For several years, we’ve been using the ZIP System on our exterior framed walls. ZIP is a structural sheathing that provides a moisture/vapor barrier that provides for an incredibly tight house.
The benefits? Have you ever seen house wrap on a home after a few weeks – torn, blowing in the wind, holes? That’s because it is normally weeks between the time a vapor barrier is installed and the time the siding goes on. And what happens during that time? Typical house wrap, tacked on to the home, takes a beating.
With the ZIP System, the barrier is applied in the manufacturing process, so you simply can’t remove it, even if you want to. Seams are secured with tape that is almost like super-glue – again, you can’t remove it.
ZIP a superior product. Along with our framing methods, it saves energy by sealing the house well.
And it looks good. Here’s the difference…
NO! 
YES, a Battlefield Home!
Here’s link to the ZIP System energy savings sheet.