Problem: Wish to sand and finish c.60 yr-old floorboards but find they have been cut-nailed to a concrete 'screed'. This has been treated with some sort of black bitumen and doesn't seem damp but the nails have rusted and rotted the boards around the heads of a lot of them. There are also up to 10mm gaps between some of the boards. The holes and gaps have previously been filled with white filler; the room was 'carpeted'. Problems of colour matching/blending new boards/filler accepted -
I can think of various solutions: get them all up - replace the really bad ones - re-lay with adhesive (or re-nail) and fill any remaining cracks & holes; Leave all but really bad ones alone and do major crack and hole filling; lay a new floor on top; lay carpet again & move; but was curious as to whether anyone had encountered this type of flooring and their experiences with it.
I can think of various solutions: get them all up - replace the really bad ones - re-lay with adhesive (or re-nail) and fill any remaining cracks & holes; Leave all but really bad ones alone and do major crack and hole filling; lay a new floor on top; lay carpet again & move; but was curious as to whether anyone had encountered this type of flooring and their experiences with it.