Hi I am in flooring The floor does not have to be water level you have a allowance of 3mm in 1mt or 6mm it 2mt or 9mm in 3mt get the picture The subfloor does have to be hard and smooth But you CAN NOT put the kitchen on the floating floor, the floating floor needs to be able to expand and contract with a min of 10 mm expansion or 1.5mm for every 1mt so a 10mt long room needs 15 mm expansion gap at ether end. Ask the kitchen supplier if he can leave the kick boards of a put them on are the floor is installed

Hi Josette Polyurethane based sealers often turn yellow when they are exposed to UV. The same thing can happen with oil based white paints where they are NOT exposed to UV and the tannins turn them yellow. I would speak with the installer and find out what product was specifically used and then make enquiries with the supplier of that product. Cheers

R u laying boards over the concrete or beside?

Before applying anything, industrial vacuum clean the floor, and wash with a mop and bucket. This is to remove all the concrete dust that would of accumulated. Then apply your chosen finish as per the product instructions. Why would you have skirting boards installed prior to doing anything with the floor? If your walls are plastered brick, you don’t need skirting boards. If your walls are timber studs covered in gyprock, then wait until your floors are dealt with before installing skirting boards. It will make any floor finish easier to apply. If you decide you want to put tiles, floorboards or carpet down, then the skirting boards will have to be removed anyway. If skirting boards are included in your build, then ask the builder to provide, but not install.