Square Pants,
I highly suggest you get in contact with the Zip rep in your area. There are some very huge rebates right now. And he will have further info for you about the panels and tape. Try to get some free shirts too, I'm wearing one right now
We use 7/16" OSB on our roofs under comp, framing 24" oc. That is the norm here, but we upsize to 5/8" under tile. The last
frame we did we used the 1/2" zip on the roof and it was nice and flat and plenty stiff. It was also very grippy.
The house we are on now is all 12-12, so I'll be curious to see how grippy it is in cold weather. We'll use toe boards anyway to sheathe the roof.
I was looking at the invoices and it is about double for the roof panels. I need to get the bid from our roofer to see how much less it is using this system than the last time we built
this house and didn't use the Zip.
For us, I feel that the wall panels are a no brainer. The roof panels make sense if you can't schedule roofers in and its going to be wet. I think they make sense, but not every time. Our roofer is going to start using them on reroofs though because they can dry in as they sheathe the roof. So for things like that I think it makes perfect sense.
For us, it'll take 3-5 days to sheathe the roof of the one we are on, so we can dry in as we go, but the roofers will probably roof it in 2 days. It is 150 sheets. We are trying to seal the deal with a potential custom and the customer was looking at our website photos and really likes the idea of the zip. It does make the house pop from the street.
Rebate link
http://www.zipsystem.com/getting-started/rebates.aspx
