Over the last twelve years we have successfully performed window cleaning equipment consulting on a hundred buildings (new and existing) throughout the United States, a testament to the expertise and experience possessed by this engineering company. The company’s principal engineer, Craig S. Caulkins, a 1973 Civil (structural) Engineering graduate from Vanderbilt University, is a Registered Professional Engineer in California, Florida, New York, Massachusetts and numerous other States.

The roof carriage is similar to a rolling davit carriage except the counterweighted carriage usually rolls on non-pneumatic rubber tires instead of rails. The carriage may be mechanically propelled or pushed manually to each drop position around the periphery of the roof. Once positioned, the carriage’s tie-down arm, similar in design to that of the roof car, is pinned and electrically interlocked to the roof tie-down lug. The assembly’s pair of davit shaped arms often do not tilt down or rotate because the entire carriage assembly can be rolled away from the parapet, out of view, eliminating the need for previously described davit features.