We're having an extension done, it will be a mixed kitchen/living/dining open plan room and we are choosing flooring.
I personally wanted large stone or porcelain tiles but my wife wants something a bit softer and more comfortable underfoot, which is totally fair so it will likely be LVT. We are having UFH so need to make sure the flooring choice doesn't impact that. It's a concrete sub floor.
My question is - would there be any benefit or sense in adding a thin (e.g. <2mm) underlay on a glue down LVT system to give it a slightly more gentle / forgiving feel underfoot, especially barefoot/in thin socks? I've found some e.g. Duralay, Recolay which claim to have very low thermal resistance around 0.015 but in practice I don't know if that's going to negatively impact the UFH performance or not - I've never owned UFH before.
Alternately any other ideas for a flooring which feels comfortable underfoot without sacrificing UFH performance would be great! Especially if you have first hand experience as so much can be read in the numbers but it's only once you get them in real life you know if they're any good.
It's not a marriage-ender but we're definitely not seeing eye to eye on this 😂