Vinyl sheet flooring onto new concrete floor

Hi I would leave longer than a week the reason being there will be a lot of moisture within the new concrete and screed floor and this will cause an issue. After the main screed floor has cured and dried you will then need to latex as this gives a smooth finish and will not be so dusty and gritty as screed if at all possible leave to dry for a minimum of 3 weeks Hope all goes well with your project Simon SKC Construction Ltd

A concrete base takes on average 1mm per day to dry, it's a minimum of 4 weeks before you can even do a moisture (rh%) test, to fast track installation of a new flooring you must wait the 4 weeks then perform a rh% test to determine the next course of action, you will first need to mechanically remove the laitence from the concrete then it will absolutely require a surface dpm and a flooring installers screed. This is not work you can do yourself without experience as one pin prick in the dpm is a failure, otherwise you wait for roughly 18 months before it dries to 75% rh naturally, all this information is British Standard practice and stated in all manfacturer instructions which can be seen at your local library.