With easy-to-apply DuPont products, you’ll be equipped to seal out drafts and air leaks, block bulk water, and promote drying – keeping everybody inside comfortable in all types of weather.

Moisture management starts with the wrap. HardieWrap® weather barriers deliver the performance you've come to expect from James Hardie.

MFM Building Products provides an entire "envelope" of weather barrier products and flashing products.

The TYPAR® Weather Protection System provides superior air and water holdout, exceptional moisture vapor transmission, superior tear strength and optimal surfactant resistance PLUS The TYPAR Advantage.

The range of DuPont™ Tyvek® flashing products are durable, tough, tear-resistant and deliver superior protection from water damage and perform through extreme temperatures (they can even handle prolonged exposure to UV light).