9227 4TH AVE W 2024-08-12 - Laserfiche WebLink

6/14/23,3:07 PM Chapter 7: Fire and Smoke Protection Features,2021 Washington State Building Code I UpCodes each side.For three-coat work,the plaster mix for the second coat shall not exceed 100 pounds of gypsum to 21/2 cubic feet of aggregate for the 1-hour system. 3/4"by 0.055"(No. 16 carbon sheet steel gage)vertical cold-rolled channels, 16"on center with 3/8" 6-1.3 gypsum lath applied to one face and attached with sheet metal clips.Gypsum plaster each side mixed 1:2 — — — 2d by weight,gypsum to sand aggregate. 6 2.1 Studless with 1/2"full-length plain gypsum lath and gypsum plaster each side.Plaster mixed 1:1 for — — — 2d scratch coat and 1:2 for brown coat,by weight,gypsum to sand aggregate. 6-2.2 Studless with full-length plain gypsum lath and perlite or vermiculite gypsum plaster each side. — — 21/2d 2d 6-2.3 Studless partition with 3/8"rib metal lath installed vertically adjacent edges tied 6"on center with No. 18 — — — 2d gage wire ties,gypsum plaster each side mixed 1:2 by weight,gypsum to sand aggregate. Perlite mixed in the ratio of 3 cubic feet to 100 pounds of Portland cement and machine applied to stud 7.Solid perlite and side of 11/2"mesh by 0.058-inch(No. 17 B.W.gage)paper-backed woven wire fabric lath wire-tied to 4"- i d Portland cement 7 1.1 deep steel trussed wired studs 16"on center.Wire ties of 0.049"(No.18 B.W.gage)galvanized steel wire 6" — — 3 /8 on center vertically. 8.Solid neat wood 3/4'by 0.055-inch(No.16 carbon sheet steel gage)cold-rolled channels, 12"on center with 2.5-pound flat fibered gypsum 8-1.1 metal lath applied to one face and tied with 0.049"(No. 18 B.W.gage)wire at 6"spacing.Neat gypsum — — 2d — plaster plaster applied each side. One full-length layer'/2"Type X gypsum wallboarde laminated to each side of 1"full-length V-edge 9.Solid wallboard 9-1.1 gypsum coreboard with approved laminating compound.Vertical joints of face layer and coreboard — — 2d — partition staggered not less than 3". One full-length layer of 5/g"Type X gypsum wallboarde attached to both sides of wood or metal top and 10 1.1 bottom runners laminated to each side of 1"x 6"full-length gypsum coreboard ribs spaced 2"on center — — — 21/ d with approved laminating compound. Ribs centered at vertical joints of face plies and joints staggered 24" 4 10. Hollow(studless) in opposing faces.Ribs may be recessed 6"from the top and bottom. gypsum wallboard partition 1"regular gypsum V-edge full-length backing board attached to both sides of wood or metal top and bottom runners with nails or 1 s/8"drywall screws at 24"on center. Minimum width of runners 1 s/8". Face — — 5 d — 10 1.2 layer of 1/2"regular full-length gypsum wallboard laminated to outer faces of backing board with 4 /8 approved laminating compound. 11. Noncombustible 11-1 1 31/4"x 0.044"(No.18 carbon sheet steel gage)steel studs spaced 24"on center.5/8"gypsum plaster on — — — 43/4d studs—interior metal lath each side mixed 1:2 by weight,gypsum to sand aggregate. partition with plaster each side 33/8"x 0.055"(No.16 carbon sheet steel gage)approved nailablek studs spaced 24"on center.5/8"neat 11-1.2 gypsum wood-fibered plaster each side over 3/8"rib metal lath nailed to studs with 6d common nails,8" — — 55/8 — on center.Nails driven 11/4'and bent over. 11-1.3 4"x 0.044"(No. 18 carbon sheet steel gage)channel-shaped steel studs at 16"on center.On each side — 75/8d — — approved resilient clips pressed onto stud flange at 16"vertical spacing,1/4'pencil rods snapped into or https://up.codes/viewer-export/washington/wa-building-code-2021/chapter/7/fire-and-smoke-protection-features#721.1 3/lD 8/28