damp issue

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well the walls wet...
its either rising damp or penetrating damp provided the plasters been dry once already (edit provided ypou havent got a leaky pipe behind the wall or someones taken a leak against it or its not just condensation but then youd have seen black mould)
a white tide mark is indicative of salts, hydroscopic salts are dissolved in the substrate which means the waters coming through the substrate not sitting on it...
theres a good few reasons the wall could be wet, can you explain why you seem to think its not rising damp?
wheres the outside ground level in relation to the inside floor level?
how old is the house?
have you got any crap piled up against the outside wall?
is it in fact an outside or inside wall?
give us the story behind it.. but please explain what you know about damp issues
 
hang on a minute... if im not mistaken those look like push fit water pipes??? are they leaking?
 
Hi Chis thanks for your reply.

Ill start with i know nothing about damp issues, hence asking for new opinion.

Could see dark mark on/behind dark grey paint so asked damp improvement company to come round they said it was rising damp.

Got scared at the cost so got an independent damp survey done of the whole house using scanners. They said its condensation and there is no such thing as rising damp.

There is no white tide mark or any sign of mould

it is a party wall in the middle of a two up to down with kitchen extension 1930's i think.

think i covered it.
 
that is the TV Arial etc. As you get to either edge by the doors where there is more ventilation and a little natural sun light its dry or dryer than it was after first removing paint
 
colin1717 said:
Got scared at the cost so got an independent damp survey done of the whole house using scanners. They said its condensation and there is no such thing as rising damp.
Click to expand...
if there was no such thing as rising damp there would be no need to install a damp proof course...
problem is its actually quite rare but it does happen, especially on older houses but the problem is usually penetrating such as leaky gutters, failed external pointing, or ground level higher than damp proof course....
1930's house very probably a 9" solid wall...
if theres a kitchen on the other side maybe theyve got a leaky washing machine? might be worth a check?
condensation is a possible without mildew, mildew does love a bit of distilled water but if it doesnt like the paint it wont grow there....
the other problem is the heat, if the walls at the same temp as the room water wont condense on it, it needs a colder surface... usually forms on external uninsulated walls, especially round the ceiling line...
all that said, if theres something pushed up against the wall and theres no airflow, a small amount of condensation that would normally dry off pretty quick can turn into a problem...
if you check with next door and they havent got a problem, its coming from your side and probably is condensation provided theres no nearby possible source of water leakage
Had a condensation problem in a flat while back and lined the wall with some insulating wallpaper and that sorted it without expensive vents, kept the surface warm enough
 
Chris W said:
if there was no such thing as rising damp there would be no need to install a damp proof course...
problem is its actually quite rare but it does happen, especially on older houses but the problem is usually penetrating such as leaky gutters, failed external pointing, or ground level higher than damp proof course....
1930's house very probably a 9" solid wall...
if theres a kitchen on the other side maybe theyve got a leaky washing machine? might be worth a check?
condensation is a possible without mildew, mildew does love a bit of distilled water but if it doesnt like the paint it wont grow there....
the other problem is the heat, if the walls at the same temp as the room water wont condense on it, it needs a colder surface... usually forms on external uninsulated walls, especially round the ceiling line...
all that said, if theres something pushed up against the wall and theres no airflow, a small amount of condensation that would normally dry off pretty quick can turn into a problem...
if you check with next door and they havent got a problem, its coming from your side and probably is condensation provided theres no nearby possible source of water leakage
Had a condensation problem in a flat while back and lined the wall with some insulating wallpaper and that sorted it without expensive vents, kept the surface warm enough
Click to expand...


Thank you, i will look into what you have said. it is the wall furthest from the heating so definitely the coldest wall.
 
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