Hi, Looking to fit wooden flooring over electric UFH. Substrate is a mix of concrete and timber, with moisture of <2% - but might not stay that low, so thinking a DPM would be a good idea. Question Is it better to float on a DPM/underlay like this: http://www.screwfix.com/p/stikatak-...wood-laminate-flooring-underlay-3mm-10m/41337 Or, glue down this DPM and then glue flooring onto it: http://www.screwfix.com/p/damp-proof-membrane-1000ga-black-4m-x-25m/88322 Advice appreciated! Crawf (Presumably would be completely mad to go for solid wood instead of engineered?)