SECTION 05 40 00

COLD-FORMED METAL FRAMING

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PART 1    GENERAL
1.1	SECTION INCLUDES
A.	Load-bearing steel stud exterior and interior wall framing.
B.	Non-load-bearing steel stud exterior and interior wall framing.
C.	Steel soffit framing.
D.	Steel floor joist framing.
E.	Steel ceiling joist framing.
F.	Steel stud truss framing.
1.2	RELATED SECTIONS
A.	Division 01: Administrative, procedural, and temporary work requirements.
1.3	REFERENCES
A.	American Iron and Steel Institute (AISI):
1.	Specification for the Design of Cold-Formed Steel Structural Members.
2.	AISI S210 - North American Standard for Cold-Formed Steel Framing - Floor and Roof System Design.
3.	AISI S211 - North American Standard for Cold-Formed Steel Framing - Wall Stud Design.
4.	AISI S212 - North American Standard for Cold-Formed Steel Framing - Header Design.
5.	AISI S213 - North American Standard for Cold-Formed Steel Framing - Lateral Design.
B.	American Society of Civil Engineers (ASCE):
1.	ASCE 7 - Minimum Design Loads for Buildings and Other Structures.
C.	American Welding Society (AWS):
1.	AWS D1.3/D1.3M - Structural Welding Code - Sheet Steel.
D.	ASTM International (ASTM):
1.	A653/A653M - Standard Specification for Steel Sheet, Zinc-Coated (Galvanized) or Zinc-Iron Alloy Coated (Galvannealed) by the Hot-Dip Process..
2.	A780 - Standard Practice for Repair of Damaged and Uncoated Areas of Hot-Dip Galvanized Coatings.
3.	A1003/A1003M - Standard Specification for Steel Sheet, Carbon, Metallic- and Nonmetallic-Coated for Cold-Formed Framing Members.
4.	C955 - Standard Specification for Load-Bearing (Transverse and Axial) Steel Studs, Runners (Tracks), and Bracing or Bridging for Screw Application of Gypsum Board and Metal Plaster Bases.
5.	C1007 - Standard Specification for Installation of Load Bearing (Transverse and Axial) Steel Studs and Related Accessories.
6.	C1513 - Standard Specification for Steel Tapping Screws for Cold-Formed Steel Framing Connections.
E.	Steel Stud Manufacturer's Association (SSMA):
1.	Member Directory.
F.	Society for Protective Coatings (SSPC):
1.	Painting Manual.
1.4	SUBMITTALS
1.5	Include the following for submission of shop drawings, product data, and samples for the Architect's review.
A.	Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.	Product Data:
1.	Product Data: Framing components, sizes, materials, finishes, and accessories.
2.	Manufacturer's data sheets on each product to be used.
3.	Preparation instructions and recommendations.
4.	Storage and handling requirements and recommendations.
5.	Typical installation methods.
C.	Verification Samples: Two representative units of each type, size, pattern and color.
D.	Shop Drawings: Framing layout, components, connections, fastenings, and pertinent details.
E.	Quality Control Submittals:
1.	Certificates of Compliance: Certificate from Professional Structural Engineer responsible for system design that system was designed in accordance with Contract Document requirements, applicable Building Code, and generally accepted engineering practices.
2.	Welder Certifications: As required by AWS D1.3/D1.3M.
F.	Sustainable Design Submittals:
1.	Recycled Content.
2.	Regional Materials.
1.6	QUALITY ASSURANCE
A.	Manufacturer Qualifications: Current member of SSMA.
B.	Installer Qualifications: Minimum ____ years documented experience in work of this Section.
C.	Welder Qualifications: AWS D1.3/D1.3M.
D.	Source Limitations: Provide each type of product from a single manufacturing source to ensure uniformity.
E.	Mock-Up: Construct a mock-up with actual materials in sufficient time for Architect's review and to not delay construction progress. Locate mock-up as acceptable to Architect and provide temporary foundations and support.
1.	Intent of mock-up is to demonstrate quality of workmanship and visual appearance.
2.	If mock-up is not acceptable, rebuild mock-up until satisfactory results are achieved.
3.	Retain mock-up during construction as a standard for comparison with completed work. 
4.	Do not alter or remove mock-up until work is completed or removal is authorized.
1.7	PRE-INSTALLATION CONFERENCE
A.	Convene a conference approximately two weeks before scheduled commencement of the Work. Attendees shall include Architect, Contractor and trades involved. Agenda shall include schedule, responsibilities, critical path items and approvals.
1.8	DELIVERY, STORAGE, AND HANDLING
A.	Store and handle in strict compliance with manufacturer's written instructions and recommendations.
B.	Protect from damage due to weather, excessive temperature, and construction operations.
1.9	PROJECT CONDITIONS
A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.10	WARRANTY
A.	Manufacturer's standard limited warranty unless indicated otherwise.
PART 2    PRODUCTS
2.1	MANUFACTURERS
A.	Acceptable Manufacturers Association: The Steel Stud Manufacturer's Association, who's members cover all US Territories. The SSMA's headquarters is located at: 201 N. Maple Grove Rd. Suite 100; Boise, ID 83704; Phone: 208-229-7660; Email: info@ssma.com; Web: www.ssma.com.
B.	Acceptable Association Manufacturers:
1.	Consolidated Fabricators Corporation. (www.confabbpd.com )
2.	Custom Stud, Inc. (www.customstud.com )
3.	Frametek Steel Products. (www.frameteksteel.com )
4.	Olmar Supply Inc. (www.olmarsupply.com )
5.	SCAFCO Corporation. (www.scafco.com )
6.	Steel Construction Systems. (www.steelconsystems.com )
7.	United Metal Products, Inc. (www.unitedmetalproducts.info )
8.	Novus Advanced Manufacturing  (https://novussteel.us)
C.	Substitutions: Not permitted.
D.	Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
2.2	PERFORMANCE REQUIREMENTS
A.	Calculate structural properties of framing members in accordance with AISI Specifications; AISI S210, AISI S211, AISI S212, and AISI S213.
B.	Design framing under direct supervision of a Professional Structural Engineer with experience in the work of this Section and licensed in State in which Project is located.
1.	Professional Structural Engineer: 2 years documented experience in work of this Section.
2.	Professional Structural Engineer: ____ years documented experience in work of this Section.
C.	Design exterior wall stud system and/or roof trusses to withstand:
1.	Live and dead loads in accordance with Building Code.
2.	Wind pressure loads in accordance with Building Code.
3.	Wind pressure loads in accordance with ASCE 7.
4.	Wind pressure loads in accordance with ____.
5.	Movement Due to Temperature Variances:
a.	Ambient temperature range of 120 degrees F (49 degrees C).
b.	Ambient temperature range of ____ degrees F (____ degrees C).
c.	Surface temperature range of 160 degrees F (71 degrees C).
d.	Surface temperature range of ____ degrees F (____ degrees C).
6.	Maximum Deflection Under Loading: L/240 without sheathing materials.
7.	Maximum Deflection Under Loading: L/360 without sheathing materials.
8.	Maximum Deflection Under Loading: L/600 without sheathing materials.
9.	Maximum Deflection Under Loading: L/720 without sheathing materials.
10.	Maximum Deflection Under Loading: ____ without sheathing materials.
11.	Minimum Vertical Deflection of Structure: 1/2 inch (13 mm).
12.	Minimum Vertical Deflection of Structure: ____ inch (____ mm).
D.	Design joist system to withstand:
1.	Live and dead loads in accordance with Building Code.
2.	Maximum Deflection Under Loading: L/120 without decking materials.
3.	Maximum Deflection Under Loading: L/240 without decking materials.
4.	Maximum Deflection Under Loading: L/360 without decking materials.
5.	Maximum Deflection Under Loading: L/480 without decking materials.
6.	Maximum Deflection Under Loading: ____ without decking materials.
E.	Design system to accommodate construction tolerances, deflection of building structural members, and clearances at openings.
2.3	MATERIALS
A.	Framing Materials: 
1.	ASTM A653/A653M or A1003/A1003M.
a.	Galvanized Sheet Steel: G60 coating class.
b.	Galvanized Sheet Steel: G90 coating class.
c.	Galvanized Sheet Steel: ____ coating class.
2.	Recycled Content: Minimum ____ percent.
a.	Minimum ____ percent classified as post-consumer.
3.	Minimum sheet steel Thickness: 0.033 inch (0.84 mm)
a.	Minimum sheet steel Thickness: 0.043 inch (1.09 mm)
b.	Minimum sheet steel Thickness: 0.054 inch (1.37 mm)
c.	Minimum sheet steel Thickness: 0.068 inch (1.72 mm)
d.	Minimum sheet steel Thickness: 0.097 inch (2.45 mm)
e.	Minimum sheet steel Thickness: ____ inch (____ mm).
4.	Fabricate components to ASTM C955.
5.	Studs: SSMA stud profile, C-shaped, punched for utility access.
6.	Joists: SSMA stud profile, C-shaped, punched for utility access.
7.	Studs and Joists: SSMA stud profile, C-shaped, punched for utility access.
8.	Tracks: 
a.	SSMA stud track profile, C-shaped, same gage and depth as studs, unpunched.
b.	Top Track: Deflection type, deep leg track with slotted screw holes.
1)	Allowable overhead structure movement without framing damage: 
a)	Plus or minus 1/2 inch (13 mm).
b)	Plus or minus ____ inch (____ mm).
c.	Top and Bottom Track: 1-1/4 inch (32 mm) high legs.
d.	Top and Bottom Track: ____ inch (____ mm) high legs.
e.	Bottom Track: 1-1/4 inch (32 mm) high legs.
f.	Bottom Track: ____ inch (____ mm) high legs.
g.	Rim Track: Provide closure for ends of joists.
2.4	ACCESSORIES
A.	Bracing, Furring, Bridging and Web Stiffeners: Formed sheet steel, thickness determined by performance requirements specified.
B.	Plates, Gussets, Clips: Formed sheet steel, thickness determined by performance requirements specified.
C.	Fasteners: ASTM C1513; self-drilling, self-tapping screws.
D.	Touch Up Paint: SSPC Paint 20, Type I or II.
E.	Welding Electrodes: AWS D1.3/D1.3M; type required for materials being welded.
2.5	FABRICATION
A.	Prefabrication of Framing Components:
1.	Using templates.
B.	Field Fabrication: Prohibited except for minor alterations to accommodate site conditions.
C.	Cut members square and with tight fit to adjacent framing.
D.	Component Assembly Methods:
1.	Screw connection.
2.	Welding. Welding to conform to AWS D1.3/D1.3M.
3.	Clinching.
E.	Fabricate straight, level, and true, without warp or rack.
F.	Fabrication Tolerances: In accordance with ASTM C955.
PART 3    EXECUTION
3.1	INSTALLATION - GENERAL
A.	Install framing components in accordance with ASTM C1007, manufacturer's instructions, and approved Shop Drawings.
B.	Welding: In accordance with AWS D1.3/D1.3M.
C.	Make provisions for erection stresses. Provide temporary alignment and bracing.
3.2	INSTALLATION - AXIALLY LOADED STUD FRAMING
A.	Place top and bottom tracks in straight lines with ends butted.
1.	Fasten tracks at maximum 12 inches (305 mm) on center.
2.	Fasten tracks at maximum ____ inches on center.
3.	Fasten tracks as indicated on the Drawings.
B.	Stud Spacing: As indicated on the Drawings
1.	Space studs at 2 inches (51 mm) from abutting walls and each side of openings.
2.	Space studs at ____ inches from abutting walls and each side of openings.
C.	Connect studs to top and bottom tracks.
D.	Construct corners using minimum of three studs.
E.	Do not splice studs.
F.	Erect, brace, and reinforce stud framing to develop strength to achieve design requirements.
G.	Install headers above openings and intermediate studs above and below openings to align with wall stud spacing.
H.	Install framing between studs for attachment of mechanical and electrical items, and to prevent stud rotation.
I.	Diagonally brace walls at location indicated for shear construction.
3.3	INSTALLATION - NON-AXIALLY LOADED STUD FRAMING
A.	Place top and bottom tracks in straight lines with ends butted.
1.	Fasten tracks as indicated on drawings.
2.	Fasten tracks at maximum 12 inches (305 mm) on center.
3.	Fasten tracks at maximum ____ inches (____ mm) on center.
B.	Place Studs at Spacing Indicated:
1.	Place studs 2 inches (51 mm) from abutting walls and at each side of openings.
2.	Place studs ____ inches (____ mm) from abutting walls and at each side of openings.
C.	Install deflection compensating top track at framing extending to underside of structure.
D.	Connect studs to top and bottom tracks.
E.	Construct corners using minimum of three studs.
F.	Do not splice studs.
G.	Erect, brace, and reinforce stud framing to develop strength to achieve design requirements.
H.	Install headers above openings and intermediate studs above and below openings to align with wall stud spacing.
I.	Install framing between studs for attachment of mechanical and electrical items, and to prevent stud rotation.
J.	Laterally brace walls at locations indicated.
3.4	INSTALLATION - JOISTS
A.	Place joists at spacings indicated on the Drawings.
1.	Place 2 inches (51 mm) from abutting walls.
2.	Place ____ inches (____) from abutting walls.
3.	Connect members to supports using fastener method.
B.	Set members parallel and level; install lateral bracing and bridging where indicated.
C.	Locate joists directly over bearing studs or provide load distribution member.
D.	Provide additional joists under parallel partitions when partition length exceeds one-half of joist span and around openings that interrupt one or more joists.
E.	Do not splice joists.
F.	Provide web stiffeners at reaction points and points of concentrated loads.
G.	Provide end blocking where joist ends are not otherwise restrained from rotation.
3.5	INSTALLATION - TRUSSES
A.	Place trusses at spacings indicated.
B.	Make provisions for erection stresses. Provide temporary alignment and bracing.
C.	Set trusses parallel and level; install lateral bracing and bridging as required.
3.6	INSTALLATION TOLERANCES
A.	In accordance with ASTM C1007.
3.7	FIELD QUALITY CONTROL
A.	Testing and Inspection Services: Inspect and test shop and field welds in accordance with AWS D1.3/D1.3M.
3.8	ADJUSTING
A.	Clean and touch up galvanized coatings at welded and abraded surfaces in accordance with:
1.	ASTM A780, Annex A1. Repair Using Zinc-Based Alloys requires heating the surface to 600 degrees F and using repair sticks that melt on contact.
2.	ASTM A780, Annex A2. Repair Using Paints Containing Zinc Dust.
3.	ASTM A780, Annex A3. Repair Using Sprayed Zinc aka. Metallizing, requires blast cleaning of affected areas and special application equipment.

END OF SECTION