On 23/06/2012 17:37, Phil L wrote:
gremlin_95 wrote:
snip

Thanks everyone, we have stripped the lino back and there isn't any
sort of growth underneath, the wood floor seems to be slightly damp
on the surface so we have left it without the lino to allow it to dry
out and see if anything happens after this.
It's Serpula lacrimans, IE dry rot, and the fact that you've seen the
fruiting body, means that it's already well established.

The dry rot won't be visible on the surface of the floorboards, but when you
take them up, you'll see white 'roots' growing in every direction, over the
underside of the floorboards, joists, backs of skirtings and architraves,
door frames etc, and the longer you wait, the further it's spreading.
If this is a downstairs bathroom, the rot will be spreading to the first
floor joists and upwards (it can go through and along brickwork joints for
several metres without the requirement of timber) if it's a 1st floor
bathroom, the rot will be spreading both upwards and downwards.

It starts off in wet timber but soon spreads to normal, dry timber and
leaves it totally dried out and cracked - it resembles a crocodiles back,
like a cubic pattern, and you can poke a finger straight through what was
originally a 8 X 3 timber joist.


We've removed the toilet and stripped back the floor, got a specialist
coming in the week

Thanks for the help guys.

--
David