Tks for response. Its a horizontal gap. Some 10 years ago there was a problem with the lounge floor which was bitumen, we had Structural consultants in to check it out and finished up with new floor and that problem was resolved and we should really have had the conservatory floor done at the...
The tils floor (concrete base) of my conservatory has sunk slightly at the point where it joins the house by a double patio door. There is a gap of approx 20 mm along the width of 12'. Without relaying the whole floor what would be the best way to rectify things