Architectural · A-JANQA

Fire Rated Partition Control Joint

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A fire-rated control joint occurs in a gypsum board partition assembly constructed per GA Design No. GA-234-08, with two layers of 5/8-inch Type X gypsum board fastened with number 10 sheet metal screws at 24 inches on center. A metal control joint is embedded between the gypsum panels with a mud joint and joint compound feathered 2 inches beyond the joint, then sanded smooth for paint. Partition types are selected per plan, and dimensions allow for a maximum 1/2-inch joint width.

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