O-1952-429 - Laserfiche WebLink

Browse Search

'_ RATINGS _ _ - RESISTANCE FIRE RESISTANCE RATINGS FIRE COL UMN PROTECTIONS-Continued Based on Standard Fire WALLS AND PARTITIONS-Continued Tests Ratings Resistance Fire . It Tests Based on Standard Fire Ratings Fire Resistance ~, Rating Protection 1~ in. U.L. listed L-shaped precast concrete units secured to flange of column and metal edge of adjacent unit by steel studs welded in place. Vertical and Hori- zontal joints filled with a 3:1 mix (by volume) of perlite and cement mortar. Fill of 8:1 mix (by vol- ume) of perlite and cement. Other details as specified in U.L. Iistingc, under Column Protection-Design No. 5-4 HR of Details Type Steel Columns ;', f. Rating Construction ~ in. 1 :2, 1:2 gypsum and sand plaster on ~ in. plain gypsum lath attached by nails fitted with 1~ x 1~ in. metal lath pads folded over heads, spaced 8 in. vertically, 16 in. horizontally. (7, 9)"... of Details hr. 1 ~ in. 4:1 gypsum and sand plaster on ~ in. plain gypsum lath; 3 in. strips of metal lath over all joints. (8) Type Wood Stud Partitions, Plastered Studs 2 x 4 in. or larger. Finished each side as noted 4 hrs. hr. 1 2~ in. gypsum-perlite plaster reinforced with poultry netting, on ~ in. gypsum lath boxed around column. Plaster mix: scratch coat 3~ cu. ft. and brown coat 4 cu. ft. U.L. listed perlite plaster aggregate to 100 lb. unfibered gypsum. No fill. Other details as specified in U.L. listingc,under Column Protection-Design No. 4-4 HR . hr. 1 on metal sand plaster and gypsum 1 :2, 1:3 (7, 9) ~ in. lath. hr. 1 metal on sand plaster and gypsum ~ in. 1:2, 1:2 lath. (7, 9) 4 hrs. ~ in. 1:2 gypsum and sand plaster on U.L. listed wire lath (paper-backed fabric) as specified in U.L. listingc, under Walls and Partitions-Design No. 1-1 HR. 4 hrs, 4 hrs. 4 hrs. 1~ in. (measured from face of lath) gypsum-perlite plaster on metal lath spaced 1 ~ in. from column with plaster pushed through to column flanges. Plaster mix: scratch coat 2 cu. ft. and brown coat 3 cu. ft. U.L. listed perlite plaster aggregate to 100 lb. fibered gypsum. No fill. Other details as specified in U.L. Iistingc, under Column Protection-Design No. 2-4 HR. 2 in. portland cement vermiculite plaster reinforced with plain wire fabric, on paperbacked No. 16 gauge welded wire fabric. Plaster mix: 4 cu. ft. U.L. listed vermicu- lite plaster aggregate to 94 lbs. of portland cement. No fill. Other details as specified in U.L. listingc, under Column Protection-Design No; 10-4 HR......... in. gypsum-vermiculite plaster (measured from face of lath) on metal lath spaced 1 in. from column. Plaster mix: 4:1 by weight or approx. 100 lbs. fibered gypsum to 2~ cu. ft. vermiculite. Loose ver- miculite fill. (32) ~ in. (measured from face of lath) gypsum vermicu- lite plaster on self-furring metal lath. Plaster mix: scratch coat 2 cu. ft. and brown coat 3 cu. ft. U.L. listed vermiculite plaster aggregate to 100 lbs. fibered gypsum. No fill. Other details as specified in U.L. Iistingc, under Column Protection-Design No. 9-4 HR. hr 9/16 in. gypsum-perlite plaster on ~ in. perforated gypsum lath. Plaster mix for scratch and brown coats, 2 to 3 cu. ft. U.L. listed perlite to 100 lbs. fibered gypsum. Other details as specified in U.L. Iistingc, under Walls and Partitions- Design No. 7-1 HR . tI hr. 1 ~ in. gypsum-perlite plaster on ~ in. perforated gypsum lath, securely attached by metal clips. Plaster mix: 2~ cu. ft. perlite to 100 lbs. gypsum. (47) hr. 1 ~ in. 1 :1/10 :1/30:2 portland cement, lime, asbestos fiber, sand and 1:3 gypsum and sand plaster on metal lath. (7) hr. 1 1 :1/30:3 portland cement, asbestos plaster on metal lath. (7, 9) ~ in. 1 :1/30 :2', fiber and sand ,.i\ 'I ,/ ~I hr. Two layers % in. gypsum wallboardcc. First layer attached with 2 in. cement coated nails, spaced 9 in. on centers; second layer attached with 2~ in. cement coated nails spaced 7 in. on centers. Vertical joint between boards on same stud for each layer. Joint to fall on adjacent stud on op- posite side. Joints covered with fiber tape and cement. (86) Wood Stud Partitions Without Plaster Studs 2 x 4 in. or larger. Finished each side as noted 4 hrs. 3 hrs, in. gypsum-perlite plaster reinforced with wire mesh, on two layers of ~ in. gypsum lath boxed around column and fastened with wire ties. Plaster mix: 100 lbs. gypsum to 2~ cu. ft. perlite. (92) .................. 1~ in. gypsum-perlite plaster reinforced with wire mesh, on ~ in. gypsum lath boxed around column and fastened with wire ties. Plaster mix: lOa lbs. gypsum to 2~ cu. ft. perlite. (92) 2 hrs.bb Two layers % gypsum wallboardcc. First layer applied vertically with edge joints on the studs and attached with 1~ in. cement coated nails spaced 6 in. on centers; second layer applied horizontally with edge joints off the studs and attached with I~ in. cement coated nails spaced 12 in. on centers. All joints and nailheads covered with tape and joint finisher. Other details as specified in U.L. Iistingc, under Walls and Partitions-Design No. 4-2 HR. 3 hrs. ~ in. gypsum-perlite plaster, on two layers of ~ in. gypsum lath boxed around column and fastened with wire ties. Plaster mix: scratch coat 2 cu. ft. and brown coat 3 cu. ft. perlite to 100 lbs. gypsum. (92) 47. 2hrs.bb 3 hrs. page to notes, refer 13 superscripts Letter . It page 47. to notes, Letter superscripts refer 44 · Nonbearing.