SECTION 2104 CONSTRUCTION

2104.2 Corbeled masonry. Except for corbels designed per Section 2107 or 2108, the following shall apply:

1. Corbels shall be constructed of solid masonry units.

2. The maximum corbeled projection beyond the face of the wall shall not exceed:

2.1. One-half of the wall thickness for multi wythe walls bonded by mortar or grout and wall ties or masonry headers or

2.2. One-half the wythe thickness for single wythe walls, masonry bonded hollow walls, multi wythe walls with open collar joints and veneer walls.

3. The maximum projection of one unit shall not exceed:

3.1. One-half the nominal unit height of the unit or

3.2. One-third the nominal thickness of the unit or wythe.

4. The back surface of the corbelled section shall remain within 1 inch (25 mm) of plane.

2104.2.1 Molded cornices. Unless structural support and anchorage are provided to resist the overturning moment, the center of gravity of projecting masonry or molded cornices shall lie within the middle one-third of the supporting wall. Terra cotta and metal cornices shall be provided with a structural frame of approved noncombustible material anchored in an approved manner.

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