How High Should Chimney Be Above Roof Peak

The top of the chimney should be at least 3 ft 0 92 m above the roof surface.

How high should chimney be above roof peak.

And at least 2 higher than any portion of a building within 10. For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m. 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 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.

In that case the chimney needs to be 2 above the peak of the roof or 3 above the roof line whichever is higher. This rule refers to the proper height of the chimney pipe above the roof. Minimum three feet above the high side of the roof at least two feet taller than anything within ten feet. Explained the chimney pipe must be a minimum of three feet above the roof but also 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 10 foot rule explains the clearance you need. This reduces the actual required height by 12 inches from our previous calculation of 64 inches. The chimney must extend at least 3 above the highest point where it passes through a roof.

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

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. They intend to make sure that the chimney draws properly and that a fire hazard does not occur. This specification makes sure steep roof slopes are cleared.