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// CODE SNIPPET

§27-867 Clearances From Masonry and Concrete Chimneys

NYC 1968 Code (Vol I) > 15 Chimneys and Gas Vents > 2 Chimneys > §27-867 Clearances From Masonry and Concrete Chimneys
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(a) All wood beams, joists, and studs shall be framed away from chimneys. Headers, beams, joists, and studs shall be at least two inches from the outside face of a chimney or from masonry enclosing a flue. Trimmers shall be not less than five inches from the inside face of the concrete or masonry chimney wall. Finished flooring shall have at least one-half inch clearance from chimney walls.

(b) A clearance of at least four inches shall be provided between the exterior surfaces of masonry or concrete chimneys for commercial and industrial type incinerators and combustible material.

(c) A clearance of at least two inches shall be provided between the exterior surfaces of interior masonry or concrete chimneys for all wood burning appliances.

(d) No combustible lathing, furring, or plaster grounds shall be placed against a chimney at any point more than one and one-half inches from the corner of the chimney; but this shall not prevent plastering directly on masonry or on metal lath and metal furring nor shall it prevent placing chimneys for low temperature equipment entirely on the exterior of a building against the sheathing.

(e) All spaces between chimneys and wood joists, beams, or headers shall be firestopped in accordance with the provisions of subchapter five of this chapter.

(f) No change in the size or shape of a chimney shall be made within six inches of the roof framing through which it passes.

Related Code Sections


§27-867 Chimneys and Gas Vents, Clearances From Masonry and Concrete Chimneys
the outside face of a chimney or from masonry enclosing a flue. Trimmers shall be not less than five inches from the inside face of the concrete or masonry ...
NYC 1968 Code (Vol I) > 15 Chimneys and Gas Vents > 2 Chimneys > §27-867 Clearances From Masonry and Concrete Chimneys
2113.19.1 Masonry, Additional Requirements for Clearance
Trimmers shall be not less than 5 inches (127 mm) from the inside face of the concrete or masonry chimney wall. Finished flooring shall have ...
NYC Building Code 2008 > 21 Masonry > 2113 Masonry Chimneys > 2113.19 Chimney Clearances > 2113.19.1 Additional Requirements for Clearance
2113.19.1 Masonry, Additional Requirements for Clearance
Trimmers shall be not less than 5 inches (127 mm) from the inside face of the concrete or masonry chimney wall. Finished flooring shall have at least ...
NYC Building Code 2014 > 21 Masonry > 2113 Masonry Chimneys > 2113.19 Chimney Clearances > 2113.19.1 Additional Requirements for Clearance
2113.11.3 Masonry, Concrete and Masonry Chimneys for High-Heat Appliances
Concrete and masonry chimneys for high-heat appliances shall have approved clearance from buildings and structures to prevent overheating combustible ...
NYC Building Code 2014 > 21 Masonry > 2113 Masonry Chimneys > 2113.11 Flue Lining (Material) > 2113.11.3 Concrete and Masonry Chimneys for High-Heat Appliances
2113.11 Masonry, Flue Lining (Material)
minimum clearance of 4 inches (102 mm) shall be provided between the exterior surfaces of a concrete or masonry chimney for medium-heat appliances ...
NYC Building Code 2008 > 21 Masonry > 2113 Masonry Chimneys > 2113.11 Flue Lining (Material)
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