18-29-1110.2 Control devices.
   The control devices shall be installed so that the rate of discharge of water per minute shall not exceed the values for continuous flow as indicated in Section 18-29-1110.1.1. A scupper drain or drains shall be placed in the parapet wall at an invert elevation 1/2 inch (12 mm) above the maximum designed head. The scupper shall have a cross sectional area equal to that as required for conventional roof drainage. Control of runoff from roofs shall be by pre-calibrated tamper proof weirs; no valves or mechanical devices shall be permitted.
   Exception: Scuppers are not permitted in fire walls provided in accordance with Chapter 15-8 or 14B-7, as applicable.
(Amend Coun. J. 4-10-19, p. 100029, Art. XVI, § 13)