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Tony Bryer
 
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Default under floor polystyrene

On Tue, 28 Mar 2006 09:46:59 +0100 Tim Lamb wrote :
In this particular case my daughter has a London flat with vinyl strip
wood effect glued to chipboard over a 25mm layer of foam. Directly in
front of the kitchen sink is a join in the chipboard which does not
appear to be tongue and grooved. Needless to say, movement has caused
the vinyl to crack badly.


I had exactly the same thing on our church kitchen floor. The fix was to
cut some narrow slots across the join with a router about 75mm long and
12mm deep. Then drop a suitable dowel (I just used plated wood screws)
in each slot and fill with fibreglass resin. This effectively stitches
the two ends together - no further movement.

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