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2. At door sills: where no threshold is used - 5/8"maximum to finish floor surface <br /> where threshold is used - 1/4"maximum between door and threshold <br /> where required for hardware operation - as recommended by hardware manufacturer <br /> 3. Between meeting edges of pairs of doors- 1/8" <br /> 2.04 METAL FRAMES <br /> A. Provide custom metal frames of the types and styles indicated on the drawings or schedules and complying with SDI <br /> 100 for materials and construction requirements. <br /> B. Provide metal frames for doors, transoms, sidelights, borrowed lights, and other openings, as shown on the <br /> drawings. Provide thermally broken frames at exterior wall. <br /> C. Miter comers on face of all frames, internally weld face and grind smooth exterior. Die coped frames at mullions <br /> and stops. Provide with floor anchors. <br /> D. Provide one removable and one fixed stop at perimeter of openings for glazed frames. Removable stop on secure <br /> side. <br /> ' E. Provide closed metal covers over all hardware cutouts to protect against mortar. <br /> F. Provide integral channel frames, subframes and stiffeners to structure where indicated or required for fastening and <br /> stiffening frames. <br /> G. In masonry walls,provide three(3)- 16 gauge corrugated, adjustable, slip type standard frame anchors up to 7'-6" <br /> height jamb;frames T-6"to 8'-0"-4 anchors;frames over 8'-0"- 1 anchor for each 2'or fraction thereof in height. <br /> ' In labeled frames,anchors shall be non-removable. <br /> H. Provide steel spreader temporarily attached to feet of both jambs for welded frames. <br /> I. Provide three factory installed silencers on single door frames at strike jamb; four(two at each head) silencers on <br /> double door frames. <br /> J. Hinge reinforcements to have 10 gauge straps welded directly above and below each hinge pocket. <br /> 2.05 FLUSH HOLLOW METAL DOOR <br /> A. Provide custom metal doors for the types and styles indicated on the Drawings or schedules and complying with <br /> SDI 100 for materials and construction requirements. Fully insulate exterior doors. <br /> B. Close top and bottom edges of all doors with a continuous recessed steel channel not less than 16 ga., full width <br /> spot welded to both faces. Provide an additional flush closing channel at top edge for exterior doors. Provide <br /> openings to bottom closure of exterior door to permit escape of moisture. <br /> IC. Edge profiles to be 1/8"bevel in 2". <br /> D. Provide glass light openings as indicated complete with one fixed stop and one removable stop fastened with flat <br /> head phillips screws not over 10 inches o.c. <br /> E. For 60 minute and greater rated doors installed in enclosed stairways,conform to maximum transmitted temperature <br /> end point of 450°as specified in UBC Standard No.43-2. <br /> F. All doors to have minimum 16 gauge lock reinforcement and either continuous 14 gauge hinge rail or minimum 8 <br /> gauge plate hinge reinforcement. <br /> i <br /> ' 08100-3 No.99132-CP2 <br />