We live in a Grade 2 listed building and one room - which we think used to be a room for salting/curing meat is causing us problems. Because of this the paint is bubbling/peeling from the walls. Also we have a sandstone arch as a fireplace and parts of this is flaking and powdery. Again we think this is due to the salt. The room was totally re-plastered about 25 years ago. Any advice about how to cure / help with this problem would be much appreciated.
Thanks for both suggestions. We already use a clay based paint but it has not worked. This stone built house is at least 500 yrs old therefore no dampcourse exists! Would some kind of sealant/barrier work and if so what kind?
To answer some of the questions asked:-
The house is stone built with walls approx. 2 feet thick.
The floor is slate placed on soil.
There is no DCP in a house of this age - at least 500yrs old.
The room was re-plastered about 30 yrs ago with sand and cement.
It is heated by gas fire and central heating.
It is ventilated by air vents, two windows one at each end of room plus two doors.
There are signs of damp mould in corner but inner wall also shows signs of being corroded by salt.
We have used a clay based paint.
Thanks for both suggestions. We already use a clay based paint but it has not worked. This stone built house is at least 500 yrs old therefore no dampcourse exists! Would some kind of sealant/barrier work and if so what kind?
To answer some of the questions asked:-
The house is stone built with walls approx. 2 feet thick.
The floor is slate placed on soil.
There is no DCP in a house of this age - at least 500yrs old.
The room was re-plastered about 30 yrs ago with sand and cement.
It is heated by gas fire and central heating.
It is ventilated by air vents, two windows one at each end of room plus two doors.
There are signs of damp mould in corner but inner wall also shows signs of being corroded by salt.
We have used a clay based paint.