5013 S 3RD AVE 2018-06-27 - Laserfiche WebLink

t E AND SMOKE PROTECTION FEATURES TABLE 721.1(2)—continued RATED FIRE-RESISTANCE PERIODS FOR VARIOUS WALLS AND PARTITIONS a,"'P MINIMUM FINISHED ITEM SS FACE-TO- MATERIAL NUMBER CONSTRUCTION FACEb(inches) 4 3 2 1 hours hours hours hour 2"x 4"wood studs 16"on center with two layers of 3/8"regular gypsum wallboard`each side,4d cooler"or wallboard"nails at 8"on center first layer,5d 14-1.1h''" cooler"or wallboard"nails at 8"on center second layer with laminating compound — — — 5 between layers,joints staggered.First layer applied full length vertically,second layer applied horizontally or vertically. 2"x 4"wood studs 16"on center with two layers'/2"regular gypsum wallboard` 14-1.21' applied vertically or horizontally each side'`,joints staggered.Nail base layer with 5d _ 5'/Z cooler"or wallboard"nails at 8"on center face layer with 8d cooler"or wallboard" nails at 8"on center. 2"x 4"wood studs 24"on center with 5/8"Type X gypsum wallboard`applied verti- 14.Wood 14-1.34"' cally or horizontally nailed with 6d cooler"or wallboard"nails at 7"on center with — — — 43/4 studs-interior par- end joints on nailing members.Stagger joints each side. tition with gyp- 2"x 4"fire-retardant-treated wood studs spaced 24"on center with one layer of sum wallboard 14-1.4' 5/8"Type X gypsum wallboard`applied with face paper grain(long dimension)paral- — — — 4.3/4d each side lel to studs.Wallboard attached with 6d cooler"or wallboard"nails at 7"on center. 2"x 4"wood studs 16"on center with two layers 5/8"Type X gypsum wallboard` each side.Base layers applied vertically and nailed with 6d cooler"or wallboard" 14-1.51'" nails at 9"on center.Face layer applied vertically or horizontally and nailed with 8d _ 6 cooler"or wallboard"nails at 7"on center.For nail-adhesive application,base layers are nailed 6"on center.Face layers applied with coating of approved wallboard adhesive and nailed 12"on center. 2"x 3"fire-retardant-treated wood studs spaced 24"on center with one layer of 14-1.6' 5/8 Type X gypsum wallboard`applied with face paper grain(long dimension)at — 8 _ _ 35/d right angles to studs.Wallboard attached with 6d cement-coated box nails spaced 7" on center. Exterior surface with 3/4"drop siding over 72"gypsum sheathing on 2"x 4"wood studs at 16"on center,interior surface treatment as required for 1-hour-rated exterior 15-1.11'"' or interior 2"x 4"wood stud partitions.Gypsum sheathing nailed with 13/4'by No. — — — Var- 11 gage by 7/16"head galvanized nails at 8"on center.Siding nailed with 7d galva- ies nized smooth box nails. 2"x 4"wood studs 16"on center with metal lath and 3/4"cement plaster on each 15-1.2''m side.Lath attached with 6d common nails 7"on center driven to 1"minimum pene- — 53/8 tration and bent over.Plaster mix 1:4 for scratch coat and 1:5 for brown coat,by vol- 15.Exterior or ume,cement to sand. interior walls (continued) 2"x 4"wood studs 16"on center with 7/8"cement plaster(measured from the face of 15-1.31' studs)on the exterior surface with interior surface treatment as required for interior _ _ Var- wood stud partitions in this table.Plaster mix 1:4 for scratch coat and 1:5 for brown ies coat,by volume,cement to sand. 35/8"No. 16 gage noncombustible studs 16"on center with 7,"cement plaster(mea- sured from the face of the studs)on the exterior surface with interior surface treat- Var- 15-1.4 ment as required for interior,nonbearing,noncombustible stud partitions in this — — — ies4 table.Plaster mix 1:4 for scratch coat and 1:5 for brown coat,by volume,cement to iesd sand. (continued) " i/ 19 2012 INTERNATIONAL BUILDING CODE® 153