Boric acid or concrobium in stud cavity before insulation (in cold climate) – GreenBuildingAdvisor

Hi folks,

Curious if anyone has ever tried spraying exterior stud cavities with Boric acid spray (or similar) prior to insulating in a colder climate (I’m in climate zone 5/6). 

We got the roof on and (mostly) sealed on our new build in the winter months, but there’s a lot of moisture in the assemblies including the stud cavities. It’s going to be impossible to let it all naturally dry out fully before insulation goes in. 

I’d like to spray something in the stud cavities before insualting (we’re going to use rockwool) to prevent mold and pests in the future. I know Rockwool itself is mold resistant, but want to prevent mold from growing on the studs, back of the drywall, etc.

I’m pretty sure in warmer climate zones builders often spray the cavities with something to reduce termite risk before insulating. What is that? And would a similar technique work in a colder climate? Especially if being sprayed in the winter?

Thanks in advance!