Quote Originally Posted by mikenot View Post
My answer would be usually not to both questions. From my reading and research, floors are only roughly leveled and then a thick layer of mortar laid under the tiles, rather than using tile adhesive on a flat level floor. And DPC is not “needed” because Thai houses are usually raised off the ground on post and beams unlike western homes built on an in ground slab.
Yeah, Mike and TBH, I completely forgot about 'what we do in UK'!.

As you can see below...hes fitted it anyway. now...I would not be surprised to see DPC as well!!