If there is a steep roof or nearby obstruction the chimney will need more length above the roof to meet code.
Stove pipe height above roof.
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.
And at least 2 higher than any portion of a building within 10.
In the photo below you can see where the braces currently attach 41 inches above the collar.
Vii the chimney shall extend at least three feet above the part of the roof through which it passes and at least two feet above the highest elevation of any part of the manufactured home within 10 feet of the chimney.
This rule refers to the proper height of the chimney pipe above the roof.
It means any pipe penetrating a roof must be three feet above the roof line on the up slope side of the penetration.
They intend to make sure that the chimney draws properly and that a fire hazard does not occur.
This will bring the total height of the pipe not including the cap to 85 inches.
If the pipe is farther than 10 feet from the roof peak it must be 2.
You can leave solid pack chimneys exposed and braced.
Most wood stove and factory built fireplace manufacturers and local building codes will require that the chimney must extend at least 2 feet above any portion of any structure within 10 feet measured horizontally and must extend at least 3 feet above the highest point of its roof penetration.
Vertical blue line along the left side of the chimney in our photo.
This is an altered 10 2 rule.
The top of the chimney should be at least 3 ft 0 92 m above the roof surface.
For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m.
The 10 foot rule explains the clearance you need.
Explained the chimney pipe must be a minimum of three feet above the roof but also two feet taller than anything within ten feet.
Currently the pipe is 6 inches above the roof peak.
The termination cap is installed above this point.
If you ve been researching class a chimney pipes you ve probably heard of the 3 2 10 foot rule numerous times.
Specifications aren t there to merely cause you problems.
The chimney must extend at least 3 above the highest point where it passes through a roof.
3 feet out the roof unless the stack is within 10 feet of the ridge then 2 feet is the minimum.
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.
This specification makes sure steep roof slopes are cleared.
