How High Should Your Chimney Be Above The Roof

This doesn t necessarily mean the pipe must be above the tallest part of the roof which is known as the ridge.

How high should your chimney be above the roof.

However in most cases it will be around 3 metres. Chimneys need to be high enough to ensure that smoke is directed away from where it might be harmful to your neighbours. If your home is at a particularly high altitude i recommend consulting a professional in your area when it comes to these particular specifications. But the pipe will require a 10 horizontal clearance from the roof.

Knowing the pitch of the roof is extremely helpful in determining the height the chimney pipe must be above the roof. This can cause draft problems. If the pipe is farther than 10 feet from the roof. 0 60m above the tip highest point of the roof but as long as it is above the roof it will work ok and not smoke how high should a chimney top be.

Easy calculation for chimney pipe height. 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. 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. This is why the rule calls for the chimney to extend 2 feet above any structure within 10 feet of the chimney.

The height of the chimney above the roof surface measured at the up slope side of the chimney from the roof surface to the chimney top should be at least three feet the green line in our photo. A chimney should be at least two feet above. This is a bit of an odd measurement and chimney clearance case because the chimney side is actually about 8 away from the roof edge. For 18 feet of run you would have a rise of 72 inches.

In the case of stainless steel system chimneys the manufacturer s installation instructions should be consulted. Many people mistakenly think that the pipe always has to be 2 feet above the roof peak. 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.

Let s look at a couple of examples.