I'm having a side extension to a small end terrace built 1780, including downstairs shower/ toilet and cloakroom. I had anticipated that float & skim would be used, however the builder is trying to convince me that dot and dab is better. I'm not happy with this, particularly as one of the rooms will be more prone to damp i.e. the shower room (may even choose to have it as a wet room) and am concerned that a) his plasterers are not skilled enough for the more complex skills requirements of float and skim and b) he is trying to save £££ on his quote.
Any advice much appreciated