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.
How high should chimney be above roof peak.
For larger structures the result will depend on the roof pitch.
For the next example you have a shorter chimney height.
Usually unless you have a really shallow pitch roof you will have the 3 foot minimum height after satisfying the 2 foot above the nearest roof line within ten feet rule.
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 chimney must extend at least 3 above the highest point where it passes through a roof.
The stove pipe wasn t far above the top of the roof and wind blew smoke back into the house.
This doesn t necessarily mean the pipe must be above the tallest part of the roof which is known as the ridge.
And at least 2 higher than any portion of a building within 10.
I have heard that the top of a wood burning stove pipe needs to be a certain height above the peak of the roof to work properly.
That is correct but the chimney has to be at least 3 feet high overall.
If your peak to penetration distance is 7 feet you would have a rise of 28 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.
I used to have a flat roof on the house.
Don t forget to add in minimum chimney height.
If the pipe is farther than 10 feet from the roof peak it must be 2.
Anon the chimney outlet needs to not only be proper height above the roof surface but proper distance from any opening that could take flue exhaust.
Specifications aren t there to merely cause you problems.
Knowing the pitch of the roof is extremely helpful in determining the height the chimney pipe must be above the roof.
In that case the chimney needs to be 2 above the peak of the roof or 3 above the roof line whichever is higher.
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.
If you go through the peak you need 3 feet.
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.
Easy calculation for chimney pipe height.
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.
The 10 foot rule explains the clearance you need.
I had the roof you see in the photos done in 1991.
.jpg)
