On Fri, 25 Jul 2003 14:26:21 +0100, Fishter
wrote:

Hi steve
In you wrote:

Screw some thin ply over the top off the whole lot. Watch out you don`t
screw into any pipes or cables :-0

Would ordinary ply be alright, or is marine ply a better option for the
damp environment?

I think the reason the chipboard has started to curl up is because it gets
damp and is not treated in any way.

Quite right, but it's not just "curling up", what is happening is that
wet has got at it and it is expanding and disintegrating. Water
resistant grade should have been used, or preferably wood floorboards.
You will have to replace it sometime, either now or when someone's foot
goes through it!! At least find out why it's getting wet and put a stop
to that in the meanwhile. Since the sanitary ware is in place on it,
fitting ply (of dubious merit) is at least as difficult as re-doing the
job properly.

--
Phil Addison
The uk.d-i-y FAQ is at http://www.diyfaq.org.uk/
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