Comparing weather barriers
A closer look.
Micrograph views of perforated house wrap and Tyvek® HomeWrap® reveal stark differences. The ragged "microperforations" in perforated house wrap compromise its ability to resist air and water penetration, which can lead to potential mold, water damage and higher energy costs.
Perforated house wrap 350X magnification
Tyvek® HomeWrap® 350X magnification