Customer has knocked a wall down between a living room and conservatory to give one larger area. I had previously put down Quick step in the conservatory about 12 years ago. I re-tested the conservatory with a Tramex and nowhere was over 3 (as previous). There is a height difference between the two areas and he has put down chipboard in the conservatory to compensate and has glued it t&g to float over the sub floor with no dpm under. I am putting down 22mm engineered and wouldn't normally use an underlay with a dpm over a wood sub floor - but in this case???? Any thoughts please.
how do you want to fit the wood? id want to fully bond down so i would rip up the chipboard and screed the floor to level, liquid dpm just to make sure. dont like floating woods at all , im assuming its a t&g system not a click together on 22mm. or if its a wood subfloor on the lounge side what about screwing down the chipboard then ply over both areas then naildown? hate chipboard as a subfloor it squeaks and turns to weetabix if damp.
Misinformed on this as he had put a dpm under the chipboard. He has sealed the joints as well so hopefully they won't squeak. It would have taken a lot of screed to make up the level - about 36 bags. I am putting down a 22mm engineered oak floor so will use an underlay without a dpm.
