Roof soft washing in Brunswick, St. Simons Island and Sea Island

No. Soft washing uses low pressure — lower than a garden hose — so no granules are knocked loose and the manufacturer warranty stays intact. High pressure is what damages shingles, and we never use it on a roof. The roof-specific cleaner does the work, not force.

Most of the black lifts during the rinse. The rest dies and washes away over the next two to four weeks as rain carries the dead algae off the roof. By the end of a month the roof is back to its original color, and it stays that way for 18 to 24 months.

As little as possible. We work from a ladder at the eaves and from the ground wherever we can reach. When we do step onto a roof, we walk the flat spots and avoid the valleys. Most roofs never get walked on at all.

Every three to five years on the Georgia coast. Heavily shaded roofs over the marsh may need it sooner. A treated roof stays clean far longer than a pressure-rinsed one because the algae is killed at the root, not just blasted off.