The ZIP System is an integrated structural sheathing with a factory-applied weather-resistive barrier. It is widely used for residential walls and roofs to create airtight and watertight structures.

Independent testing shows it performs extremely well as an air barrier.

There is no official U.S. ZIP code "155809." Standard ZIP codes are 5 digits, such as in Pittsburgh, or 9 digits (ZIP+4). If you are referring to a building product, it is likely the Huber ZIP System sheathing. Huber ZIP System Review

Eliminates the need for traditional house wraps like Tyvek.