Can you use cavity wall insulation on a house with a suspended timber floor which as a crawl space, want happen to the air vents:) will it become damp?


Thanks crewe

Quote:

---

Originally Posted by crewe

can you use cavity wall insulation on a house with a suspended timber floor which as a crawl space, want happen to the air vents:) will it become damp?


thanks crewe

---

If you are referring to a baloon frame structure, the underfloor crawl space openings need to be blocked off before injecting wall insulation. This also applies to pole frame construction where the flooring ledgers are exposed into the wall cavities above in some cases. Nm