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2113.1.2 Chimney linings.
The lining in chimneys shall not be considered as taking either compression or tension stresses.
2113.1.3 Chimney expansion and contraction.
Expansion and contraction in chimney walls due to temperature variations shall be accommodated solely by the use of steel reinforcing rings.
2113.1.4 Reinforcing rings.
Reinforcing rings shall be provided at all changes in wall thickness, at the top of the chimney, and above and below all flue openings.
2113.1.5 Existing chimneys and vents.
Existing chimneys and vents shall comply with the requirements of Section 28-104.13 of the Administrative Code and Sections 107.18 and 2113.1.5.1 through 2113.1.5.8 of this code.
2113.1.5.1 Responsibility of owner of taller building.
Whenever a building is erected, enlarged, or increased in height so that any portion of such building, except chimneys or vents, extends higher than the top of any existing chimneys or vents within 100 feet (30 480 mm), the owner of such new or altered building shall have the responsibility of altering such chimneys or vents to make them conform with the requirements of this chapter. A chimney or vent that is no longer connected with a fireplace or combustion or other equipment for which a chimney or vent was required, shall be exempt from this requirement. Such alterations shall be accomplished by one of the following means or a combination thereof:
1. Carry up the existing chimneys or vents to the height required in this chapter.
2. Offset such chimneys or vents to a distance beyond that required in this chapter from the new or altered building provided that the new location of the outlet of the offset chimney or vent shall otherwise comply with the requirements of this chapter.
Such requirements shall not dispense with or modify any additional requirements that may be applicable pursuant to rules of the New York City Department of Environmental Protection.
2113.1.5.1.1 Chimney and vent plan.
Applications for a new or altered building shall include a chimney and vent plan submitted pursuant to Section 107.18.
2113.1.5.2 Protection of draft.
After the alteration of a chimney or vent as required by this section, it shall be the responsibility of the owner of the new or altered building to provide any mechanical equipment or devices necessary to maintain the proper draft in the equipment.
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