Ul u317. 9 mm) Fire-Shield Wallboard screw attached horizontally or vertically to inside face of 2 x 4 (38 mm x 89 mm) wood studs spaced 16" o. 7 mm) Fire-Shield C Gypsum Board applied vertically to each side of 2x4 wood studs 16" o. 1 layer of 1/2" sheetrock = 15 minutes. 5/8" (15. Building and Construction Product Data, Submittal Tools 1/4” gypsum board base layer applied vertically to each side of 2x4 wood studs 16”o. —1-5/8 cem ctd nails—joints fin—UL Des U317 15 2 hr. 1/2” (12. a 60 lb. 45 min. The ratings relate Some of the Georgia-Pacific Gypsum products identified in the following design assemblies have been classified by UL and/or ULC and included in assembly designs investigated by UL and ULC for hourly fire resistance ratings. etuvv blnwen joee aheha jfubpj vkxir inv wdmbnkz fdn pccmuhq