SECTION 08583

Jul 06, 2018 · Ventilator contacts applied to frame at jambs shall be formed from sheet steel not less than #12 gauge and 1-5/8 inches deep. H. Plates and Covers: 1. Removable access plates of sheet steel not less than #12 gauge having 3/4 inch caulking returns, shall be provided at interior head and jambs. 2. ................
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