They literally pay for the church over a short period of time. The Pantheon A dome delivers a church feel. Domes have been part of church heritage for centuries. St. Peter s Basilica and more. Monolithic Domes are column free which provides extremely efficient circular or semicircular seating and focuses attention on the lectern.
Many large churches are square buildings with round seating.
It is much more efficient to build a round building. Architectural Freedom Clear spans allow architects to design without worrying about roof supports, columns, or other structural limitations. Several architects have designed Monolithic Dome churches. But any savings that occur by using a metal building are usually quickly lost to higher energy and insurance costs. A major problem in the construction of any building is financing.