saddle joint(redirected from articulatio sellaris)
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1. A stepped joint in a projecting masonry course or in a coping; used to prevent the penetration of water.
2. A vertical joint in sheet-metal roofing; formed by bending up the end of one sheet and folding it downward over the turned-up edge of the adjacent sheet.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.