San Francisco, Calif. : Architect and Engineer Co · leaf 571
he roof tile perfectly insulate the building against heatand cold. The roof is laid precisely like the floors. Cinder concrete is ap-plied to the top side of the tile, and graded to drain the roof to the four cor-ners of the building. Conductors extend from these corners down throughthe hollow… … BCDR^ HALL
Architecture · Building
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