I get that but from my experience wood movement cannot be prevented by fixings alone, hence why all solid wood furniture has to be designed to allow for it. Its curled up at the edges because the timber has dried out and shrunk causing it to lift at the outside edges. In winter it will be flat again...
Not sure what will happen if you fix it down now and it expands again in winter?
I don't think it would take that long to remove the boards and refit properly?
I get that but from my experience wood movement cannot be prevented by fixings alone, hence why all solid wood furniture has to be designed to allow for it. Its curled up at the edges because the timber has dried out and shrunk causing it to lift at the outside edges. In winter it will be flat again...
Not sure what will happen if you fix it down now and it expands again in winter?
I don't think it would take that long to remove the boards and refit properly?