Tyvek ® versus Perforated Wrap | DuPont™ Tyvek® | DuPont USA

Perforated Wrap

Tyvek versus Perforated Wrap Huff and Puff

CLAIMS ABOUT PERFORATED HOUSE WRAPS DON’T HOLD WATER

Many house wraps are made of a woven polypropylene slit film with a coating added to seal the weave in place. The result is essentially a non-breathable vapor barrier, which is not desirable for a house wrap. To overcome this, thousands of tiny holes are poked through the film, allowing for some vapor permeability. But the trade-off is that the holes compromise the wrap’s ability to resist air and water penetration, which can lead to the potential for mold, water damage and higher energy costs.

GO AHEAD, HUFF AND PUFF.

DuPont™ Tyvek® weather barriers have a unique structure that delivers superior air and water holdout and breathability, far exceeding code requirements. For more than thirty years, Tyvek® has set the performance standard and still does. Insist on DuPont™ Tyvek® for your new construction and reside projects. It’s no fairy tale.

DuPont™ Tyvek® weather barriers enlarged.

Water vapor can escape, while water droplets are too large to enter walls.

Perforated house wraps enlarged.

Holes are large enough to allow water droplets to enter walls.

Mark LaLiberte Water Bottle Demo

This short video, featuring Building Science Expert Mark LalIberte, demonstrates the differences between DuPont™ Tyvek® HomeWrap® and perforated wraps.

 

 

Not All House Wraps are Created Equal

DuPont™ Tyvek® housewrap is engineered to seal out air and water and allow the structure to breathe. DuPont™ Building Knowledge Center manager Laura Dwyer explains the important process of selecting a continuous weather barrier focused on mold prevention.

DUPONT TYVEK®. SUPERIOR PRODUCTS. UNPARALLELED SUPPORT

THE DUPONT™ BUILDING KNOWLEDGE CENTER

The DuPont™ Building Knowledge Center provides technical information and support and industry-shaping insights to help builders address the highest performance standards.

THE DUPONT™ TYVEK® SPECIALIST NETWORK

The DuPont™ Tyvek® Specialist Network is a national team of highly-trained field representatives, who deliver detailed information on DuPont™ Tyvek® Weatherization Systems products and offer on-site guidance and training to help you get your job gets done right.

DUPONT™ TYVEK® CERTIFIED INSTALLERS

DuPont™ Tyvek® Certified Installers are on-site DuPont air-and-water barrier product experts, able to provide installation services that can help seal the building envelope.