Fire-Resistant Assemblies - USG Corporation

E
Structural Fireproofing
Column
2 Hour Fire-Rated Construction Reference
Construction Detail Description Test Number Comments Index
3 Hour Fire-Rated Construction
1"
1 1 ⁄2" 3 1 ⁄8"
1"
2 1 ⁄4"
2 1 ⁄8"
4 7 ⁄8"
• 1/2" Sheetrock Firecode C Core gypsum UL Des X524 Varies E-10
panels Rating also applies to tapered or constant-
– 1-5/8" 25 gauge steel studs section prefab ricated metal building columns
– joints finished
• optional veneer plaster
– 3.4 lb self-furring diamond mesh metal lath UL Des X402 Structural member tested: E-11
wrapped around column W10 x 49
• 1" 100:2-100:3 gypsum-perlite plaster
– perlite aggregate bearing UL Label
• 2 layers 5/8" Sheetrock Firecode Core panels UL Des X528 Structural member tested: E-12
1-5/8" 25 gauge steel studs W10 x 49
– No. 28 MSG 1-1/4" leg corner bead fastened to
wallboard with No. 6x1" screws
– joints finished
• 3 layers 5/8" Sheetrock Firecode Core panels UL Des X528 Structural member tested: E-13
1-5/8" 25 gauge steel studs Tube steel column
– No. 18 gauge SWG steel wire 24" o.c. wrapped 4 x 4 x 0.188"
around second layer
– No. 28 MSG 1-1/4" leg corner bead fastened to
wallboard with No. 6x1" screws
– joints finished
• 2 layers 3/4" Sheetrock Ultracode Core panels UL Des X528 Structural member tested: E-14
– 1-5/8" 25 gauge steel studs Tube steel column
– No. 28 MSG 1-1/4" leg corner bead fastened to 8 x 8 x 0.25"
wallboard with No. 6x1" screws
– joints finished
• 3/4" Sheetrock Ultracore Core gypsum UL Des X528 Structural member tested: E-15
panels second layer wrapped with no. 18 SWG W4 x 13
steel wire spaced 24" o.c. W6 x 15.5
– 1-5/8" 25 gauge steel studs
– No. 28 MSG 1-1/4" leg corner bead fastened
to wallboard with No. 6 x 1" screws
– joints finished
• 1/2" Sheetrock Firecode C Core gypsum UL Des X514 Structural member tested: E-16
panels W14 x 228
– 1-5/8" 25 gauge steel studs at col corners
– joints finished
• optional veneer plaster
54 USG Fire-Resistant Assemblies