The system of interlocking "Akoustolith" tiles forming a continuous curved vault surface was installed by the Raphael Guastavino Co. of New York City.

There are thousands of individual tiles in the vaults. The tiles are decorated with painted panels of designs derived from Native American signs and symbols.

The center of the larger middle area has an octagon containing feathers outlined in gold, representing a Native American headdress.

See ceiling by Gustavino Co. in
St. Francis de Sales Church.