clear span domes geodesic dome manufacturer tank roof CLEAR SPAN DOMES Tests on clear span domes suggest that this novel arch can be used as a skeletal system for large clear-span domes. The self-supporting, clear span domes provide optimum work space, storage and access. Primarily clear span domes and related space frames fabricated from aluminum used for covering tankage arenas, gymnasiums, theaters and auditoriums. Clear span domes, covers and structures are the first choice for thousands of industrial applications worldwide. The air- supported structure can be used for any application requiring an unobstructed or column-free clear span dome. The dome is a clear-span structure attached to, and supported by, the tank at mounting points, quantity of which is dependent on dome diameter and is specified by the geodesic dome manufacturer. The clear span dome and clean lines allows all observers to move about easily within the observatory. Manufactures clear-span aluminum dome and geodesic covers for environmental protection and architectural purposes This structure has a clear span dome of 40 feet with large windows for north light on work surfaces. The large clear span domes over the restaurant necessitated the use of steel trusses. Fire protection to the steel was provided throughout by encasing in concrete or other incombustible material.