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2104.1.2.1 Bed and Head Joints
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Unless otherwise required or indicated on the construction documents, head and bed joints shall be 3/8 inch (9.5 mm) thick, except that the thickness of the bed joint of the starting course placed over foundations shall not be less than 1/4 inch (6.4 mm) and not more than 3/4 inch (19.1 mm).
Open-end units with beveled ends shall be fully grouted. Head joints of open-end units with beveled ends need not be mortared. The beveled ends shall form a grout key that permits grouts within 5/8 inch (15.9 mm) of the face of the unit. The units shall be tightly butted to prevent leakage of the grout.
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2104.1.2.1 Masonry, Bed and Head Joints
Unless otherwise required or indicated on the construction documents, head and bed joints shall be 3 / 8 inch (9.5 mm) thick, except ...
NYC Building Code 2008 > 21 Masonry > 2104 Construction > 2104.1 Masonry Construction > 2104.1.2 Placing Mortar and Units > 2104.1.2.1 Bed and Head Joints
Section 2104 Masonry, Construction
Unless otherwise required or indicated on the construction documents, head and bed joints shall be 3 / 8 inch (9.5 mm ...
2109.6.5 Masonry, Masonry Bonding Pattern
Each wythe of masonry shall be laid in running bond, head joints in successive courses shall be offset by not less than one-fourth the unit length ...
NYC Building Code 2008 > 21 Masonry > 2109 Empirical Design of Masonry > 2109.6 Bond > 2109.6.5 Masonry Bonding Pattern
2109.6.5.2 Masonry, Masonry Laid in Stack Bond
Where unit masonry is laid with less head joint offset than in Section 2109.6.5.1, the minimum area of horizontal reinforcement placed in mortar bed ...
NYC Building Code 2008 > 21 Masonry > 2109 Empirical Design of Masonry > 2109.6 Bond > 2109.6.5 Masonry Bonding Pattern > 2109.6.5.2 Masonry Laid in Stack Bond
2104.1.2.2 Masonry, Hollow Units
Hollow units shall be placed such that face shells of bed joints are fully mortared. Webs shall be fully mortared in all courses of piers, columns ...
NYC Building Code 2008 > 21 Masonry > 2104 Construction > 2104.1 Masonry Construction > 2104.1.2 Placing Mortar and Units > 2104.1.2.2 Hollow Units