Thought I would share these photos of the work done on our conservatory floor yesterday by the builders. Basically they made the base too low originally so it was about an inch below the level of our living room floor. The old patio doors have been taken out so we want the flooring (LVT) to be continuous. The builders came back yesterday and were supposed to build the floor up to where it's meant to be. Instead they seem to have created a kind of ramp with latex screed. There is none at the far end and it gets gradually thicker towards the living room. There is still a lip where the patio doors used to be and there are some big ridges where they have spread the stuff out. I put a level on it and as you can see it is not level at all! It's still not as high as the living room floor either. I can't believe they have left it like this, it looks terrible. Question is, should I get them to try and fix it again or get someone else in to do it?
To be honest, the builder has done ok, but let your intended flooring installer take over from here, he should be able to get the entire floor like glass with another coat of screed, ready to fit the flooring. Builders tend not to pay great attention to detail when it comes to floors, it's part of their genetic make-up.
I agree with sidney in that builders are unlikely to hit the standard of finish ideal for lvt as it's fairly specialised to eliminate the ridges while applying the screed. I also suspect your living room floor still needs to be prepped ( prob 6mm for plywood if it's a wooden/chipboard floor) so more work required anyway.
What the builder has done in my opinion is half a job in the hope they will get away with it. This new area is well below the existing floor level and needs to be raised. It's a simple job really! Not scratch a few bags on making sure you get rid of the ridge (which we all know won't work like that) it looks more like a ramp than a levelled floor.
Looks not bad to me off a builder. As long as he's used a decent screed and primed it. Then you won't have a problem screeding over it. Are you getting a pro in to do the LVT as you will need a damp test doing on the screed.
I've been out to see it Daz, going to leave it to dry out as its a 50mm screed then put down a hygrometer. I've asked the customer to find out what product they used as I would need to go over it ,if I get the work that is! Personally I would prefer to use jumpax on this job now.
It's reasonably smooth apart from the ridges I mentioned, but why would they make it intentionally sloping? Seems like it's probably harder to do that than to cover the whole floor and make it flat.