Ok, after removal of skirting, facings and stops leave a 10mm gap around perimeter and at door posts and end panels in kitchen leave a 2-3mm gap and fill with Silicon. Is that correct?
Update -- customer no longer wants to pay for or have a decoupler installed. I've advised it would be of benefit. They have said they understand pros and cons but aren't willing to pay for it. Since its not mandatory on timber floors unlike screeds I'm going to continue with job.