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	SECTION 05522
	TEMPERED GLASS RAILING ASSEMBLIES
	** NOTE TO SPECIFIER ** Vitro Architectural Products™ Envision Glass Systems tempered glass handrail assemblies. This section is based on products manufactured by Vitro Architectural Products™, which has locations at the following address: 965 Ridge Lake Blvd. Suite 300 Memphis, TN 38120 Toll Free: 800-238-6057 Email: sales@vitroamerica.com . Website: www.vitroamerica.com . Vitro Architectural Products™ offers a variety of architectural building products, including tempered glass handrail assemblies, metal-framed clad entrances, and all-glass entrances.
	PART 1	GENERAL
	1.1	SECTION INCLUDES
		A.	Tempered Glass Railing Assemblies.
	1.2	RELATED SECTIONS
	** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
		A.	Section 05500 - Metal Fabrications.
	1.3	REFERENCES
	** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
		A.	ASTM A 666 - Standard Specification for Austenitic Stainless Steel Sheet, Strip, Plate, and Flat Bar.
		B.	ASTM B 221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes.
		C.	ASTM B 221M - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes (Metric).
		D.	ASTM B 455 - Standard Specification for Copper-Zinc-Lead Alloy (Leaded-Brass) Extruded Shapes.
		E.	ASTM C 595 - Standard Specification for Blended Hydraulic Cements.
		F.	ASTM C 920 - Standard Specification for Elastomeric Joint Sealants.
		G.	ASTM C 1036 - Standard Specification for Flat Glass.
		H.	ASTM C 1048 - Standard Specification for Heat Treated Flat Glass-Kind HS, Kind FT Coated and Uncoated Glass.
		I.	NAAMM Metal Finishes Manual; National Association of Architectural Metal Manufacturers.
	** NOTE TO SPECIFIER ** Delete the following Article if specifying handrail base CH2006 or CH2007 in PART 2 of this section. See Specifier's Note preceding these products.
	1.4	SYSTEM DESCRIPTION
		A.	Performance Requirements for Handrail Assembly:
			1.	Support distributed load of 50 pounds per linear foot (8,756 N/m), applied in any direction.
			2.	Support concentrated horizontal load of 200 pounds (90.6 kg), uniformly distributed over 1 square foot (0.092 sq m) of area, applied at any point in system.
			3.	Distributed loads and concentrated loads not to be applied simultaneously.
	1.5	SUBMITTALS
		A.	Submit under provisions of Section 01300.
		B.	[ Product Data ]: Manufacturer's descriptive literature for railing assemblies; identify each component.
		C.	Shop Drawings: Dimensioned drawings of railing assemblies indicating the following:
			1.	Elevations; include joint locations, transitions, and terminations.
			2.	Construction details; include fabrication details of joints, transitions and terminations.
			3.	Anchoring details; indicate construction activities and materials required that are not provided by railing assemblies installer.
	** NOTE TO SPECIFIER ** Delete the following paragraph if specifying custom colors or finishes.
		D.	Selection Samples: Two sets of color chips representing manufacturer's full range of available metals and finishes.
		E.	Verification Samples: Two samples each, minimum size 12 inches (304 mm) long, of railing cap and base, representing actual metal and finish of products to be installed.
		F.	Quality Assurance Submittals:
	** NOTE TO SPECIFIER ** Delete the following sub-paragraph if specifying handrail base CH2006 or CH2007 in PART 2 of this section.
			1.	Design data: Design calculations, bearing seal and signature of structural engineer licensed to practice in the State in which the project is located, documenting compliance of handrail assemblies to performance requirements specified in SYSTEM DESCRIPTION Article of PART 1 of this section.
			2.	Certificates: Contractor's certification that installer of railing assemblies meets specified qualifications.
	1.6	QUALITY ASSURANCE
		A.	Installer Qualifications: Minimum three (3) years installing railing assemblies similar to that specified in this section.
	1.7	DELIVERY, STORAGE, AND HANDLING
		A.	Store products of this section in manufacturer's unopened packaging until installation.
	1.8	PROJECT CONDITIONS
		A.	Field Measurements: When project conditions permit, take field measurements of areas where handrail assemblies will be located; note discrepancies between drawings and actual dimensions on submitted shop drawings.
	1.9	SCHEDULING
		A.	Ensure that sill angles are correctly fabricated before placement, and are correctly placed and anchored in time for installation of railing assemblies in accordance with construction progress schedule.
	PART 2	PRODUCTS
	2.1	MANUFACTURERS
		A.	Acceptable Manufacturer: Vitro Architectural Products™, which is located at: 965 Ridge Lake Blvd. Suite 300 ; Memphis, TN 38120; Toll Free Tel: 800-238-6057; Email: request info; Web: www.vitroamerica.com
	** NOTE TO SPECIFIER ** Delete one of the two following paragraphs; coordinate with Division 1 requirements.
		B.	Requests for substitution will be considered in accordance with provisions of Section 01600.
		C.	Substitutions: Not permitted.
	2.2	MATERIALS
		A.	Aluminum Components: Conforming to ASTM B 221/ASTM B 221M, Alloy 6063, Temper T5.
		B.	Stainless Steel Components: Conforming to ASTM A 666, Type 304.
		C.	Brass Components: Conforming to ASTM B 455, UNS C38500, Architectural Bronze.
		D.	Expansion Cement: Hydraulic, conforming to ASTM C 595, factory-prepared with accelerator; product specified in shop drawings.
	** NOTE TO SPECIFIER ** Insert sealant color requirement in the following paragraph.
		E.	Sealant: One-part silicone sealant, conforming to ASTM C 920, ____________ color; product specified in shop drawings.
		F.	Adhesive: Product specified in shop drawings.
	2.3	ENVISION GLASS SYSTEMS COMPONENTS
	** NOTE TO SPECIFIER ** Delete any of the following paragraphs specifying items not required for project.
		A.	Glazing: Float glass meeting requirements of ASTM C 1036, Type 1, Quality q3, fully tempered in accordance with ASTM C 1048, Kind FT, and as follows:
	** NOTE TO SPECIFIER ** Retain one of the following two sub-paragraphs to specify glass thickness; tinted glass is not available in 3/4 inch thickness.
			1.	Thickness: 1/2 inch (12 mm).
			2.	Thickness: 3/4 inch (19 mm).
	** NOTE TO SPECIFIER ** Retain one of the following three sub-paragraphs to specify glazing color.
			3.	Color: Clear, Class 1.
			4.	Color: Bronze tint, Class 2, Style B.
			5.	Color: Grey tint, Class 2, Style B.
			6.	Color: Green tint, Class 2, Style B.
			7.	Color: Blue tint, Class 2, Style B.
			8.	Color: Acid etched - Appearance as Specified by the Architect in the Contract Drawings and Finish Schedule.
			9.	Polish edges that will be sight-exposed in finished Work to bright flat polish.
			10.	Temper glass materials horizontally; visible tong marks or tong mark distortions are not permitted.
			11.	Setting Blocks: Types and sizes indicated in shop drawings.
		B.	Protective Inserts: Types indicated in shop drawings.
		C.	Internal Handrail Cap Connector Sleeves: Metal tube, material compatible with handrail cap material.
		D.	Handrail Base:
	** NOTE TO SPECIFIER ** Retain one of the following four sub-paragraphs to specify base profile.
			1.	Profile: CH 2000; 2-7/8 inches (73 mm) wide by 3-3/8 inches (85.7 mm) high rectangular cross-section.
			2.	Profile: CH 2001; 2-1/2 inches (63.5 mm) wide by 4-1/8 inches (104.7 mm) high rectangular cross-section.
			3.	Profile: CH 2002; 2-1/4 inches (57 mm) wide by 3-1/2 inches (88.9 mm) high rectangular cross-section.
			4.	Profile: CH 2006; 2-7/16 inches (562 mm) wide by 3 inches (76 mm) high rectangular cross-section. Edge flange overhangs floor edge by 2 inches (51mm).
	** NOTE TO SPECIFIER ** The following two bases may not allow handrail assembly to meet specified performance requirements unless special design considerations are addressed- consult manufacturer for additional information; refer to SYSTEM DESCRIPTION Article of PART 1 of this section. seq level3 arabic3. Profile: CH 2006; 2-7/16 inches (64 mm) wide by 5 inches (127 mm) high rectangular cross-section¸ with kerf for applied surface materials.
			5.	Profile: CH 2007; 4 inches (101.6 mm) wide by 3 inches (76 mm) high inverted tee cross-section, with removable covers for access to concealed fasteners.
	** NOTE TO SPECIFIER ** Insert material and finish requirements in the following two sub-paragraphs. Handrail bases are available in the following materials and finishes: Clear¸ bronze anodized¸ or black anodized aluminum.Satin-finish or polished-finish stainless steel.Satin-finish or polished-finish brass cladding.US10B oxidized finish brass cladding. Painted finishes are also available; consult manufacturer to obtain information to specify these correctly.
			6.	Material: ________________
			7.	Finish: ________________
	** NOTE TO SPECIFIER ** Delete the above sub-paragraph and retain the following if specifying finish in accordance with NAAMM Metal Finishes Manual; delete if not required.
			8.	Finish: NAAMM designation ________________.
		E.	Handrail Cap:
	** NOTE TO SPECIFIER ** Insert handrail profile diameter in the following sub-paragraph; aluminum caps are available in diameters from 1-1/2 inches to 3-1/2 inches¸ stainless steel and brass caps are available in diameters from 1-1/2 inches to 4 inches. ** NOTE TO SPECIFIER ** If specifying hardwood rail cap¸ consult manufacturer to obtain information to specify profile and diameter correctly.
			1.	Profile: Round; __ inch (__ mm) diameter.
	** NOTE TO SPECIFIER ** Insert material and finish requirements in the following two sub-paragraphs. ** NOTE TO SPECIFIER ** Handrail caps are available in the following materials and finishes: Clear¸ bronze anodized¸ or black anodized aluminum.Satin-finish or polished-finish stainless steel.Satin-finish or polished-finish brass.US10B oxidized finish brass. ** NOTE TO SPECIFIER ** Selected hardwood caps and painted finishes are also available; consult manufacturer to obtain information to specify these correctly.
			2.	Material: ________________.
			3.	Finish: ________________.
	** NOTE TO SPECIFIER ** Delete the above sub-paragraph and retain the following if specifying finish in accordance with NAAMM Metal Finishes Manual; delete if not required.
			4.	Finish: NAAMM designation ________________.
	** NOTE TO SPECIFIER ** Edit the following paragraph according to project requirements; delete if not required.
		F.	Handrail Brackets:
			1.	Material: Aluminum.
			2.	Material: Stainless steel.
			3.	Material: Bronze.
			4.	Fabrication: Extruded.
			5.	Fabrication: Machined.
			6.	Fabrication: Cast.
			7.	Finish: Match handrail cap finish.
		G.	Shoe Molding:
			1.	Material: Extruded aluminum.
	** NOTE TO SPECIFIER ** Consult manufacturer's product literature to specify shoe molding profile; insert identifying number.
			2.	Profile: ____________.
	** NOTE TO SPECIFIER ** Retain one of the following three sub-paragraphs to specify shoe molding finish.
			3.	Finish: Match handrail base finish.
			4.	Finish: ________________.
	** NOTE TO SPECIFIER ** Delete the above two sub-paragraphs and retain the following if specifying finish in accordance with NAAMM Metal Finishes Manual; delete if not required.
			5.	Finish: NAAMM designation ________________.
		H.	Fasteners: Types and sizes indicated in shop drawings.
	** NOTE TO SPECIFIER ** The following paragraph is not intended to remain in this section; move to PART 2 of Section
	PART 3	.
		A.	Sill Angles for Tempered Glass Railing Assemblies: Steel angle profiles conforming to ASTM A 36, with anchoring devices, sizes indicated in shop drawings of Section
		B.	.
	3.1	FABRICATION
		A.	Fabricate handrail assembly components to lengths and configurations complying with shop drawings.
		B.	Machine joint edges smooth and plane to produce hairline seams when site-assembled; supply concealed sleeve connectors for joints.
		C.	Isolate dissimilar metals to prevent electrolytic action by applying primer to concealed surfaces of metal components.
	PART 4	EXECUTION
	4.1	EXAMINATION
		A.	Verify that sill angles are correctly placed.
		B.	Installer's Examination:
			1.	Have installer of this section examine conditions under which construction activities of this section are to be performed, then submit written notification if such conditions are unacceptable.
			2.	Transmit two copies of installer's report to Architect within 24 hours of receipt.
			3.	Beginning construction activities of this section before unacceptable conditions have been corrected is prohibited.
			4.	Beginning construction activities of this section indicates installer's acceptance of conditions.
	4.2	INSTALLATION
	** NOTE TO SPECIFIER ** Delete references to related construction activities of other sections that do not apply to project; add others as applicable to project. Coordinate with RELATED SECTIONS Article of PART 1 of this section.
		A.	Installation of sill angles is specified in Section 05500.
		B.	Install railing assemblies in accordance with shop drawings.
		C.	Site Tolerances:
			1.	Variation from level, horizontal components and sight lines: 1/8 inch in 10 feet (3 mm in 3 m), non-cumulative.
			2.	Variation from plumb, vertical components and sight lines: 1/8 inch in 10 feet (3 mm in 3 m), non-cumulative.
			3.	Variation from plane, installed assembly: Maximum 1/16 inch (1.5 mm)
	4.3	PROTECTION
		A.	Protect finished installation from damage by subsequent construction activities until Substantial Completion.
		B.	Repair components damaged by subsequent construction activities in accordance with manufacturer's recommendations; replace damaged components that cannot be repaired to Architect's acceptance.
	END OF SECTION