The pictures here show the process involved when installing Karndean, or any LVT, over a new solid floor that has residual construction moisture present. A Damp Proof Membrane (DPM) is applied to the sub-floor, then primed when dry and overlaid with a smoothing compound. When the smoothing compound is dry we can start to mark out the Keyline Border and commence the installation.
I think we could stop at the DPM … it’s a lovely colour blue don’t you think ??