Innovating from the Inside Out

Innovating from the Inside Out | DuPontTM Tyvek®
Just behind a building’s siding, DuPont™ Tyvek® weather barriers help keep air and water out but are breathable, so any moisture that does get into the wall can escape to the outside.

Every once in a while, you'll find a starkly different envelope in among your mail. It's smooth, silky, even, and any attempt to tear it will just end in frustration. This is DuPont™ Tyvek®, and while it's great at protecting important documents in the mail, it's also indispensable in making homes energy efficient and comfortable. DuPont™ Tyvek® HomeWrap® is one of the most effective ways to keep heating and cooling costs down, no matter where you live.

Here’s how: Tyvek® weather barriers feature a unique structure consisting of millions of microscopic pores. These pores are large enough to allow tiny moisture vapor molecules to escape but too small for bigger water (think rain!) and air molecules to get into the wall. All this adds up to better protected buildings that are more energy efficient, comfortable and long lasting.

By keeping the indoor air in and the outdoor air out, Tyvek® weather barriers increase the effectiveness of HVAC systems—an important step in reducing a building’s carbon footprint, because the typical HVAC system accounts for 37% of a building’s energy use.

Tyvek® protection goes beyond buildings, spanning industries. Among its many uses, the technology is woven into protective apparel that helps keep workers safe from hazardous materials—and hazardous diseases like Ebola. It’s an integral part of sterile packaging for medical and pharmaceutical materials. Even everyday items like envelopes rely on Tyvek® for its one-of-a-kind durability.

In 2015, Tyvek® HomeWrap® received a Green Builder Media Readers Choice Award in the building wrap category, pushing the envelope in making homes more energy efficient.