Underlay & Insulation under a Laminate Floor?

April 73

I'm hoping to get some advice on a flooring dilemma.
We moved into a house a few weeks ago which has solid maple floors on battens. The floor has shifted over the years, there are gaps in the boards, gaps under the skirtings & awful creaking & squeaking.
So we're contemplating re-doing the floors with laminate having priced sanding & refurbishing the current floor.

But we're getting conflicting ideas.
*take up the floor & lay the laminate on plywood over the battens.
*put down kingspan insulation board between the battens & under the plywood for sound & heat insulation
*take up the battens altogether & start again. I think this involves plywood still & would leave us with a problem with the architraves.

Can anyone point me in the best direction? Or give opinions on the options. We're looking at 10mm minimum laminate.

The kingspan insulation quote is about €1000 so I really need to know if it'll be worth the outlay.

And whether we live with the battens or really start again & build up from the concrete.

Many thanks!

dodzy

Fix the creaking as best as you can then just put down your flooring membrane and floor over the existing boards. The creaking will be less evident once the new flooring is down even if you make no attempt to improve it before laying the new laminate, especially if you're using 10mm. Save your money.