In this project, the exterior cladding and sheathing was being repaired. As the wall studs were empty after the batt insulation was removed, we were able to drill small holes and inject the spray foam. This provides great results, as there is no waste, and the foam completely fills the cavity. We use a thermal imaging camera to inspect each stud cavity to ensure it is full-filled. This wall now has R24 of open cell spray foam, so it is completely air-tight! All of this results to no drafts, eliminates stack effect potential, and is very quiet too.