Who said on??? I said in the crack behind the wall. That is why spray foam has a long tube for application. If someone has to go into the wall for service spray foam isn’t going to be a problem.
You’re absolutely begging for moisture problems if you put spray foam in there. It should be open exactly like it is, albeit cut closer to the wall. That really won’t stop bugs anyway, you’re much better off treating the perimeter and plugging exterior access holes.
Post a picture of yours and show us how it’s done, I like to learn when I’m wrong. I haven’t touched a hydronic heating system in ages, but we used to recommend rockwool when I did it. Again though, that’s for insulation purposes, not bugs
Who said on??? I said in the crack behind the wall. That is why spray foam has a long tube for application. If someone has to go into the wall for service spray foam isn’t going to be a problem.
You’re absolutely begging for moisture problems if you put spray foam in there. It should be open exactly like it is, albeit cut closer to the wall. That really won’t stop bugs anyway, you’re much better off treating the perimeter and plugging exterior access holes.
Ugh not even worth it. OP do whatever the hell you want.
Post a picture of yours and show us how it’s done, I like to learn when I’m wrong. I haven’t touched a hydronic heating system in ages, but we used to recommend rockwool when I did it. Again though, that’s for insulation purposes, not bugs