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Revolting yucky sticky stuff "growing" out of wall

(8 Posts)
duchesse Fri 28-Dec-12 14:20:28

We've had possibly one of the wettest years this house has ever seen in its 130 history, and there is a lot of mould growing on inside walls in our house in places we've never seen it before. The very large patch growing out of DD2's bedroom just about takes the biscuit though. DH has been up to check there no leaky roof etc and can't seen anything structurally wrong.

I'm going to try to describe the patch but may have to put up a photo. It's rather like sticky slightly dilute black treacle, oozing out of and down the walls. Poor DD2 is starting to only half -joke -- that somebody's been walled up there and is now starting to ooze their way out.

We've tried washing it off, but it just comes back. Over the last weeks it's spread over a larger and larger surface. My feeling is that it's some form of mould caused by damp seeping through what is probably old lime and horse-hair plaster. Has anybody else experienced this? Does anyone have any solutions or suggestions? Any advice gratefully received!!

SuoceraBlues Fri 28-Dec-12 14:23:47

Could there be an old abondoned chimney behind that bit ?

My house "blooms" wierd stuff, what you are describing is what happened on one bit of wall when LOTS of rain came down a disused chimney and a sort of soggy tar-ish substance leached through.

duchesse Fri 28-Dec-12 14:27:48

Suocera, I don't think it can be- the patch of wall in question is just next to a dormer window. The stuff oozing out might easily be tar though, that's a very good analogy.

IWipeArses Fri 28-Dec-12 14:32:43

Does sound like toxic mould.,mod%3D13&um=1&ie=UTF-8&hl=en&tbm=isch&source=og&sa=N&tab=wi&ei=eK3dUM_9PKac0AXck4A4&biw=1024&bih=540&sei=e63dUIPsJcOq0AXT64DgDw

SuoceraBlues Fri 28-Dec-12 14:41:04

ohh, I think IWipeArses mihgt have hit on something

"Black mould, which is scientifically known as Stachybotrys atra, is a black or dark green, tar-like mould"

Are you all feeling well? This stuff sound really nasty.

duchesse Sat 29-Dec-12 10:09:51

It doesn't look like that- it's more like treacle really. I suppose it's reassuring on some level that it's not that nasty thing even though it could still be nasty iyswim...

PolterGoose Sat 29-Dec-12 11:48:15

Message withdrawn at poster's request.

PigletJohn Sun 30-Dec-12 15:05:36

If it is tar, it will dissolve into brown in white spirit. If it is mould bleach will kill it and it will dry to powder.

I gather it is on a dormer cheek so probably caused by rain penetration. Get recommendations for a local roofer to look at it. If he talks about repairing with lead that would be a proper job. If he talks about sticky flashband ask him to leave.

It couldn't be mould caused by condenation as a result of draping wet washing around the house, could it?

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