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Damp from wet brickwork

(7 Posts)
AllBoxedUp Fri 28-Feb-14 15:11:24

Hello. We developed a damp patch in our hallway which I assumed was due to a leak in our flat roof. A roofer cane around this morning and said it's actually an overflow pipe from the bathroom which is too short and constantly dripping which has soaked the brickwork. We are going to get it sorted next week but I was wondering what to do about the damaged walls. There is a white crusty mould on the wall. Should we wait for it to dry out then sand it or does it need something more heavy duty? Thanks for reading.

PigletJohn Fri 28-Feb-14 15:35:00

look up "efflorescence"

is this white stuff inside or outside the house?

don't try to wash it off.

AllBoxedUp Fri 28-Feb-14 16:55:57

Yes! It actually looks pretty bad in the kitchen as well. Do you need a special product? Is it very bad?

PigletJohn Fri 28-Feb-14 17:13:06

no

is this white stuff inside or outside the house?

AllBoxedUp Fri 28-Feb-14 17:14:36

Inside the house on the plaster in the corner of the kitchen and some in the corner of the hallway.

PigletJohn Fri 28-Feb-14 17:17:07

wait until it is fully dry, then brush it off. It is crystals of dissolved mineral salts.

AllBoxedUp Fri 28-Feb-14 17:17:55

Thanks - much appreciated.

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