Fireplace Chimney Roof Clearance

Notes to the metal chimney fire clearance table above.

Fireplace chimney roof clearance.

Clearance to combustible framing 1 not less than a 100 mm clearance shall be provided between the back and sides of a fireplace and combustible framing except that a 50 mm clearance is permitted where the fireplace is located in an exterior wall. Duratech by simpson duravent is an all fuel chimney system for use with wood stoves fireplaces furnaces boilers ranges water heaters or other appliances fueled by wood oil coal or gas and zero clearance fireplaces that are factory built. The chimney must extend at least 3 above the highest point where it passes through a roof. If you look up past the damper you will see a round metal chimney.

The intersection of the cricket and the chimney shall be flashed and counterflashed in the same manner as normal roof chimney intersections. A prefab fireplace generally has a firebox of cast refractory panels and usually some metal is visible in the room all around the firebox. The metal flue i inspected extends 3 feet above the roof line however it sits within 10 of a second floor dormer which towers above the flue by at least 8 feet. For example a 4 12 pitch would require 64 inches above the eave.

So the height of the chimney will depend on the pitch of the roof at the edge of the peak. Duratech chimney systems are designed for normal continuous operation at 1000 f flue gas temperatures duratech is subjected to rigorous and. If the chimney only had only one or two flues and was built in a wood frame house the chimney walls were built 8 thick as they passed through the roof. Those clearance spacings are normally found in at least two locations.

And at least 2 higher than any portion of a building within 10. The installation instructions for the specific flue vent connector or metal. Woodstovepro woodstovepro 11 26 2019 09 15. They intend to make sure that the chimney draws properly and that a fire hazard does not occur.

Does anyone know if the clearance standards are the same for a natural gas fireplace flue chase as they are for a wood burning fireplace. As listed where shown in the table above means that the acceptable fire clearance distances for those chimney types must match or comply with the manufacturer s instructions. Not sure if the same clearance requirements apply to this natural gas flue that being having. Fireplace chimney inspection books inspecting and diagnosing chimney problems fireplace problems chimney fireplace standards ceramic roofware hans van lemmen shire library 2008 isbn 13.

Specifications aren t there to merely cause you problems. And above the roof is more round metal chimney sometimes surrounded by a simulated brick housing.