Damp Stain On Ceiling!

K1RST1E_2

Hi All,

My husband and I have been in our newbuild home for almost 5 years and done absolutely no decorating at all mainly due to not having the time. I’ve just started maternity leave so I’m going to occupy my time with these sort of things.

First stop is the downstairs toilet. Right above it is our main bathroom which must have a leak as whenever we run a bath, the downstairs toilet is covered in water. Before I paint it, I’ll obviously get the leak sorted but I’ve got the attached damp mark on the ceiling. Can I just paint over this to make it disappear?



Thanks.

googler

In order

Fix the plumbing upstairs

Dry the ceiling out (with heaters below it) and/or replaster it as appropriate

Redecorate downstairs

evokit

if you paint over it, it will come through again after it dries.

Theres this paint called 'Anti damp paint' by Ronseal bout a tenner.
Its an oil based product that can be painted over with a normal paint.

Do one coat, wait a day do another - tin says one coat but from experence 2 was needed - as i had the same issue when bathroom was re-fitted.
then paint away

phill99

If h plaster has blown it will need replastering. Otherwise you need to block the stain. You can use an expensive anti damp paint, but professionals just use an oil (solvent) based white undercoat. This is a much cheaper option than specialist paints and does th same job. Let it dry and then apply 2 coats of emulsion.

K1RST1E_2

Fab! Thanks both.

BlueC

evokit wrote: »

if you paint over it, it will come through again after it dries.

Yup. If you just paint over it with emulsion then the discolouring will show right back through again. You need a special damp seal paint, there is also one by Polycell:

http://www.polycell.co.uk/products/polycell_one_coat_damp_seal.jsp

Never used them but I have tried just emulsion and it really doesn't work. Will be interested to hear whether these special paints are any good because we have a small patch to cover too.

K1RST1E_2

Thanks for the advice! I was just going to paint straight over it :S

Ms_Chocaholic

I had a similar problem in my kitchen (bathroom above), not to that extent though, just a couple of spots. My neighbour who is a painter/decorator said to paint over marks with gloss paint and, when that's dry, paint over with emulsion, it worked a treat.

evokit

BlueC

I have used the ronseal one, it works but not doing one coat as the tin stated, tried it then done the 2

K1RST1E_2

This has probably been over the course of a year. We really must sort these issues out as and when they arise rather than leaving them!

BlueC

evokit wrote: »

BlueC

I have used the ronseal one, it works but not doing one coat as the tin stated, tried it then done the 2

Good to know, thanks. As "Ms Chocaholic" points out though.. I wonder if these "special" paints are a bit of a con... would a standard oil-based gloss do the same job?