How High Should Your Chimney Be Above The Roof

For most small structures like small cabins and tiny homes the tallest part of the structure is within 10 of the chimney.

How high should your chimney be above the roof.

Specifications aren t there to merely cause you problems. Vertical blue line along the left side of the chimney in our photo. This specification makes sure steep roof slopes are cleared. 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. And at least 2 higher than any portion of a building within 10. The 10 foot rule explains the clearance you need. 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.

If the pipe is farther than 10 feet from the roof peak. The top of the chimney should be at least 3 ft 0 92 m above the roof surface. Distance matters 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.