Hi i am going for underfloor heating in my extension its 6.5m by 3.8 internally. just after some advice on what to use. ie finish the concrete sub floor how much lower? what thickness kingspan? whats good gear for a single room UFH etc what will i need. from a quick search this aft i have seen a few systems with routered insulation instead of clips and screed. i intend to use engineered wood floorboards so would this be a better way than clips and screed?
