I have sanded my living room floor. There are now some rather draughty
spaces between floorboards. Please don't mention glue and sawdust or
folded pieces of plastic strips. I have tried those Grrrr!
Yes, but one you probably won't want to do.
The only real cure is to lift and relay the floor using the old boards "and
floor cramps to get things really 'squashed up'" and put in any new boards
next to the walls - and if the boards are *NOT* tongued and grooved, then
you will be wasting your time doing that.
Or you could try laying some of the 'engineered' wood floors that are
available now on top of the existing board and at right angles to them.
Sorry about that - but as wood is a 'living' thing - it's always difficult
(if not impossible) to stop movement in it.
The professional fix is to cut wooden fillets to fill the gaps and then glue
them on one side only to allow for natural movement of the boards but this
needs high level planer/router skills to get a good enough fit to exclude
most of the draughts. A quicker and easier method is to use Gap Master
Flooring Filler, a silicone free mastic which is supplied in cartridges in
various wood shades but its life expectancy depends on the amount of
movement between boards, and there is always some movement. Presumably this
are plain boards so are without the benefit of tongues and grooves which
will provide some support for mastic and stop it from falling through?
I would also recommend the timber 'slips' This is what I plan to do
with my floor, you could cut them off a board of similar thickness. If
you use a Skill saw and angle the blade slightly your slips will be
slightly wedge shaped in cross section. You will be able to tap them
into the gaps tightly and then use a sharp plane to carefully take off
any protruding high spots.
On boats we would use a product called Sikaflex, a flexible mastic type
is tough and weatherproof, not that you'll have a lot of weather in your
I can't say for sure it'll be suitable but it's worth considering.
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