rising damp


Postby david c » Fri Feb 08, 2008 8:53 pm

i have a problem with damp in my internal hall wall.

it has had a damp course put in over 14 years ago ( injection ).
it was injected one brick above the floorboards.

i have taken the old plaster of up to about one meter high.

i intend to inject using dryzone, i would like to know if i should inject above or below the exsiting damp course?

when i took of the old plaster i found that the wall has been painted black ( i assume to be some sort of sealant ), it also has pathes of salts.

can i still put a neutraliser on the wall ( even with this black stuff on it )?

when i took of the old plaster i noticed the plaster was browning and not the render type of plaster, would this have affected the performance of the orginal damp course?

any help appreciated.
david c
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Joined: Sun Jan 27, 2008 11:29 am

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