What do you need to stop a chimney?

The space between the shaft and the building is or can be sealed with “fire code” [fire-rated] sheetrock or metal flashing if a fire stop is required between floors. Chimneys that pass through several floor levels of a home may be required to be fire stopped at each penetration. Typical fire stops are sheet metal or fire code sheetrock.

What is the International Building Code for chimneys?

Masonry chimneys shall be constructed in accordance with the International Building Code. 801.4 Positive flow. Venting systems shall be designed and constructed so as to develop a positive flow adequate to convey all combustion products to the outside atmosphere.

What are the fire safety requirements for chimneys?

In addition to the requirement for safety fire clearance from rooftops and other building components, separate metal chimneys that are too close to one another may cause damage resulting in poor chimney performance or an unsafe chimney.

How are chimneys and fireplaces regulated in California?

Cleanouts shall be accessible and located so that ash removal will not create a hazard to combustible materials. Masonry or concrete chimneys in all structures regulated by this code assigned to Seismic Design Category C, D 0, D 1 or D 2 shall be reinforced. Reinforcing shall conform to the requirements set forth in Table R1001.1 and Section R606.

What is the fire code for a chimney?

Chimneys, Flues and Flue Pipes c) after any chimney fire. combustible deposits. b) all abandoned or unused openings that are not effectively sealed in a manner that would prevent the passage of fire or smoke. A-2.6.1.4.

When does a chimney comply with IMC 801.18?

801.18 Existing chimneys and vents. Where an appliance is permanently disconnected from an existing chimney or vent, or where an appliance is connected to an existing chimney or vent during the process of a new installation, the chimney or vent shall comply with Sections 801.18.1 through 801.18.4. 801.18.1 Size.

When does a chimney need to be resized?

The chimney or vent shall be resized as necessary to control flue gas condensation in the interior of the chimney or vent and to provide the appliance or appliances served with the required draft. For the venting of oil-fired appliances to masonry chimneys, the resizing shall be in accordance with NFPA 31. 801.18.2 Flue passageways.

What is the International Mechanical Code for fireplaces?

Connection of appliances to chimney flues serving fireplaces shall be in accordance with Sections 801.10.1 through 801.10.3. 801.10.1 Closure and access. A noncombustible seal shall be provided below the point of connection to prevent entry of room air into the flue. Means shall be provided for access to the flue for inspection and cleaning.