How to remove mould on rendered exterior walls?

Question

I have black mould where my exterior walls meet the footpath tiles. The wall have a white Finecoat paint/render finish - what can I use to treat the mould?

JacobZ · Answer

Hi @Barry7,

I'd suggest using this 30 Seconds Outdoor Cleaner Concentrate. Mix it in a sprayer 1 part cleaner to 1 part water as advised on the packaging, then apply it to the mould and allow it to sit for a couple of minutes before scrubbing with a scrubbing brush, ensuring you wear a mask and gloves while doing so.

Once it has been agitated, flush the area with clean water to remove the mould.

This process can be repeated as many times as necessary to remove all of the mould and any associated staining.

Let me know if you have any further questions.

Jacob