How High Above Hip Roof Should Duravent Stove Pipe Be

First you ll need to know the pitch of your roof.

How high above hip roof should duravent stove pipe be. Determine the number of chimney pipe lengths required. To calculate the installed per length of 6 8 duraplus chimney pipe subtract 1 1 2 per joint. Measure the roof pitch. The termination cap is installed above that point.

Select the proper flashing and storm collar. Roof pitch is easily calculated and if you don t know how read my article understanding and calculating roof pitch. A snorkel termination may be used if height restrictions prevent adequate rise above the appliance. Building codes require a minimum of 3 above the roof penetration 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. The termination cap is installed above this point. 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. This will bring the total height of the pipe not including the cap to 85 inches.

Determine the minimum height above the roof. Vertical blue line along the left side of the chimney in our photo. If chimney is more than 4 above the roof penetration an extended roof bracket is required. Minimum chimney height at sea level of straight vertical chimney is 10 to 15 above the appliance outlet.

If the chimney extends more than 5 above the roofline an extended roof bracket must be installed at every 5 increment of chimney height above the roofline leaving no more than 5 of chimney extending above the last pipe bracket. The extended roof bracket consists of the pipe band the adjustable legs and the roof brackets. If the pipe is farther than 10 feet from the roof peak. For horizontal installations check the appliance manufacturer s instructions for minimum rise and maximum horizontal run.

Subtract 1 1 2 per joint of dvl stovepipe. This specification makes sure steep roof slopes are cleared. The chimney must extend at least 3 feet above the highest point where it passes through the roof and be at least 2 foot higher than any part of the building within a horizontal distance of 10 feet figure 2. Measure the roof pitch.

For gas vents or a type l vent this distance above the roof surface must be at least 2 ft 0 61m. Hopefully this will be enough. Currently the pipe is 6 inches above the roof peak.