Wall Efflorescence

Question

A little portion of my wall had Efflorescence. I found the water was coming through the roof tiles which I got fixed. So I would like to know how I can fix the affected area now. Just cleaning and filling the damage area and repainting will do the job?

Steven · Answer

A stiff brush and white vinegar can help this. If it’s painted already as rub the area and make sure it’s clean and dry before reapplying a new coat of paint.

Gareth · Answer

You will need a specialist Efflorescence remover and be ready for a very strong odur

Nicholas · Answer

Yes, clean the efflorescence with a stiff brush and mild detergent, ensure the wall is fully dry, fill any damaged areas with filler, sand smooth, and repaint with a suitable primer and paint. Ensure no moisture issues persist.

Shay · Answer

Hi I would wait for the area to dry up after the roof repair, then as long as it hasn’t caused too much damage, repainting the area after a month or 2 to be safe should be completely fine

Michael · Answer

Pressurized water: Applying pressurized water can dissolve efflorescence quickly.

Diluted vinegar: Diluted white vinegar can be used on efflorescence.

Brushing: A strong brush can be used to remove efflorescence

Jonathan · Answer

HI I would recommend sealing the area with undercoat or a primer sealer before applying your top coat.

Daniel · Answer

I think is best to change the roof tiles where it’s leaks and cut the affected parts of the roof and replace then paint

Anthony · Answer

Once gypsum type plaster has water ingress for a period, unfortunately the only correct way is to strip back and start again.

Paul · Answer

Efflorescence is salt from the brick so brush off with water it will eventually disappear I have had this after I built houses it's all about the conditions when it was built  do it will eventually stop

Kash · Answer

Its hard to advise when we cannot see it but normally if there has been a leak, allow it to dry (by that i mean a few weeks) then apply zinnsser stain block and then paint over with a damp proof paint.

KASH
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Wall Efflorescence

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