Abstract: A method of inspecting canopy structures is provided to determine the structural integrity of the roof support system. The method includes steps designed to uncover hidden deficiencies in the roof support system through nondestructive testing and discovery. Timely use of the method of inspection not only minimizes the risk of canopy collapse but also produces information needed for making repair or replacement of the roof support system.

Abstract: A set of tools is provided for inspecting and obtaining critical data concerning the support structure of a canopy on support columns. The data obtained is entered into a computer programmed to generate a structure integrity report based on the data. The tools include a measurement wheel, an electronic level, a digital camera, a laser distance meter, an ultrasonic thickness gauge and optionally, a ladder and a drill. The computer can be local to the inspection or remote, and, if the latter, in communication with a personal digital assistant with wireless telephone capability into which the user can enter data.

Abstract: A method for replacing a defective column that supports a service station canopy involves the use of several cranes. A pair of cranes supports the canopy while the defective column is being removed and the new column is being installed. A second crane assists in lifting the defective column clear of its foundation and in controlling it as it is lowered from its supporting position. The portion of the roof of the canopy surrounding the upper end of the defective column is cut away and a portion of the base of the service station concrete floor surrounding the lower end is removed to allow the defective column to be disconnected from the canopy frame and foundation, respectively. The defective column can then be removed and replaced while the pair of cranes supports the canopy. Once the new column is in place and re-connected to the foundation and frame, the base can be filled with concrete and the roof repaired.

Abstract: A method of inspecting canopy structures is provided to determine the structural integrity of the roof support system. The method includes steps designed to uncover hidden deficiencies in the roof support system through nondestructive testing and discovery. Timely use of the method of inspection not only minimizes the risk of canopy collapse but also produces information needed for making repair or replacement of the roof support system.