Help Selecting WRB to Use Under Rain Screen.
I was all excited to use Huber Zip on a 1000 sqft unit I’m building but upon closer inspection of the plans I realized that the engineer spec’d the stronger plywood version that has higher sheer strength. However it seems to only come in 8ft lengths that won’t work for my structure. I also think im going to have a hard time sourcing it here in California as no-one seems to use it.
So I’m back to CDX. I was going to do Hardie plank siding over a rain screen but not sure what WRB to use in the application. I have used a lot of “Blueskin” but apparently it has horrendous problems with mold. I like the air sealing ability of Zip but don’t know if I can afford to use a self adhesive now.
Can anyone suggest a good, middle of the road WRB to use under a rain screen?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part