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Beat black mould the DIY way

Beat black mould the DIY way

If you have black mould outside your home, you know how unsightly it can look. Black mould grows on surfaces such as your driveway, path, porch and roof, and it turns any area it invades into an ugly, sooty-looking mess. This hardy growth stubbornly adheres to surfaces, and it can be a real struggle to clean. It’s easy with Wet & Forget, all you have to do is spray on and leave it. The weather will slowly decompose the dead growth and over time the surface will become clean! No elbow grease necessary!

Unlike green algae, which prefers shady areas, black mould has a dark-coloured shell that protects it from even the brightest sunlight. This protection means that black mould is perfectly at home on your path, driveway or roof, where it can cause a general black or grey discoloration.

The same shell that protects black algae from the sun also makes it tough to get rid of. Using bleach usually requires scrubbing, which isn't exactly an easy job. A pressure washer is hard to use, and getting rid of black mould with a pressure washer can take some time. Worse yet, both of these methods risk damaging the surface. Bleach can be corrosive, and kill your lawn with caustic run off, and a pressure washer can cause wear and tear on the surface. Neither bleach nor pressure washing does anything to prevent re-growth, which means that black mould can start forming almost from the moment you finish cleaning and trap you in a cycle of cleaning and re-cleaning.

Wet & Forget is the way to break free from the cycle. Just spray and leave, and Wet & Forget does the work for you. Wet & Forget works with the weather such as the wind and rain to kill and wash away black mould over time, leaving your surface clean. Wet & Forgets gentle, non-caustic formula is safe to use on any exterior surface, and if you get any run off it won’t kill your lawn. Best of all, Wet & Forget keeps working even after the black mould has disappeared, keeping your surface mould-free for a year or more in most cases. Problem solved!

How to Remove Mould with Wet & Forget

Getting rid of tough black mould is easy when you choose Wet & Forget.


 1. Mix 1:5 (1 part Wet & Forget with 5 parts water) in a garden sprayer.

2. Saturate the affected area with the diluted Wet & Forget. Allow at least 12 hours drying time before the threat of rain.

3. Leave, and let Wet & Forget do the work for you!

4. Re-treat once a year, or at the first sign of re-growth.

To shop or read about Wet & Forget, click here.


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