Dry rot

[nickkellymetal]

Hi, posted last year about a continuing dry rot fight Ive been engaged in for about 8 months now. I cannot understand how it can keep coming back. My sub floor is absolutely dry as a bone, literally. It hasn't rained in weeks and been unusually warm, and still it continues to spawn fruiting bodies. I check the sub floor usually once a week, but left it slightly later this time as I hadn't noticed anything growing for quite a while, I went to check today and boom, a fairly large fruiting body sat on a bone dry wall surrounded by bone dry timber! Does anyone have a clue where I'm going wrong?

Details:
It's a mid terraced house with 2 fully clear, large, air bricks at each end of the house, producing a noticeable draft under the floor. There is no water ingress whatsoever. The wall affected is a party wall. Wall has been chemically treated numerous times. All timber has been treated also. Worth mentioning that I only ever see fruiting bodies, no tendrils or patches of mycelium.

The black staining on the bricks is from where I have found fruiting bodies in the past. The first time I found it, there were about 12 of them on the wall.

Thanks

 

[Matt Green]

Hello nickkellymetal my old friend,
I've come to talk with you again,
Because a sporophore, softly creeping,
Releases spores while you are sleeping,
And the rot that is hidden underneath a concrete floor
Still remains
Within the solum of next door.

There's a load of timber debris under the floor next door- it's feeding on that. Any builder that would think doing that job was a good idea is the sort that would not scrupulously ensure there was no timber waste on the sub-site before infilling.

Is that end joist in contact with the wall? I can't tell from the angle.

You are doing everything right. It's going to take some time yet- the fungus has to exhaust whatever food supply it has.


M.