(1)
A chimney flue shall extend not less than
(a)
900 mm above the highest point at which the chimney comes in contact with the roof, and
(b)
600 mm above the highest roof surface or structure within 3 m of the chimney. (See Note A-9.21.4.4.(1))
A chimney flue shall extend not less than
900 mm above the highest point at which the chimney comes in contact with the roof, and
600 mm above the highest roof surface or structure within 3 m of the chimney. (See Note A-9.21.4.4.(1))