How to clean your concrete patio in 3 easy steps
After preparing your deck, familiarize yourself with the wide range of cleaning methods available to you. Depending on the type and degree of dirt, you can opt for one of the many organic cleaners, or a harder and less environmentally friendly one. Start cautiously, using the least toxic and abrasive cleaning agent. Be sure to test any type of cleaner on a small, inconspicuous area first. If it passes the test, start working on the dirtiest areas.
You may need to switch to a stronger cleanser if mild cleansers are ineffective. Hydrogen peroxide, pure or mixed with flour to form a paste, is a good start. Bleach is a stronger cleaner that kills mold and mildew and controls weeds, algae and moss between or on deck tiles. But, My backyard life consider this to be problematic. Letting it sit could damage the concrete, so it’s best to spray it on. Bleach is also toxic to children and pets and will damage nearby grass and plants.
Caustic cleaners are effective but should only be used if other methods are not strong enough. Hydrochloric acid is able to dissolve the binder contained in concrete, while trisodium phosphate does not damage concrete, but it is not recommended due to its adverse effects on the environment. Always wear protective gear when handling dangerous and irritating chemicals. No matter the approach, Concrete network suggests adding a regular deck cleaning schedule to your comprehensive maintenance routine.