Air Barrier Association of America
ABAA is a complete resource for air barrier education and technical information. Air barriers contribute to green, durable buildings, significant energy savings, and improved air quality and indoor comfort. Specify the ABAA Air Barrier Quality Assurance Program and make sure that your air barrier is built right, the first time.
BASF Wall Systems 
Enershield-HP is a vapor permeable, ready-mixed flexible waterproof coating that is roller-, brush-, trowel- or spray-applied directly to approved wall substrates. By integrating flashing and air/water-resistive barrier functions, ENERSHIELD-HP creates a seamless, monolithic barrier system. ENERSHIELD-HP can be used with most substrates and claddings, minimizing material transitions and optimizing both performance and economy.
DuPont - Tyvek 
DuPont™ Tyvek® Fluid Applied WB is a vapor permeable air and water barrier membrane. It is applied at 25mils and has a vapor permeability of 25 perms. Fluid Applied is a low VOC, single-component elastomeric polymer product with superior elasticity and flexibility. It is easily applied in one coat and has extremely low shrinkage during curing.
Epro Waterproofing Systems
Application systems: concrete and block walls, blindside, beneath slab, between slab and deck. Designed with: superior strength: simplifies leak detection, reduces the effects of future movement, redundancy of protection, maximizes drainage planes, custom design for special requirements. Complete redundancy: monolithic and fully bonded barrier, multiple waterproofing barriers, multiple protection and drainage courses.
Henry Company 
Henry AirBloc®, Blueskin SA®, Blueskin Breather and Foilskin® provide a complete line of permeable and non-permeable, air, and water barrier products. This comprehensive product line includes self-adhered, liquid applied and UV resistant products. Combine with Henry waterproofing and roofing membranes for a single source watertight building envelope. Systems can qualify for LEED credits.
Insulation Solutions
AquaCheck LAB is a vapor permeable barrier that allows proper drainage in various types of wall systems and promotes drying of the wall cavity in either direction. AquaCheck LAB provides protection from the effects of energy loss, condensation, efflorescence, bacterial growth and mold. It can be spray, brush or roller applied.
W. R. Meadows
The AIR-SHIELD™ line provides sheet-applied, liquid-applied, vapor-permeable air barriers to completely protect a building from air, vapor and moisture infiltration. AIR-SHIELD provides a complete above-grade air, vapor and water barrier on a variety of construction materials. AIR-SHIELD is a key component in building-envelope construction, and is available in low-temperature and all-season formulations.
PROSOCO
New PROSOCO R-GUARD™ blocks destructive and costly air and water movement into and out of the building envelope. You prevent conditions for mold and other expensive wall-component deterioration. Stopping air leaks out of the building can reduce buildings' natural gas costs by more than 40 percent, and electrical bills by over 25 percent.
Quickflash Weatherproofing Products
Quickflash products offer a significant improvement over the current method of caulking sub-exterior electrical, plumbing, and HVAC vertical wall penetrations. Breakdowns in caulking and reliance on proper caulking of penetrations is one of the primary sources of water intrusion for new home construction. Our products come with a 10 year limited warranty for water intrusion.
Rubber Polymer Corporation
The Rub-R-Wall brand offers a complete line of quality polymer coatings from the foundation to the rooftop of residential and commercial buildings. Products include below grade waterproofing, airtight permeable and non-permeable air and vapor barriers, water repellents and crack injection system.
Sto Corp. 
Sto Guard™, a liquid-applied air barrier, provides superior protection against air leakage in a variety of applications, including underneath brick, wood, vinyl, cement siding and exterior insulation and finish systems and even cement stucco if used in conjunction with a bond breaker.
Tremco Sealants & Waterproofing
Tremco ExoAir™ Air Barrier Systems provide the first totally integrated, single-source solution to ensure superior building performance, including high-performance silicone sealants for an airtight seal throughout the building envelope. This high-performance, integrated system effectively blocks air infiltration/exfiltration, vapor transmission and water penetration to protect building components, and can significantly improve energy efficiency.
4specs Discussion Forum - Great place to ask questions about specifications, products and technical data. Free - no registration required to read or post (subject to moderation).
See also:
03 0580 - Under-slab Vapor Retarder Membranes - Sheet membranes applied under the concrete slab, includes radon and methane barriers
07 2127 - Enclosed Cavity Foamed Insulation
07 2630 - Vapor Resistive - Sheet Applied
07 2660 - Vapor Resistive - Fluid Applied
07 2730 - Vapor Permeable - Sheet Applied
07 2800 - Rainscreen Drainage Systems
BASF Wall Systems
Enershield-HP is a vapor permeable, ready-mixed flexible waterproof coating that is roller-, brush-, trowel- or spray-applied directly to approved wall substrates. By integrating flashing and air/water-resistive barrier functions, ENERSHIELD-HP creates a seamless, monolithic barrier system. ENERSHIELD-HP can be used with most substrates and claddings, minimizing material transitions and optimizing both performance and economy.
DuPont - Tyvek
DuPont™ Tyvek® Fluid Applied WB is a vapor permeable air and water barrier membrane. It is applied at 25mils and has a vapor permeability of 25 perms. Fluid Applied is a low VOC, single-component elastomeric polymer product with superior elasticity and flexibility. It is easily applied in one coat and has extremely low shrinkage during curing.
Epro Waterproofing Systems
Application systems: concrete and block walls, blindside, beneath slab, between slab and deck. Designed with: superior strength: simplifies leak detection, reduces the effects of future movement, redundancy of protection, maximizes drainage planes, custom design for special requirements. Complete redundancy: monolithic and fully bonded barrier, multiple waterproofing barriers, multiple protection and drainage courses.
Henry Company
Henry AirBloc®, Blueskin SA®, Blueskin Breather and Foilskin® provide a complete line of permeable and non-permeable, air, and water barrier products. This comprehensive product line includes self-adhered, liquid applied and UV resistant products. Combine with Henry waterproofing and roofing membranes for a single source watertight building envelope. Systems can qualify for LEED credits.
Insulation Solutions
AquaCheck LAB is a vapor permeable barrier that allows proper drainage in various types of wall systems and promotes drying of the wall cavity in either direction. AquaCheck LAB provides protection from the effects of energy loss, condensation, efflorescence, bacterial growth and mold. It can be spray, brush or roller applied.
W. R. Meadows
The AIR-SHIELD™ line provides sheet-applied, liquid-applied, vapor-permeable air barriers to completely protect a building from air, vapor and moisture infiltration. AIR-SHIELD provides a complete above-grade air, vapor and water barrier on a variety of construction materials. AIR-SHIELD is a key component in building-envelope construction, and is available in low-temperature and all-season formulations.
PROSOCO
New PROSOCO R-GUARD™ blocks destructive and costly air and water movement into and out of the building envelope. You prevent conditions for mold and other expensive wall-component deterioration. Stopping air leaks out of the building can reduce buildings' natural gas costs by more than 40 percent, and electrical bills by over 25 percent.
Quickflash Weatherproofing Products
Quickflash products offer a significant improvement over the current method of caulking sub-exterior electrical, plumbing, and HVAC vertical wall penetrations. Breakdowns in caulking and reliance on proper caulking of penetrations is one of the primary sources of water intrusion for new home construction. Our products come with a 10 year limited warranty for water intrusion.
Rubber Polymer Corporation
The Rub-R-Wall brand offers a complete line of quality polymer coatings from the foundation to the rooftop of residential and commercial buildings. Products include below grade waterproofing, airtight permeable and non-permeable air and vapor barriers, water repellents and crack injection system.
Sto Corp.
Sto Guard™, a liquid-applied air barrier, provides superior protection against air leakage in a variety of applications, including underneath brick, wood, vinyl, cement siding and exterior insulation and finish systems and even cement stucco if used in conjunction with a bond breaker.
Tremco Sealants & Waterproofing
Tremco ExoAir™ Air Barrier Systems provide the first totally integrated, single-source solution to ensure superior building performance, including high-performance silicone sealants for an airtight seal throughout the building envelope. This high-performance, integrated system effectively blocks air infiltration/exfiltration, vapor transmission and water penetration to protect building components, and can significantly improve energy efficiency.
Air Barrier Association of America
ABAA is a complete resource for air barrier education and technical information. Air barriers contribute to green, durable buildings, significant energy savings, and improved air quality and indoor comfort. Specify the ABAA Air Barrier Quality Assurance Program and make sure that your air barrier is built right, the first time.