I'm looking at replacing a 6x4m floor in a 1920's vintage house. Existing floor is a mixture of original floorboards plus many patched areas, apparently at several different times. This was all covered first by lino over hessian, then later by carpet over foam underlay over the old lino. Floor had some creaking, so up came the various layers. The floor is not in good condition. Some termite eaten sections, though no evidence of present activity. Floor is quite springy now the coverings are up. Property was inspected for termites and no activity found.
I'm looking at floating flooring packs as sold by Mitre 10 etc. Two questions:
1. I was thinking of covering the old floor with approx 9-12mm ply, then installing the floating floor. Is this a bad idea due to the present condition of the floor? I was thinking the ply sheets (nailed or glued?) would bind the old boards together and remove the springiness. Right or wrong?
2. Is the whole floating floor idea not a good one and would I be better just removing the old boards and laying standard T&G floorboards over the old joists?