In reading my Code Check book, I confirmed that the chimney I saw today does not meet the minimum termination requirement of 3’ above any point passing through the roof. In this case, the chimney cover was located less than 1’ above the ridge. My question is why is there a minimum termination requirement for the chimney above the roof? I can see whey the 2’ within 10’ rule is there, but not this. Anyone care to comment?
BTW, this chimney had a flue cap and spark arrestor. There were tree limbs within 5’.