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File Documents.600 E Main St.0214.2019 (10).ARBK
lest ilumwe 1Vnmher Sketch Brief neseription Year Frequencies Tested .Source of D211 STC 1, min 2x 10 joists, 1600.c. 2. 19132" tongue and groove plywood. 4. resilient channeir, 24'o.c. 5. 518" gypsum board screwed 12b.c. 6. min P thick sound attenuation blanket. Geiser and Hemme APA-1ST 1971 l6t American Plywood Assn. 2,1,LT.