ᐅ How long does screed need to dry before installing a vinyl flooring?

Vinyl flooring is planned for the living areas. The painter doesn’t want to start yet—the screed has been in place for about 4 months—because he thinks it’s not dry enough. He says bubbles might form later, which would mean having to remove everything again. He claims you can tell because the screed still looks blotchy. Is that correct?

There is a standardized residual moisture measurement for these kinds of questions. After the measurement, you will know exactly whether you need to wait longer or if you can already proceed with covering.

@ "Heidi1965":
It’s quite amazing how the arguments differ!
However, I’m assuming that you did not make a typo and that in your previous post you did not accidentally write "months" instead of "weeks." If it was a typo, it could indeed be that a cement screed (not a calcium sulfate screed) has not yet sufficiently dried.
Please accept this: a screed (whether a cement screed or a calcium sulfate screed) that is not dry—and therefore not ready for covering—after 4 months of curing under normal conditions, will never become dry (and thus ready for covering).
Please ask the painter on what basis (moisture measurement method and with what result) he assumes that the subfloor is still not dry.
If he does not refer to a “CM measurement” in his reply, then at least you will know that the delay in installing the floor covering is not due to the subfloor, but solely due to the installer.
Regards, KlaRa