Can I mix wood fibre insulation and PIR? - CIJA? | Ep.46

Can I Just Ask… can I mix wood fibre insulation with PIR? 🌲🧱 It's one of the questions we get asked most in retrofit projects — whether you're working around an existing spec or trying to shave some thickness off a build-up. The short answer is: technically, yes. But "technically possible" and "the right call" aren't always the same thing, and there's a lot more than just the U-value to think about. Find out more in the video. 🎥 backtoearth.co.uk