The most commonly asked question of Horizon customers is whether mild cleaning chemicals can kill their plants. And the quick answer to that is yes. As the gentle wash industry grows in western Michigan and across the state, you'll realize that any professional company will use a similar process. The best way to protect yourself against detergents is, once again, to ensure that the plants are well watered before and especially after pressure washing.
Even a small amount of detergent left in the garden contributes to the death of the plant. Gentle washing works best on asphalt tile roofs, vinyl siding, 26% tinted wood, gutters, ceilings, cladding, stucco and EFIS, and roofing. My Guy performs gentle washing with precision and attention to detail to provide an effective treatment without harming the valuable life of the plant. Gentle washing uses professional-grade sodium hypochlorite (bleach) to kill Gloeocapsa magma, which is a type of algae that leaves ugly black stripes on ceilings and coatings, causing damage in the process.
If you're cleaning the roof and the gutters in the house or building are working properly, the gentle washing solution will end up in the gutters and out the downspouts. While water can do a lot to protect metal accessories, ornamentation and plants during a gentle wash, the safest thing to do is to neutralize any mild runoff that may remain on plants. Gentle washing is a process in which biodegradable detergents are used that are applied at low pressure to loosen dirt, grime and kill mold, moss, algae and other organic growths on household surfaces. Adding a surfactant, such as ProTool Sticky, to the gentle wash blend helps sodium hypochlorite adhere to ceilings, coatings and other surfaces longer.