Why Algae and Mold Keep Coming Back on Arkansas Homes
If you pressure washed your house last year and the green or black growth is already back, you are not alone. This is one of the most common frustrations Arkansas homeowners face — and the reason it keeps returning has everything to do with how the cleaning was done, not with the climate.
Pressure Washing Removes Growth — Soft Washing Kills It
Standard pressure washing blasts organic growth off the surface with mechanical force. It removes what is visible but does not kill the organism. Algae and mold spores remain embedded in the surface pores and in the surrounding environment. Within weeks to months in Arkansas’s humid climate, the growth returns — often faster than before because pressure washing removes the surface protection that slows regrowth.
Soft washing uses a biodegradable sodium hypochlorite solution that penetrates the surface and kills algae, mold, mildew, and bacteria at the cellular level. The organism dies rather than simply being displaced. This is why professionally soft-washed surfaces in Arkansas stay clean for 1–3 years rather than a few months.
Environmental Factors in Arkansas
Arkansas’s combination of high annual humidity, warm temperatures, and significant rainfall creates ideal conditions for rapid organic growth. Shaded north-facing walls, areas under tree coverage, and surfaces that hold moisture longer are reinfected fastest.
If algae keeps returning in the same spots on your home, those spots need more than high pressure — they need the appropriate chemical treatment to break the growth cycle.
Long-Lasting Exterior Cleaning in Central Arkansas
American Services AR uses professional soft washing to eliminate algae and mold rather than just removing it temporarily. Call 501-289-5623 or visit americanservicesar.com for a free estimate.