How High Should A Chimney Be Above The Roof Uk

As a guide a chimney that is 4 5m high from top of stove to top of pot should be high enough to ensure the stove has sufficient draft.

How high should a chimney be above the roof uk.

Specifications aren t there to merely cause you problems. At this point we cover everything in the rule. For most small structures like small cabins and tiny homes the tallest part of the structure is within 10 of the chimney. If the pitch of the roof is 38 degrees or greater the termination point of the flue or chimney will need to be 2300mm horizontally from the roof line and roofing material.

The horizontal distance from the top of the flue pipe to the roof should be at least 2300mm or it should finish above the ridge unless. For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m. The chimney must extend at least 3 above the highest point where it passes through a roof. The top of the chimney should be at least 3 ft 0 92 m above the roof surface.

And at least 2 higher than any portion of a building within 10. Out of a shed or caravan or boat. They intend to make sure that the chimney draws properly and that a fire hazard does not occur. This height requirement is extremely important for the safety of the chimney system.

At the same time it should be at least 2 feet higher than any part of the building that is within 8 feet. With a modern twin wall system you should get away with 3 5m or even 3m if you have to e g. The flue termination is within 600mm horizontally of the ridge in which case the flue finish at least 600mm above the ridge. This specification makes sure steep roof slopes are cleared.

The chimney is a minimum for 3 above the uphill side of the roof and 2 higher than anything within 10 feet. Vertical blue line along the left side of the chimney in our photo. Most wood stove and factory built fireplace manufacturers and local building codes will require that the chimney must extend at least 2 feet above any portion of any structure within 10 feet measured horizontally and must extend at least 3 feet above the highest point of its roof penetration. If you have a window anywhere near then check out the regulations adj diagram 17.

If the pipe is farther than 10 feet from the roof peak. Degrees the height of flue or chimney stack will need to be at least 1800mm above the roof when not close to the ridge. The chimney opening above the roof of a sticks and bricks house should be 3 feet above the roof line or 2 feet above any part of the building within 10 whichever is higher.