The galleries make heavy use of natural light through clerestories, oculi, and skylights. Along the sides of aisles, clerestories and chancel are more lancet windows. Barns, described as "palaces" or "cathedrals" can have cupolas, clerestories, and other ornamentation. Wright's luxury materials, cantilevers and clerestories are also inherently costly. The Romans applied clerestories to basilicas of justice and to the basilica-like bath-houses and palaces. Many of these churches have wooden roofs with clerestories below them. The clerestories and arcades were cleaned and underpinned. Both the aisles and the clerestories have five pairs of lancet windows. There are three-light windows along the aisles and the clerestories. When facing toward the sun, clerestories and other windows may admit unacceptable glare. It is divided into four levels with arcades, galleries, triforia and clerestories. The church is constructed in stone with some brick in the clerestories. It lights the mezzanine and kitchen much as the clerestories would. The ceiling is also punctuated by clerestories. The adjoining plating shop has distinctive large windows with clerestories above.