black spots on internal walls


Postby kentman12 » Tue Jan 03, 2012 2:25 am

i have render on the outside of the house iam getting
black mould spots on the internal walls upstairs.

is this a case of taking the render of and putting new render on.
looking at the render it all looks ok
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Postby welsh brickie » Tue Jan 03, 2012 9:57 am

use neat bleach to remove the mould.Its down to condensation on the wall rather than penitrating damp.
If it was water pentitration you would have a noticable wet patch on the wall.
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Postby kentman12 » Tue Jan 03, 2012 2:24 pm

thanks for reply.
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