Systems and methods for lifting and positioning a roof for installation on a storage tank

A system, comprising:

• a plurality of lifts configured to couple to a storage tank about a circumference of the storage tank, wherein each lift of the plurality of lifts comprises:
• a hoist;
• a coupling configured to extend between the hoist and a roof of the storage tank;
• an inlet conduit configured to be coupled to an inlet of the hoist;
• and
• an outlet conduit configured to be coupled to an outlet of the hoist;
• wherein a pressure difference between the inlet of the hoist and the outlet of the hoist spools the hoist;
• the plurality of lifts result in a plurality of hoist, a plurality of couplings, a plurality of inlet conduits and a plurality of outlet conduits;
• a reservoir configured to store compressed air;
• and
• a manifold configured to fluidly couple the reservoir to each inlet conduit of the plurality of inlet conduits and to fluidly couple each outlet conduit of the plurality of outlet conduits to an exhaust, wherein the manifold comprises a plurality of outlet valves, wherein each outlet valve of the plurality of outlet valves is coupled to one outlet conduit of the plurality of outlet conduits, wherein the plurality of outlet valves is configured to regulate flow between the outlets of the plurality of hoists and the exhaust and wherein the manifold is configured to exhaust air from the respective outlet of a first lift of the plurality of lifts, via the respective outlet valve, to create a pressure differential between the respective inlet conduit and the respective outlet conduit, to cause the first lift to spool.