Weather Barriers

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Understanding Vapour Permeability

Understanding Vapour Permeability

See how the optimal level of vapour permeability – a key Tyvek® difference – helps promote drying, and protects against water damage and mold in wall systems.

Sustainable Buildings

Sustainable Buildings

DuPont Building Envelope systems are designed for use in sustainable buildings that last longer, while using less energy and fossil fuels.

Top Green Builder Media’s 2016 Readers' Choice Survey

Top Green Builder Media’s 2016 Readers' Choice Survey

DuPont Building Innovations products were named #1 in their categories in GreenBuilder magazine’s latest survey of green professionals.

LEED® Certified Building

LEED® Certified Building

DuPont™ Building Envelope system products can help contribute to a LEED® certified building by helping to seal the building envelope against both air and water infiltration.

Tyvek® Fluid Applied Product Availability Locator

Tyvek® Fluid Applied Product Availability Locator

A geographic overview of where to purchase Tyvek® Fluid Applied.

Choosing The Best House Wrap

Choosing The Best House Wrap

Compare the material science and performance of DuPont™ Tyvek® weather barriers with perforated wraps, to determine the best house wrap for vapor permeability and air and water holdout.

Building Science Experts

Building Science Experts

Meet the DuPont building science experts responsible for developing innovative, energy efficient building envelope products and knowledge solutions.

DuPont Building Science Collaborations

DuPont Building Science Collaborations

DuPont building science collaborations with industry organizations are central to developing more sustainable, innovative construction practices, standards, and codes.

Building Envelope Testing

Building Envelope Testing

DuPont building science has led to the development of portable wall assembly testing stations specially designed for real-world building envelope testing in a variety of challenging climates.

Building Envelope CEU: Take our new video CEUs right from our site on NFPA 285 and Fluid Applied Air Barrier Membranes.

Building Envelope CEU: Take our new video CEUs right from our site on NFPA 285 and Fluid Applied Air Barrier Membranes.

Stay up-to-date and earn hours towards your continuing education requirements with Building Envelope systems CEU for construction professionals. Take our new video CEUs right from our site on NFPA 285 and Fluid Applied Air Barrier Membranes.

Airtightness And Other Myths

Airtightness And Other Myths

Common misconceptions about building airtightness, R-value, and the value of a vapor barrier, with building science facts from the DuPontTM Building Knowledge Center.

Compare DuPont™ Tyvek® WRB to the ZIP System®

Compare DuPont™ Tyvek® WRB to the ZIP System®

Comparison shows Tyvek® weather barriers offer superior performance over ZIP System® Wall Sheathing in five key areas.

Building Envelope Solutions

Building Envelope Solutions

DuPont Building Envelope solutions apply building science to help residential contractors create more durable, energy-efficient homes.

Air Leakage Testing

Air Leakage Testing

Air leakage testing shows Tyvek® commercial air barrier assemblies exceed a range of requirements, when tested in accordance with ASTM E2357.

Controlling Air Leakage

Controlling Air Leakage

Tyvek® presents myths and facts about airtightness, and the impact of air leakage on energy use, durability, comfort and indoor air quality.

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