Hi all! I'm putting in a limecrete floor in a stone barn renovation (removed the previous stone/concrete stone floor already). I want to put underfloor heating in using the recycled foam glass and limecrete slab. I had the suggestion of making the limecrete slab using cork aggregate as per st astier product sheet (https://www.saint-astier.com/produits/beton-de-chaux-liege/). Does anyone have feedback on whether this makes sense for an UFH limecrete slab? Do I actually want better thermal performance if the slab should be acting as thermal mass? Also the product sheet has only nhl5 and cork 3-15mm but no fines/sand below that. Seems odd to me (I tried contacting st astier but no answer so far).
Any feedback appreciated thanks!
Any feedback appreciated thanks!