Nagle admits that glass block “has often been overused or not used well,” but he also believes it effectively allows light into a space while maintaining privacy. He specified it for this house as a geometric backdrop to a metal stair. Pittsburgh Corning manufactures the blocks in an assortment of patterns, shapes, and sizes. The company recently introduced colored blocks in blue, pink, and bronze. Pittsburgh Corning, 724.327.6100;

James L. Nagle, FAIA
nagle hartray danker kagan mckay penney