Mold or rot?

[phil_cardiff]

What's this I've found on a concrete floor under some laminate flooring? Dry rot? How do I treat it?

Thanks, Phil

[shirt]

concrete doesn't rot. looks like mould - prob due to spillage getting moisture under the laminate. clean it with mould/mildew cleaner then build up your new floor as normal

[mas99]

Dry rot, like most rots, will die if you solve your damp problem. I've no idea if that is but it looks like some sort of fungal growth.

this is an excellent read : http://books.google.co.uk/books?id=0hkU03rta7UC&am...

Ridout is one of the world experts on real world treatment of damp/rot. Done lots of work on palaces etc.

[phil_cardiff]

shirt said:

concrete doesn't rot. looks like mould - prob due to spillage getting moisture under the laminate. clean it with mould/mildew cleaner then build up your new floor as normal

Good point about concrete not rotting. Bit of a brain fart there!

It's where a radiator was fitted, I guess some moisture leaked under the laminate when the rad was taken off and the mold set in.

[andy43]

That's a neolithic fern fossil you've got there
All work must be halted until a full 4-week archeological dig into the concrete is undertaken, at your expense, to see if the Natural History Museum would be interested in turning your foundations into their latest exhibit.
That bloke off Channel 4 who used to be Baldrick might come along and lend a hand for free, if you let them film it.
HTH.

[phil_cardiff]

andy43 said:

That's a neolithic fern fossil you've got there
All work must be halted until a full 4-week archeological dig into the concrete is undertaken, at your expense, to see if the Natural History Museum would be interested in turning your foundations into their latest exhibit.
That bloke off Channel 4 who used to be Baldrick might come along and lend a hand for free, if you let them film it.
HTH.

You didn't see nuffink ok?

[eldar]

Not neolithic, at all, paleolithic in fact.

The remains of the stone age concrete layers sarnie that got caught up in the mix. (probably sliced mammoth).

A light scrubbing with a bit of water with a dash of bleach in it should solve it.