Soft Washing in Shelby Township

The growth on a Shelby Township wall is alive. Algae, mildew and, in the deepest shade, moss and lichen root into the texture of vinyl and the pores of brick, and they only grow while the surface is wet. Under mature oaks and maples, a north or east wall can hold dew until midday, and river-valley lots near River Bends Park and the Burgess-Shadbush Nature Center hold morning humidity longest of all. Add a spruce and pine privacy row planted decades ago and now at full height, and the wall behind it never sees direct sun. That is why one house greens up in year three while its neighbor across the street, facing south with no trees, stays clean for eight.

Soft washing treats the cause. A blend of sodium hypochlorite and surfactant goes on at low pressure, dwells for ten to fifteen minutes while the biology dies, and rinses off at garden-hose strength. The surfactant lets the solution cling to a vertical wall long enough to work, and the rinse carries off the dead growth without forcing water behind the laps. Nothing in the process touches the siding harder than a rain shower, which matters on the brick-and-vinyl two-stories toward Stony Creek and on the aluminum of the 1970s split-levels alike.

Because the roots are dead, the wall stays clean two to three years in shade and longer in sun. Regrowth starts from spores landing on a clean surface rather than from a colony that survived a rinse, which is the difference between a wash that lasts and one that looks fine until August. Pricing starts at $349 for a house, and the drive from our Clinton Township shop is about 15 minutes. The comparison in our soft washing versus power washing guide covers the chemistry in detail.

The Rinse That Comes Back Green

Water without chemistry. A pressure washer on a shaded wall knocks the visible layer off and leaves the root structure in the siding texture, so the wall regrows from full strength and is green again within a season. The pressure also finds every gap in the laps and pushes water onto the sheathing, where the shade keeps it from drying. The reverse mistake is solution mixed too strong for the surface, which bleaches paint on trim and burns the evergreens along the foundation. Both are avoidable with the right ratio and enough dwell time.

Timing It Right

Any frost-free month works, since the chemistry does not depend on heat. Spring is the busiest stretch on the shaded streets near the Clinton River, where the winter's head start is visible by April. Fall is the second wave, especially in the plats off Hayes Rd and Schoenherr Rd where association notices tend to arrive in September. Mid-summer dries fastest and books easiest.