30 Fresco on Capital Dome
Thomas U. Walter's 1859 cross-section drawing of the new Dome (constructed 1855-1863) shows a recessed belt atop the Rotunda walls with relief sculpture. Eventually it was painted in true fresco, a difficult and exacting technique in which the pigments are applied directly onto wet plaster. As the plaster cures the colors become part of the wall. Consequently, each section of plaster must be painted the day it is laid.
30 Fresco on Capital Dome
Thomas U. Walter's 1859 cross-section drawing of the new Dome (constructed 1855-1863) shows a recessed belt atop the Rotunda walls with relief sculpture. Eventually it was painted in true fresco, a difficult and exacting technique in which the pigments are applied directly onto wet plaster. As the plaster cures the colors become part of the wall. Consequently, each section of plaster must be painted the day it is laid.