I hope someone can help, I have had a new living room built, wet UFH pipes laid on top of insulation and a DPM. The UFH was pumped to 5 bar prior to screed pour . A 70mm ish sharp sand+cement+fibre mix screed layer was recently laid. I want to install Karndean flooring in this room, ideally ASAP. I have been scouring the internet and there appears to be lots of articles and post and alot conflict. Can someone with experience please help answer the following. 1.) Initial dry period : A) should we wait 5 days before opening any doors and or windows, to aid strengthening of the mix? B) Should the floor have plastic or sprinkled small amounts of water for the first few days to aid curing. Does this make much difference? 2.) Curing: I read this should dry at approx 1mm per day. (i.e 2 months) Should all windows and doors be open (in this lovely weather) to help aid drying times? Or could this affect the strength? 3.) UFH : Should the UFH be left off completely until dry, or should the UFH be put on minimum temperature (With 1 degree added per day) after a month or two to help aid drying? 4.) Sealing: The contractor stated he usually lays Unibond sealer on to the screed to prevent damage from foot traffic. a) Is it worth doing ? - Will this affect drying times? - This room will be out of bounds b) Will this affect Karndean adhesives, or any prep for the flooring? 5.) Karndean A) A floor stated you can lay a DPM and top level screed after getting to 75% humidity, will this cause any issues ? I.e how does the screed continue to dry if it's been sealed off? Will it affect the UFH etc. Thank you.