damp plaster (penetrating damp problem)

[frangopop]

Hi there,

We got a room skimmed 18m ago and one bit of plaster didn't dry out, but we realised that there were bricks breaching the cavity (underneath the chimney) and have since had the house sprayed with anti-damp stuff.

Problem is now the wall feels dry but still is a different colour (possibly stained). How could I tell when the wall has dried out? the area will need rendered again anyway as it is under the chimney and there are hygroscopic salts (quite bad and fluffy in some areas)

I just would like to know when will it be safe to replaster? And what is sbr slurry??

 

[joe-90]

A brick or two breaching the cavity won't cause damp problems.
Victorian houses don't even have a cavity - but they aren't damp.

Whatever you sprayed your house with to remedy the damp was a complete and total waste of money. What did you pay for it?

If it's to do with the chimney breast it's most likely condensation.

Take a photo - then we won't have to guess.

 

[frangopop]

Untitled

• frangopop
• 31 May 2012
• 1

Waste of money, just what I want to hear...! We had a builder in who told us that it was the bricks and we got an independant to spray it so thought it was legit. There is a row of 15-20 bricks breaching the cavity at the level of the cornice and another row of bricks above this. The damp patch has only been shrinking since we got the wall done so we thought it had worked. Any other ideas of what it is are greatly appreciated tho