18-29-1104.3 Floor drains.

   Floor drains shall not be connected to a storm drain.

18-29-1105 Roof Drains.

18-29-1105.1 Strainers.

   Roof drains shall have strainers extending not less than 4 inches (100 mm) above the surface of the roof immediately adjacent to the roof drain. Strainers shall have an available inlet area, above roof level, of not less than one and one-half times the area of the conduct or leader to which the drain is connected. All downspouts from gravel roofs shall be fitted with serviceable devices to screen out loose gravel.

18-29-1105.2 Flat decks.

   Roof drain strainers for use on recreational decks, sun decks, parking decks and similar areas that are normally serviced and maintained shall comply with Section 18-29-1105.1 or shall be of the flat-surface type, installed level with the deck, with an available inlet area not less than two times the area of the conductor or leader to which the drain is connected.

18-29-1105.3 Roof drain flashing.

   The connection between roofs and roof drains which pass through the roof and into the interior of the building shall be made water tight by the use of approved flashing material. Refer to Section 18-29-305.7.

18-29-1105.4 Maximum area.

   A single roof drain head shall not exceed 13,000 square feet (1,208 m 2 ).

18-29-1106 Size of Conductors, Leaders and Storm Drains.