In July I had oak laminate flooring installed throughout most of the ground floor of the 50 year old house we are renovating. The work was carried out by a firm of carpenters who are competent and have made a good job of other woodwork around the house. They have layed a lot of this flooring in new properties on my son-in-law's building site where there have been no problems.
The boards were layed over a mixture of concrete screed and old wood block according to the manufacturer's instructions. Vapour barrier underlay was used and expansion gaps were left at the edges.
The run of the boards is front to back and there is a transverse passage that runs from one end of the house to the lounge at the other end, so there must be about 100 boards side by side in the entire width. There is a large entrance hall in the middle of the house and the floor has developed a substantial hump (about 1 inch!) over 4-5 boards in the middle of it. It's like a trampoline.
I suspect that this is due to the onset of cooler, damper weather in the autumn. We are all at a loss as to exactly what has gone wrong and more importantly how to fix it with the least damage to the floor and the skirting boards. Any ideas from the flooring experts?
The boards were layed over a mixture of concrete screed and old wood block according to the manufacturer's instructions. Vapour barrier underlay was used and expansion gaps were left at the edges.
The run of the boards is front to back and there is a transverse passage that runs from one end of the house to the lounge at the other end, so there must be about 100 boards side by side in the entire width. There is a large entrance hall in the middle of the house and the floor has developed a substantial hump (about 1 inch!) over 4-5 boards in the middle of it. It's like a trampoline.
I suspect that this is due to the onset of cooler, damper weather in the autumn. We are all at a loss as to exactly what has gone wrong and more importantly how to fix it with the least damage to the floor and the skirting boards. Any ideas from the flooring experts?