a continuous air and moisture barrier for gypsum and wood based sheathings or CMU.

Sto AirSeal®

Fluid-applied, vapor-permeable membrane designed for CMU and sheathing, as well as metal panels, cement board, vinyl, wood, brick and stone.

Sto VaporSeal®

Fluid-applied vapor barrier used to provide superior protection against moisture intrusion and air leakage.

Sto ExtraSeal ci®

A trowel or spray-applied, vapor-permeable membrane that can be used as a water-resistive air barrier and as a continuous insulation (ci) adhesive, compatible with most commonly available rigid insulation boards.

Sheathing Joint Treatment

The StoGuard® system includes sheathing joint treatments optimized for a variety of conditions and trades. Proper protection of sheathing joints is critical for minimizing the risk of moisture intrusion and unwanted air movement.

StoGuard® RapidFill™

One-component waterproof air barrier used to provide sheathing joint treatment and protection.  Moisture cure properties and resistance to cold conditions help to avoid costly delays related to inclement weather.  Liquid-applied technology allows for easy installation at complex geometric conditions.

StoGuard® Fabric

Non-woven cloth reinforcement that is used with Sto GoldCoat®, Sto EmeraldCoat® or StoGuard® VaporSeal® to treat sheathing joints and rough openings. Available in 4- and 6- inch widths.

Sto Gold Fill®

Flexible, trowel-applied material that is applied over StoGuard® Mesh to treat sheathing joints and and rough openings.

StoGuard® Mesh

Glass fiber self-adhesive mesh for use with Sto Gold Fill®. Available in 4.25- and 9.5-inch widths.

Waterproof Transition Membrane

StoGuard® Transition Membrane

A flexible membrane for detail areas to provide flexible connections and continuity of the air barrier assembly. StoGuard Transition Membrane can be installed more simply than alternative products without the need for primers or termination mastics.  StoGuard Transition Membrane  Also functions as a secondary weather seal at joints in construction.

Rough Opening Protection

The StoGuard® system includes rough open protection optimized for a variety of conditions and trades. Proper protection of rough openings joints is critical for minimizing the risk of moisture intrusion and unwanted air movement.

StoGuard® RapidSeal™

One-component waterproof air barrier for rough opening protection. Rapid drying time usually allows same day installation of windows or top coating with other wall assembly components.  Moisture cure properties and resistance to cold conditions help to avoid costly delays related to inclement weather.  Liquid-applied technology allows for easy installation at complex geometric conditions such as wood buck or back dams.

StoGuard® RediCorner™

Preformed fabric piece that speeds installation for corners of rough openings. Used with either Sto Gold Coat®, StoGuard® VaporSeal® or Sto EmeraldCoat®.

StoGuard® Tape

Self-adhering waterproof air barrier material composed of spunbond polyester fabric laminated to rubberized asphalt adhesive. Available in 6- and 9- inch widths.

Brochures | 3-Part CSI specifications

Brochures for Air and Moisture Barriers

Brochures for Air and Moisture Barriers
Preview Description Format Size Open
Documentation Center
Specifications, System Bulletins, Details, Detail Booklet, Technical Hotlines, Installation and Repair, White Papers, Brochures & Case Studies, Videos, Product Bulletins, LEED, Code Reports, SDS, Color Collections
  504 kB Open

3-Part CSI specifications for Air and Moisture Barriers

3-Part CSI specifications for Air and Moisture Barriers
Description Format Size Download
Specifications
Specialty Systems, reStore, Air and Moisture Barriers, Coatings, Backup Wall System, Stucco Systems, Cement Board Stucco Systems, Continuous Insulation Systems
  504 kB Download


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07 27 00 - Air Barriers
07 27 26 - Fluid-Applied Membrane Air Barriers