With a Pressure-Washer Extension Wand, which is designed to be telescoped out up to 24 feet (some models, even more), one can power-wash upper-level barn exteriors/interiors, second-story building siding/windows, tall machinery, etc., while staying on the ground. The fiberglass (vs. aluminum) wand is reportedly lightweight and compatible with all pressure washers up to 4,000 psi and 7 gallons per minute. Although less than 10 pounds, extending that weight out can make its feel quite heavy, which is why an extension wand support belt is recommended when using one.