Wall wont dry where mold was...?

prezzacc

Hi ALl,

An exterior wall i have had some green algae/mold on. I dug a little soil out and leveled it off. Got a stiff brush and soapy water , majority of if it has gone.

However the areas where the majority of the green was...is still wet....i washed the whole wall yet these bricks arent drying and a white mark is being left. Is there a problem with damp and if so who do i need to call or what i can do please?

Thanks!

tony6403

If it's a north facing wall ( which may be why you have algae on it ) it may not dry out quickly. See how it goes with time.

phil24_7

If there is moisture in the wall it will take a while to dry out. The water may also be penetrating from the outside, in which case it wont dry out until we have a dry spell!

prezzacc

Hi,

Thanks for the replies. Yes it is indeed a North facing wall! The bricks above the damp ones dried and I just found it strange. But it does look like they are slowly drying.

Still leaving a white stain. I'm wondering if another scrub with some bleach might do the trick.

Might not be such a good plan filling this area with white stones afterall!

phil24_7

Just let it dry out, more bleach/water will just prolong it.

societys_child

Still leaving a white stain.

Most likely salt forming on the surface as the damp dries out.

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