• (and I've just finished an online course on it too).

    This sounds interesting, how much was it?

  • Free! I should have said it was the one @hoefla posted, so thanks to her for that.
    https://woodfibreinsulation.co.uk/courses/

    I did the retrofit one, which was especially relevant for me as I'm planning on using wood fibre batts for external and internal wall insulation, with hemp flax combi jute in between the floors because it has a higher heat capacity and better soundproofing qualities.

    With it being free my expectations weren't high but it was actually really useful.

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