Roof washing in Aqualane Shores.

Canal air off Naples Bay does not dry out, and a roof sitting in it holds moisture the way a roof a few streets inland does not. On the tile and standing-seam metal common through Aqualane Shores, that means algae establishing in the valleys and on the north slopes and never really being knocked back, so the roof drifts from clean to streaked over a couple of seasons without any single event you could point to.

Our roof washing clears it at low pressure with a solution that kills the growth at the root, rather than the pressure washing that would drive water under tile and panel seams on a home whose interior finishes are worth protecting. After the rinse the roof keeps clearing over the following weeks as the dead growth weathers off.

On a canal lot the runoff has somewhere to go, and it is not going into the water — the beds and the dock-side plantings are pre-wet and rinsed, and the wash is controlled rather than allowed to sheet toward the canal. For the pool cage and the walls below, lanai cleaning and soft washing are the matching jobs. More on the area in Aqualane Shores.