sealing a chimney crown

[vernerbongo2]

Hello

I have damp in a bedroom wall with an external chimney breast behind it. A friend suggested it could be coming in through the chimney crown. Took a look & it seems solid but looks damp.

I want to seal it with a coat of something but what?

Thanks

 

[Xenon]

 

[Nige F]

He said a coat OF something . Google liquid masonry waterproofer Thompson`s water seal aint a bad one .

 

[vernerbongo2]

Hehehe, very witty

Was looking in the garage & found a tin of Thompsons roof seal, does concrete the lot.
It's black but who'll see it up there

Probably similar to what you're talking a bout and it's uv resistant & breathable.

 

[joe-90]

Why have you put this on two forums?

 

[onecog]

Why have you put this on two forums?

it's in the name