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Tyvek's properties—such as being difficult to tear but easily cut, and waterproof against liquids while allowing water vapor to penetrate—have led to it being used in a variety of applications. Tyvek is often used as housewrap , a synthetic material used to protect buildings during construction, or as personal protective equipment (PPE).
Air barriers control air leakage into and out of the building envelope.Air barrier products may take several forms: Mechanically-attached membranes, also known as housewraps, usually a polyethylene-fiber or spun-bonded polyolefin, such as Tyvek is a generally accepted moisture barrier and an air barrier (ASTM E2178).
A building wrapped with Tyvek-brand housewrap during construction. Housewrap (or house wrap), also known by the genericized trademark homewrap (or home wrap), generally denotes a modern synthetic material used to protect buildings.
The simplest, least expensive package is a paper envelope. More expensive versions add a transparent window to the envelope allowing the disc label to be seen. [21] The envelope can also be made out of spunbonded polyethylene (trade-named Tyvek) which is stronger and lighter than paper and is resistant to moisture. [22]
Originally Tyvek was a housewrap material. It is now used in many fields, including roofing. Tyvek was discovered in 1955 by DuPont in the USA. Hope that helps — Preceding unsigned comment added by 86.131.40.216 15:29, 26 September 2006 I am the grandson of Walter Steuber. He developed Tyvek® in spite of what the DuPont history page says.
It’s called sticker shock. And if you haven’t been to a dealer’s showroom since before the pandemic, you might want to prepare yourself.
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