The maker of ZIP System® coated sheathing and tape claims that its product prevents water intrusion while installing 40% faster than DuPont™ Tyvek® HomeWrap®. Naturally, we wondered if it was true. So we contracted three respected independent third-party labs to put the ZIP System® to the test against Tyvek® HomeWrap®. The results? Nothing outperforms Tyvek®.
Not so fast.
Despite claims, ZIP System® didn't install 40% faster than Tyvek® HomeWrap®. The truth was closer to 0.25%. And some installation stages took much longer than Tyvek®.
A fastener too far.
Installing ZIP System® coated sheathing comes with the risk of over-driven fasteners, each of which creates an entry point for water over the life of the structure. With Tyvek® HomeWrap®, flanged fasteners prevent over-penetration.
Gaps, wrinkles and fish mouths.
A typical ZIP System® installation requires a quarter-mile of taped seams that can funnel water into the wall system. Tyvek® HomeWrap® only needs taping where sections overlap.
ZIP System® tape is prone to stress and tears at inside corners, creating yet another place for air and water to get into the wall. Tyvek® HomeWrap® folds easily into corners—forming a continuous barrier against air and water infiltration.
The truth about ZIP System®.
Third-party testing revealed that the ZIP System® is prone to leaky tape seams, over-penetrated nail holes, damp sheathing and drips around the jambs and studs.
Since most construction-related litigation is due to water damage, problems like these should be a big concern to any builder.
Proven in millions of installations through over 40 years of service in the field, DuPont™ Tyvek® HomeWrap® delivers excellent performance and is as easy to install as ZIP System® coated sheathing and tape.
For a superior weather barrier that's fast and dependable, insist on DuPont™ Tyvek® HomeWrap®.