How High Should Chimney Be Above Roof Peak

And at least 2 higher than any portion of a building within 10.

How high should chimney be above roof peak.

For larger structures the result will depend on the roof pitch. If the pipe is farther than 10 feet from the roof peak it must be 2. This rule refers to the proper height of the chimney pipe above the roof. Per the 10 and 2 rule once you are at the level of the peak you only need to be 2 feet above it.

The top of the chimney should be at least 3 ft 0 92 m above the roof surface. This reduces the actual required height by 12 inches from our previous calculation of 64 inches. Both above the flat roof and 2 feet above the point at which a horizontal line from the chimney would touch the highest portion of the nearest roof. The top of a chimney pipe must extend at least 2 feet above the peak of the roof if the pipe is within 10 feet of the peak.

For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m. For a building with flat or shallow pitched roof the chimney needs to be 3 feet above the point where it passes the roof line. Vertical blue line along the left side of the chimney in our photo. The current code states that chimney openings need to be at least 300mm higher than the highest part of any roof within 3 6 metres of the chimney.

So 28 inches plus 24 inches is a chimney height of only 52 inches. Specifications aren t there to merely cause you problems. The 10 foot rule explains the clearance you need. They intend to make sure that the chimney draws properly and that a fire hazard does not occur.

Minimum three feet above the high side of the roof at least two feet taller than anything within ten feet. If your peak to penetration distance is 7 feet you would have a rise of 28 inches. The chimney must extend at least 3 above the highest point where it passes through a roof.