Building exteriors tend to get gross. Dirt clings to the walls. Windows get filmy. Spiderwebs amass. If you live in a particularly humid area, mold and mildew can start to make exterior walls look like a science experiment.
On taller buildings, scrubbing it all off generally means bringing a bucket truck, scaffolding or suspension gear and having a crew hang from the side of the building. It’s a lot of prep work, with a lot of potential for falls and injuries. Lucid, a new company out of North Carolina, has a different approach: drones.
Rather than pressure washing, their drone “soft washes” the building — be it a house, an office or the campus library — by spraying a cleaning solution that the company says is biodegradable and works on surfaces like brick and limestone. The operator rolls up to a site, unfolds the drone, powers it up, then plugs it into a tank sitting in the back of their work truck. A hose tether runs from the tank to the drone at all times, feeding the low-pressure sprayer while keeping the bulk of the weight down on the gro ..
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