Should I treat wood before laminating?

[OM2]

We're having new laminate put on.
Someone suggested treating the wood underneath.
It is worn in parts and wide gaps and some parts have decay of wood - this was covered with hardboard + wooden insulator.

If so... what should I go for, for treating? It seems a little expensive!

AND how long to dry? Is it dangerous because of odour? (The ones I have looked at said they were odourless.)

Thanks.

 

[Nige F]

You need to lift a board or two and find out what's causing the decay. Wear and gaps are no problem. Decay could be !