I have some staining on my chimney. When i paint over the stain, the
stain reappears as if by magic. What is causing this stain and how do
i go about getting rid of it.

Thanks in advance for any suggestions.

in 458043 20051017 082716 wrote:
I have some staining on my chimney. When i paint over the stain, the
stain reappears as if by magic. What is causing this stain and how do
i go about getting rid of it.

Thanks in advance for any suggestions.

The flashing round the chimney needs replacing (probably got very thin
and perforated). Then you can get stuff from Jewsons to spray on the
stain before repainting.
Been there (twice) just recently.

It's tar leaching through the chimney - get some stains top to paint on
and then whatever paint you are using over the top of that

On 17 Oct 2005 00:27:16 -0700, wrote:

I have some staining on my chimney. When i paint over the stain,
the stain reappears as if by magic. What is causing this stain and
how do i go about getting rid of it.

Either damp or tar from an open or other solid fuel fire. The damp
really needs to be sorted out by finding the source. Not a lot you can
do about tar. To stop it showing through fresh paint you needs to seal
it either with a proprietary stain stop (not "stains top" B-) ) or
an oil based paint that you have lying about.

--
Cheers
Dave. pam is missing e-mail

wrote in message
oups.com...
I have some staining on my chimney. When i paint over the stain, the
stain reappears as if by magic. What is causing this stain and how do
i go about getting rid of it.

Once you have the cause of the staining sorted overpaint with something
like:

http://www.screwfix.com/app/sfd/cat/...58153&ts=40028

wrote in message
oups.com...
I have some staining on my chimney. When i paint over the stain, the
stain reappears as if by magic. What is causing this stain and how do
i go about getting rid of it.

Thanks in advance for any suggestions.

What feeds into the chimney? If its a boiler then it might be condensing
water not a
leak.

Is it a new installation? If so it might not have been provided with
somewhere for
the water to drain. If its an old installation and the problem has just
happened
then more likely a leak.

Peter Scott

lavenders19 wrote:
I have some staining on my chimney. When i paint over the stain, the
stain reappears as if by magic. What is causing this stain and how do
i go about getting rid of it.

Do you mean the chimney breast indoors? It's damp and creosote/tars
penetrating the plaster. You can get paint that's supposed to stop
it, but it will come straight through normal gloss and "stain block".
Try and stop the damp if the fireplace isn't used, an airbrick to the
outside and a vented cap is OK. Your best chance of a good cure to
the problem may be to hack off the plaster, render with 1:1:6 with
waterproofer, and skim.

wrote:
I have some staining on my chimney. When i paint over the stain, the
stain reappears as if by magic. What is causing this stain and how do
i go about getting rid of it.

Thanks in advance for any suggestions.


The magic brown stain doesn't mean you have a current damp problem. It's
usually the residue from old leaks that have been fixed long ago. Paint
it with a standard oil based undercoat (or any other white spirit
soluble stuff you have in the shed).