Section
11 Drywall, Metal Framing, and Plaster
Contents 11.0.0 11.0.1 11.0.2 11.0.3 11.0.4 11.0.5 11.1.0 11.1.1 11.1.2 11.1.3 11.1.4 11.1.5 11.1.6 11.1.7 11.1.8 11.1.9 11.1.10 11.1.11 11.2.0 11.3.0 11.4.0 11.5.0 11.6.0
Drywall systems Non-load-bearing partitions Load-bearing partitions High-performance sound control Wall furring (partition details) Non-load-bearing ceilings Partition construction details (illustrated) Control joint detail at door Two-hour rated control joint detail Rated drywall ceilings Rated shaftwalls (to structure above) Rated shaftwall (to structural steel beam) Rated shaftwall adjacent to beam Two-hour wall perpendicular to metal deck flutes One-hour deflection track perpendicular to flutes Two-hour horizontal duct protection Details at elevator entrances Adjacent electrical box installation Plumbing fixture attachment and electric outlet installation Tub and shower details—singlelayer panels Wall control joint details (illustrated) Typical bath tub and swimming pool wall details Soffit framing specifications
11.7.0 11.8.0 11.9.0 11.10.0 11.10.1 11.10.2 11.10.3 11.11.0 11.12.0 11.12.1 11.13.0 11.14.0 11.15.0 11.16.0 11.17.0 11.18.0 11.19.0 11.20.0 11.21.0
Shelf-wall specifications and illustrations Chase-wall specifications and illustrations Resilient channel partition specifications Tall wall specifications and limiting heights L over 120/240/360 explained Structural stud specifications Fire-rated assemblies, one to three hour High-performance sound-control construction (illustrated) Curtain wall construction (illustrated) Typical curtain-wall limiting-height specifications Wind load tables—height limitations (12" on center) Wind load tables—height limitations (16" on center) Wind load tables—height limitations (24" on center) Axial load tables—5 psf wind load Axial load tables—25 psf wind load Axial load tables—30 psf wind load Axial load tables—40 psf wind load Weld and fastener tables Shaftwall and stairwall structural properties
647
648
Section 11
11.22.0 11.23.0 11.23.1 11.23.2
Area separation walls—fire and sound test references Plaster systems Comparing conventional plaster, veneer plaster, and drywall systems Lath and plaster installation procedures
11.23.3 11.24.0 11.25.0
Lath, framing, and furring accessories Five levels of drywall-taping systems Gypsum drywall—Quality Control checklist
Drywall, Metal Framing, and Plaster
649
11.0.0 Drywall Systems Steel or wood studs, faced with gypsum panels (regular, fire rated or vinyl faced) have dominated the construction industry, representing the most cost-effective light weight, and fire resistant means of creating interior walls. Specialty products, such as 1⁄2-inch (12 mm) thick cement board, sometimes referred to as Wonder board and exterior-grade gypsum sheathing panels, along with the development of heavier-gauge structural metal studs for curtain wall construction, has expanded the number of applications to which these products can be used.
650
Section 11
11.0.1 Non-Load-Bearing Partitions
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
11.0.1 Non-Load-Bearing Partitions—Continued
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
651
652
Section 11
11.0.2 Load-Bearing Partitions
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
11.0.3 High-Performance Sound Control
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
653
654
Section 11
11.0.4 Wall Furring (Partition Details)
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
11.0.5 Non-Load-Bearing Ceilings
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
655
656
Section 11
11.1.0 Partition Construction Details (Illustrated)
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
11.1.1 Control Joint Detail at Door
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
657
658
Section 11
11.1.2 Two-Hour Rated Control Joint Detail
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
Drywall, Metal Framing, and Plaster
11.1.3 Rated Drywall Ceilings
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
659
660
Section 11
11.1.4 Rated Shaftwalls (To Structure Above)
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
Drywall, Metal Framing, and Plaster
11.1.5 Rated Shaftwall (To Structural Steel Beam)
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
661
662
Section 11
11.1.6 Rated Shaftwall Adjacent To Beam
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
Drywall, Metal Framing, and Plaster
11.1.7 Two-Hour Wall Perpendicular To Metal Deck Flutes
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
663
664
Section 11
11.1.8 One-Hour Deflection Track Perpendicular To Flutes
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
Drywall, Metal Framing, and Plaster
11.1.9 Two-Hour Horizontal Duct Protection
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
665
666
Section 11
11.1.10 Details at Elevator Entrances
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
Drywall, Metal Framing, and Plaster
11.1.11 Adjacent Electrical Box Installation
(By permission from the National Gypsum Company, Charlotte, North Carolina.)
667
668
Section 11
11.2.0 Plumbing Fixture Attachment and Electric Outlet Installation
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
11.3.0 Tub and Shower Details—Single-Layer Panels
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
11.4.0 Wall Control Joint Details (Illustrated)
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
669
670
Section 11
11.5.0 Typical Bath Tub and Swimming Pool Wall Details
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
671
11.6.0 Soffit Framing Specifications This assembly consists of galvanized steel channel runners and studs faced with Sheetrock brand Gypsum Panels, screw attached. It is a lightweight, fast and economical method of filling over cabinets or lockers and of housing overhead ducts, pipes or conduits. The braced system permits constructing soffits with depths of 48" (vertically) and widths to 72" (horizontally). The unbraced system is for soffits up to 24" 24". Maximum Width and Depth Dimensions(1) Gypsum board thickness(2) in.
Steel stud size
mm
in.
⁄2
12.7
13⁄8
⁄2
12.7
21⁄2, 31⁄8
⁄8
15.9
1 ⁄8
⁄8
15.9
2 ⁄2, 3 ⁄8
1
1
5
5
3
1
1
mm
Maximum width
Maximum depth for max. width shown
in.
mm
in.
mm
41.3
60
1500
48
1200
63.5, 92.1
72
1800
36
900
41.3
60
1500
30
800
63.5, 92.1
72
1800
18
500
(1) The construction is not designed to support loads other than its own dead weight and should not be used where it may be subjected to excessive abuse. (2) The double-layer system and 1⁄8" thick gypsum panels are not recommended for this construction.
11.7.0 Shelf-Wall Specifications and Illustrations This system provides load-carrying walls for shelving in stores, offices, schools and other applications. Incorporating simple, quickly erected, economical steel stud components with Garcy shelf brackets, standards and accessories, the assembly offers advantages of steel stud-drywall construction plus structural strength to support shelving and merchandise. In this assembly, 35⁄8" steel studs spaced no more than 24" o.c. are securely fastened to floor and ceiling runners and surfaced with either single or double-layer Sheetrock brand Gypsum Panels. Slotted standards are screw-attached through gypsum board to studs or steel reinforcing inserted between layers.
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
672
Section 11
11.8.0 Chase-Wall Specifications and Illustrations
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
11.9.0 Resilient Channel Partition Specifications
673
674
Section 11
11.10.0 Tall Wall Specifications and Limiting Heights Partitions exceeding 30' in height are considered tall. When these taller than normal partition heights are required, consideration must be given to length restrictions for manufacturing and shipping steel studs, scaffolding, stud placement, etc. Use double structural studs back-to-back 24" o.c. The studs should be the maximum practical length so that the splice of one stud in each pair will occur at outer 1⁄3 of the span. The splice of the other stud will occur at the opposite end. Attach studs back to back with screws approximately 4' o.c. Attach each stud flange to top and bottom runner with 1⁄2" Type S-12 screws so that each pair of studs will have four screw attachments at each end. Attach 11⁄2" 20 ga. V-bracing to stud flanges on each side assembly 12' o.c. for stud alignment and lateral bracing. For 5 psf wind load, 20 ga. runner track is recommended. The fasteners should have a capacity of 300 lb. in single shear and bearing. For 10 psf wind load, 18 ga. runner track attached with fasteners with 400 lb. single shear and bearing is recommended.
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
Drywall, Metal Framing, and Plaster
675
11.10.1 L over 120/240/360 Explained Many of the tables included in this section make reference to L/120, L/240, and L/360. For those unfamiliar with these terms, the following explanation is of assistance in understanding the deflection specification included in these tables. The established rule is that a member should not deflect more than 1/360th of the length of its span, when the span is expressed in inches. To convert inches to centimeters, multiply by 2.54. L represents the length of the span, specifically, in the case of L/360, a 30foot (9.144 meter) beam, and this beam should not deflect more than one inch (2.54 centimeters). If the criteria is L/240, then this 240-inch (609.6 cm), 20-foot (6.096 meter) beam shall not deflect more than one inch (2.54 cm).
11.10.2 Structural Stud Specifications
(By permission from the United States Gypsum Corporation, Chicago, Illinois.)
676
Drywall, Metal Framing, and Plaster
11.10.3 Fire-rated Assemblies—One to Three Hour
(By permission from Dale/Incor division of Dale Industries, Dearborn, Michigan.)
677
