chicken pox paint

[bafflesme]

Hi, please help me.

In my kitchen which I painted about 4 years ago, there has been progressive amounts of spots appearing in isolated areas. The spots flare up at about 5mm spacings and are a 1.5mm in diameter. I can best describe them as being similar to Braille.

they cause the plaster to become loose if I try to scratch them off.

there is a hairline crack in the rendered external wall but the odd thing is that there are no water marks/yellowing on the internal wall where the spots are.

could it be because it is a chimney stack?

I painted the wall with ultra durable/wipe-able matt emulsion... could a lack of porosity be a cos?

any thoughts would be glad received... thanks

 

[Nige F]

:::: ....,,,,,^"¬'''......+-_

 

[opps]

:::: ....,,,,,^"¬'''......+-_

Nice one...

 

[opps]

It does sound like moisture trying to escape.

Did you prime the walls with dilute emulsion first?

Is the chimney stack vented? If not can you fit a vent below the units, if difficult then just drill a series of holes to allow airflow

Often people brick up fireplaces but dont allow for venting.