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.

Will not tear like building wraps

StoGuard® products are built to stand the test of time, with each component designed to last the life of the structure. In head-to-head test with leading building wraps, StoGuard® fluid-applied air and water barrier withstood twice the water-column pressure and did not fail.

23936294
80,000,000

Square Feet Installed to Date

KEY COMPONENTS & FEATURES

Air & Moisture Barrier

A seamless, fluid-applied barrier that improves energy efficiency and resists moisture intrusion

Sheathing Joint Treatment

Featuring a one-component, fabric or mesh based product solutions designed for a superior and seamless joint treatment and sheathing protection.

Transition
Membrane

A versatile membrane for detail areas that provides flexible connections and continuity of the air barrier assembly.

Rough Opening
Protection

Featuring a one-component, fabric, or mesh based product solutions designed for a superior and seamless rough opening protection.

Image

Rough Opening Protection
with mesh covered with
fill product

Rough Opening Protection
no Mesh Needed

Rough Opening Protection
with Fabric embedded in
air and moisture barrier

Transition Membrane

Sheathing Joint
Treatment

Air & Moisture Barrier

Substrate

Click the + for more info

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

Tested to meet CAN/ULC S101 and CAN/ULC S134 criteria for use on non-combustible construction.

Easy to install

Roll-on or spray application with airless spray equipment avoiding investment in specialized 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 mould and mildew.

Permeable/Impermeable Fluid-applied Air & Moisture Barriers

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

  • Sto Gold Coat
  • Sto Gold Coat - TA
  • StoGuard VaporSeal R
  • Sto Flexyl

Sto Gold Coat®

Sto Gold Coat® is a ready-mixed flexible waterproof air barrier membrane for use in StoTherm® ci Systems. It is applied directly to vertical above grade wall sheathing and concrete masonry, and functions as a waterproof air barrier when combined with StoGuard® joint and rough opening treatment.

PERMEABILITY: Vapour Permeable
SUBSTRATE TYPE: Glass-Mat Gypsum Sheathing, Exterior Plywood, OSB, Concrete Masonry Units.
TYPE OF APPLICATION: Roller-applied / Spray-applied

DOWNLOADS

Product Bulletin
SDS
LEED
SPEC CA 1000G - DOC
SPEC CA 1000G - PDF

Click here for more information on this System

Sto Gold Coat® TA

Sto Gold Coat® TA is a ready-mixed flexible, trowel applied waterproof air barrier membrane for use in StoTherm® ci Systems. It is applied directly to vertical above grade wall sheathing and concrete masonry, and functions as a waterproof air barrier when combined with StoGuard® joint and rough opening treatment.

PERMEABILITY: Vapour Permeable
SUBSTRATE TYPE: Glass-Mat Gypsum Sheathing, Exterior Plywood, OSB, Concrete Masonry Units.
TYPE OF APPLICATION: Trowel-applied 

DOWNLOADS

Product Bulletin
SDS
LEED
SPEC CA 1000G - DOC
SPEC CA 1000G - PDF

Click here for more information on this System

StoGuard® VaporSeal R

StoGuard® VaporSeal R is a ready-mixed, flexible waterproof air and vapour barrier membrane. It is used on vertical above grade walls behind various claddings including, stucco over metal lath/building paper, brick, metal panels, cement board, and others.

PERMEABILITY: Vapour Barrier
SUBSTRATE TYPE: Glass-Mat Gypsum Sheathing, Exterior Plywood, OSB, Concrete Masonry Units.
TYPE OF APPLICATION: Roller-applied

DOWNLOADS

Product Bulletin
SDS
LEED
SPEC CA 1000V - DOC
SPEC CA 1000V - PDF

Click here for more information on this System

Sto Flexyl

Sto Flexyl is an acrylic-based, fiber-reinforced, flexible adhesive and waterproofing for use on prepared concrete, masonry, plaster, gypsum and cement sheathing surfaces. Combined with Portland cement, Sto Flexyl provides multiple functions, including: waterproof adhesive and base coat in StoTherm® ci wall systems, crack repair material as well as a foundation water-proofer.

PERMEABILITY: Vapour Permeable
SUBSTRATE TYPE: Glass-Mat Gypsum Sheathing, Exterior Gypsum Sheathing, Concrete Masonry Units.
TYPE OF APPLICATION: Trowel-applied

DOWNLOADS

Product Bulletin
SDS
LEED
SPEC XXXX - DOC
SPEC XXXX - PDF

Click here for more information on this System

Sheathing Joint Treatments

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
  • StoGuard Fabric
  • Sto Gold Fill
  • StoGuard Mesh

StoGuard® RapidFill

StoGuard® RapidFill is a one-component air and moisture barrier and waterproof material used to seal sheathing joints, seams, cracks, and transitions in above grade wall construction. Rapid drying time will usually allow for same day installation of other Sto air barrier components.

PERMEABILITY: Vapour Permeable
SUBSTRATE TYPE: CMU, Concrete, Brick Masonry, Gypsum Sheathing, Wood, Galvanized metal and Cement based Sheathings.
TYPE OF APPLICATION: Apply with a caulking gun.

DOWNLOADS

Brochure
Install Guide
Product Bulletin
SDS
LEED
VIDEO - RapidSeal vs RapidFill

StoGuard® Fabric

StoGuard® Fabric is a non-woven cloth reinforcement. It is part of the StoGuard® assembly and is used with either Sto Gold Coat®, StoGuard® VaporSeal R to treat sheathing joints, inside and outside corners and rough openings. Available in 4- and 6- inch widths.

PERMEABILITY: N/A
SUBSTRATE TYPE: Suitable for application of Sto Gold Coat® or StoGuard® VaporSeal R.
TYPE OF APPLICATION: 4” (101 mm) wide fabric at sheathing joints and 6” (152 mm) wide fabric at rough openings and inside and outside corners.

DOWNLOADS

Product Bulletin
4'' - SDS
6'' - SDS
LEED

Sto Gold Fill®

Sto Gold Fill® is a ready-mixed, flexible, joint treatment and air barrier material for vertical above grade walls. It is applied to rough openings, corners, and sheathing joints in walls with StoGuard® Mesh.

PERMEABILITY: Vapour Permeable
SUBSTRATE TYPE: Glass-Mat Gypsum Sheathing, Exterior Plywood, OSB.
TYPE OF APPLICATION: Trowel-applied / Spray-applied

DOWNLOADS

Product Bulletin
SDS
LEED

StoGuard® Mesh

StoGuard® Mesh is a glass fiber self-adhesive mesh for use with Sto Gold Fill®. Available in 4.25- and 9.5-inch widths.

PERMEABILITY: N/A
SUBSTRATE TYPE: Glass-Mat Gypsum Sheathing, Exterior Plywood, OSB.
TYPE OF APPLICATION: 4.25” (108 mm) wide mesh at sheathing joints and 9” (241 mm) wide mesh at rough openings and inside and outside corners.

DOWNLOADS

Product Bulletin
4.25'' - SDS
9'' - SDS
LEED

Transition Membrane

StoGuard® Transition Membrane

StoGuard® Transition Membrane is a flexible air barrier membrane for use on vertical above grade walls. It is used with StoGuard® air and moisture barrier membranes including Sto Gold Coat® and Sto VaporSeal R. It is used at detail areas to provide flexible connections to achieve continuity of the air barrier assembly. It also functions as a secondary weather seal at joints in construction.

PERMEABILITY: N/A
SUBSTRATE TYPE: CMU, Concrete, Brick Masonry, Glass-Mat Gypsum Sheathing, Exterior Plywood, OSB.
TYPE OF APPLICATION: For continuity at transitions, installed with any of the StoGuard® fluid-applied air barrier products.

DOWNLOADS

Brochure
Install Guide
Product Bulletin
SDS
LEED
VIDEO

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
  • StoGuard RediCorner
  • StoGuard Tape

StoGuard® RapidSeal

StoGuard® RapidSeal is a one-component air and moisture barrier used to protect rough openings and for transition detailing in above grade wall construction. Rapid drying time will usually allow for 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.

PERMEABILITY: Vapour Permeable
SUBSTRATE TYPE: CMU, Concrete, Brick Masonry, Gypsum Sheathing, Wood, Galvanized metal and Cement based Sheathings.
TYPE OF APPLICATION: Apply with a caulking gun.

DOWNLOADS

Brochure
Product Bulletin
SDS
LEED
VIDEO - RapidSeal vs RapidFill
VIDEO - RapidSeal vs Self Adh. Membrane
VIDEO - Demo

StoGuard® RediCorner

StoGuard® RediCorner is a preformed fabric piece used in the corners of the rough openings for quicker installation. Used with either Sto Gold Coat® or StoGuard® VaporSeal R.

PERMEABILITY: N/A
SUBSTRATE TYPE: Suitable for application of Sto Gold Coat® or StoGuard® VaporSeal R.
TYPE OF APPLICATION: Placed on the inside and outside corners of rough openings.

DOWNLOADS

Product Bulletin
SDS
LEED

StoGuard® Tape

StoGuard® Tape is a self-adhering air and moisture barrier material composed of spun bond polyester fabric laminated to rubberized asphalt adhesive. The polyester fabric strengthens the material while providing a surface to which most coatings will bond. Available in 6- and 9- inch widths.

PERMEABILITY: N/A
SUBSTRATE TYPE: Smooth surfaces, including primed Concrete, CMU, Glass-Mat Gypsum Sheathing, Exterior Plywood, OSB, Cement Board, Asphalt saturated Felt and most House Wraps.
TYPE OF APPLICATION: Apply on rough openings to provide protection.

DOWNLOADS

Product Bulletin
6'' - SDS
9'' - SDS
LEED
REFERENCE PROJECTS

Continuous Insulation

Learn about our StoTherm® high-performance Systems.
LEARN MORE

Specialty Finishes

Browse our vast collection of Standard and Specialty finishes.
LEARN MORE

Sto Studio

See what Sto Studio has to offer for your project.
LEARN MORE

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Operating Hours:
Monday-Friday | 8:00 am – 5:00 pm (EST)


VISIT US

Sto Canada Ltd.
Sales Centre Toronto
1821 Albion Road
Unit 1-2
Etobicoke, ON
M9W 5W8
Phone: (416) 855-0460

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