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UL U490
Interior Partition - Steel Stud (Non-Load Bearing)
| Fire Rating | 3 hours |
| System STC | 48-52 |
| System Thickness | 6.5 in. |
Assembly Construction
Assembly Construction
Layer 1 - Gypsum Panel:
1 layer 3/4" [19 mm] Sheetrock® Ultracode® Gypsum Panel (UL Type Ultracode)
Layer 2 - Gypsum Panel:
1 layer 3/4" [19 mm] Sheetrock® Ultracode® Gypsum Panel (UL Type Ultracode)
Layer 3 - Steel Studs:
1 layer 3-1/2" [89 mm] steel studs, 20 ga. (0.033"), 24" [610 mm] O.C.
Layer 4 - Insulation:
1 layer 3" [76 mm] mineral wool insulation
Layer 5 - Gypsum Panel:
1 layer 3/4" [19 mm] Sheetrock® Ultracode® Gypsum Panel (UL Type Ultracode)
Layer 6 - Gypsum Panel:
1 layer 3/4" [19 mm] Sheetrock® Ultracode® Gypsum Panel (UL Type Ultracode)
Notes