How High Chimney Above Roof

And at least 2 higher than any portion of a building within 10.

How high chimney above roof.

If the chimney or flue exits the roof within 600mm horizontally of the ridge then the flue or chimney should be a minimum of 600mm above the ridge. A chimney should be at least two feet above the highest roof point. Flues need to be 600mm higher than the highest part of the roof within 3 metres. Chimney height may need to be increased by 2 3 per 1000 feet of elevation although added height generally equates to stronger draft there is a point where the system can become too long and over drafting might occur.

If the pipe is farther than 10 feet from the roof. Diagram 2 shows the area on a traditionally constructed non flammable material roof where the flue must not terminate. If there is a steep roof or nearby obstruction the chimney will need more length above the roof to meet code. Other factors can influence the necessary height of the chimney such as house stack effect and high altitude.

There are strict codes that govern chimney placement for fire safety reasons. Specifications aren t there to merely cause you problems. 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 most small structures like small cabins and tiny homes the tallest part of the structure is within 10 of the chimney.

They intend to make sure that the chimney draws properly and that a fire hazard does not occur. You can leave solid pack chimneys exposed and braced. 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 chimney must extend at least 3 above the highest point where it passes through a roof.

Homes built on varying terrain have their own set of chimney and flue regulations. It means any pipe penetrating a roof must be three feet above the roof line on the up slope side of the penetration. 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.