52. Curbs. Curbs around roof openings shall have a flashing turned down on the inside about 3 inches and secured with nails 1½ inches apart. It shall extend out on the roof as specified for base flashings.

53. Edge-Strips. Where indicated on the drawings, flashings shall be secured by brass edge-strips, ⅛ inch thick by 1¼ inches wide. Strips shall be fastened to the vertical face of the projection by brass screws about 12 inches apart, and set to allow the copper flashing to be hooked over the lower edge at least ⅜ of an inch.

54. Drips. Where indicated on the drawings, form drips of 24-ounce hard (cornice temper) copper strips. These shall be nailed to the projection and bent down. They shall project not more than ⅜ of an inch below the sheathing or the upper fillet of the molding, and shall have the flashing hooked over the lower edge at least ⅜ of an inch.

55. Eaves-Strips. Install strips of copper along all eaves and roof edges except where gutters occur. They shall have a ½-inch folded lower edge projecting ⅜ of an inch below the sheathing or fillet of the molding to form a drip, and shall extend back on the roof 3 inches. At the intersection of vertical roof surfaces they shall have a folded rib of height equal to the thickness of roofing. They shall be installed in not exceeding 96-inch lengths, with 2-inch end laps, shall be laid underneath the sheathing paper and nailed along the inside edge.

56. Eaves Trough and Hangers. Eaves trough, or half-round hanging gutters, of the size and type shown, shall be installed where shown on the drawings. They shall be in 10-foot lengths and shall be joined by a 1-inch lapped and soldered joint, or by slip joints. All joints shall be made in the direction of the flow.

   Eaves trough shall be provided with end pieces, end caps, outlet tubes and mitres as required.

   Eaves trough shall be supported by (1) copper or brass strap or rod hangers of approved design; (2) heavy copper wire hangers; or (3) cast brass hook-type hangers.

   (-1.) Strap and rod hangers shall be spaced not more than 36 inches apart and shall be secured to the roofing by brass screws.

   (-2.) Wire hangers shall be spaced not more than 24 inches apart and shall be secured to the roofing by heavy copper nails.

   (-3.) Cast brass hangers shall be adjustable for slope and shall be spaced not more than 36 inches apart. They shall be secured by brass screws.

57. Molded Gutters. Molded gutters of the size and design shown shall be installed where indicated on the drawings. They shall have a flange which shall extend up on the roof sheathing as far as possible without puncture by nails, and shall be held in place by cleats 30 inches apart.

   If impracticable to provide the flange, the gutter edge shall be locked and soldered to a flashing strip set as above specified.

   The outer edge of the gutter shall be stiffened by a brass rod or rectangular bar, and provided with a proper drip. Braces of heavy copper or brass, spaced 30 inches, shall be locked around or riveted to the outer edge, and secured to the roof sheathing above the flange or flashing by 2 brass screws.

   Joints of molded gutters shall lap 1 inch and be secured with rivets spaced 1 inch, and soldered.

   Outlets shall be provided with tubes soldered to the gutter of proper length to connect to the leaders.

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