Phil wrote:
Thanks everyone for all the replies. We've already removed and
burned
all the wood from the room - the problems set in we think when the
roof
leaked and was replaced - but it was apparently wet for a very long
time (we weren't the owners then). As far as the dry rot is
concerned,
there were no fruiting bodies, and no sign of any red spores.
However,
the skirts had "cubed" and there was mycelium on the plaster, leading
up to the joists (hidden behind tiles). The main affected areas were
around the shower cubicle. We've gutted the room and will be
refitting
it very soon. I do plan to coat all blockwork and all new wood in
the
appropriate chemicals, and probably use plasterboard on the walls.

As long as you do deal with the damp, there is no need to chemicalise
anything. If you dont address the damp, nothing you do will prevent
re-rot, but chemicals can delay it.


IIRC copper is effective against plant lifeforms, so you can treat it
with copper sulphate in emulsion paint if you want.


NT