Since the early 1920s, asbestos has been the heat insulation material of choice. The most widespread use of asbestos was for insulation aboard Navy ships, in commercial buildings and homes. Asbestos litigation and mesothelioma litigation has demonstrated that asbestos was used for pipe covering, roofing, wall insulation, siding, flooring and the insides of boilers. Automobile manufacturers used asbestos in brake pads and clutch plates, and NASA used in it the space shuttles. Asbestos lawsuits represented by Casey Gerry's San Diego asbestos lawyers have established that, asbestos was used for decades in the insulation of naval ships in San Diego, at the NASSCO shipyard as well as at the 32nd Street Naval Shipyard, exposing both military and civilian personnel to this highly dangerous fiber.