SECTION 05720 - ORNAMENTAL GLAZED RAILING SYSTEM
ALUMINUM HANDRAILS AND RAILINGS
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Aluminum Handrails.
B. Aluminum Railings.
1.2 RELATED SECTIONS
A. Section 05700 - Ornamental Metal: Adjacent or adjoining handrails and railings fabricated
from steel pipe and tube components.
B. Section 06400 - Architectural Woodwork: Wood handrails and railings.
1.3 REFERENCES
A. ASTM B 26/B26M - Standard Specification for Aluminum-Alloy Sand Castings; 2005.
B. ASTM B 209 - Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate; 2004.
C. ASTM B 210 - Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes;
2004.
D. ASTM B 221 - Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes; 2005.
E. ASTM B 247 - Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings; 2000.
F. ASTM B 429 - Standard Specification for Aluminum-Alloy Extruded Structural Pipe and Tube; 2002.
G. ASTM C 1048 - Standard Specification for Heat-Treated Flat Glass--Kind HS, Kind FT Coated and Uncoated Glass; 1997.
H. ASTM C 1107 - Standard Specification for Packaged Dry, Hydraulic-Cement Grout (Non-shrink); 2002.
I. ASTM E 488 - Standard Test Methods for Strength of Anchors in Concrete and Masonry Elements; 1996.
J. AA 30, "Specifications for Aluminum Structures".
K. AISI SG-673, Part I, "Specification for the Design of Cold-Formed Steel Structural Members".
L. "Mechanical Properties" in AAMA Aluminum Curtain Wall Series No. 12, "Structural Properties of Glass".
1.4 PERFORMANCE REQUIREMENTS
A. General: Handrails and railings shall withstand structural loading as determined by allowable design working stresses of materials based on the following standards.
1. Aluminum: AA 30.
2. Cold-Formed Structural Steel: AISI SG-673, Part I.
3. Fully tempered glass in glass-supported handrails and railings requires a design with a safety factor of 3 applied to the applicable modulus of rupture listed in "Mechanical Properties" in AAMA Aluminum Curtain Wall Series No. 12, "Structural Properties of Glass".
B. Structural Performance: Provide handrails and railings capable of withstanding the following structural loads without exceeding allowable design working stress of materials for handrails, railings, anchors and connections:
1. Top Rail of Guards: Shall withstand the following loads:
a. Concentrated load of 200 lbf (0.89kN) applied at any point and in any direction.
b. Uniform load of 50 lbf-ft. (0.07kN-m) applied horizontally and concurrently with uniform load of 100 lbf-ft. (0.14kN-m) applied vertically downward.
c. Concentrated and uniform loads above need not be assumed to act concurrently.
2. Hand rails Not Serving As Top Rails: Shall withstanding the following loads:
a. Concentrated load of 200 lbf (0.89 kN) applied at any point and in any direction.
b. Uniform load of 50 lbf-ft. (0.07kN-m) applied in any direction
c. Concentrated and uniform loads above need not be assumed to act concurrently.
3. Guard Infill Area: Shall withstand the following loads:
a. Concentrated horizontal load of 200 lbf (0.89 kN) applied to 1 sq. ft. at any point in system, including panels, intermediate rails, balusters, or other elements composing infill area. Loads need not be assumed to act concurrently with loads on top rails in determining stress on guard.
C. Thermal Movements: Handrails and railings shall allow for movements resulting from 120 deg F (49 deg C) changes in ambient and 180 deg F (82 deg C) surface temperatures. Base engineering calculation on surface temperatures of materials due to both solar heat gain and nighttime-sky heat loss.
D. Corrosion Resistance: Separate incompatible materials to prevent galvanic corrosion.
1.5 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Manufacturer's data sheets on each product to be used, including:
1. Preparation instructions and recommendations.
2. Storage and handling requirements and recommendations.
C. Manufacturer's product lines of handrails and railings assembled from standard components.
1. Grout, anchoring cements and paint products.
D. Shop Drawings: Show fabrication and installation of handrails and railings. Include plans, sections, details and attachments to other Work.
E. Samples:
1. Color Selection: Submit manufacturer's color charts showing the full range of colors available for products with factory-applied color finishes.
2. Finish Selection: Provide sections of railing or flat sheet metal which depict available mechanical surface finishes.
3. Verification Samples: For each type of exposed finish required, prepared on components indicated below and of same thickness and metal indicated for the Work. If finishes involve normal color and texture variations, include sample sets showing the full range of variations expected.
F. Qualification Data: Installer shall submit documentation demonstrating capability and experience in performing installations of the same type and scope as specified by this section. Include lists of completed projects with project names and addresses, names and addresses of architects and owners, and other information specified.
1.6 QUALITY ASSURANCE
A. Manufacturer Qualifications: Single manufacturer with a minimum of ten (10) years experience manufacturing and fabricating Architectural aluminum building components shall provide all primary products specified in this section.
B. Installer Qualifications: Installer shall have a minimum of five (5) years experience installing systems of similar type and scope as those specified in this section.
C. Mock-Up: Provide assembled samples of railings, fabricated from full-size components, including top rail, post, handrail and infill. Show method of finishing members at intersections. Samples need not be full height.
1.7 DELIVERY, STORAGE, AND HANDLING
A. Store products in manufacturer's unopened packaging until ready for installation.
B. Store and dispose of hazardous materials, and materials contaminated by hazardous materials, in accordance with requirements of local authorities having jurisdiction.
1.8 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 absolute limits.
1.9 WARRANTY
A. At project closeout, provide to Owner or Owners Representative an executed copy of the manufacturer's standard limited warranty against manufacturing defect, outlining its terms, conditions, and exclusions from coverage.
1. Surface Finish Warranty: Five (5) year limited warranty.
2. Material Integrity Warranty: Five (5) Year.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Acceptable Manufacturer: Custom Components Company, which is located at: 13902 Lynmar Blvd. ; Tampa, FL 33626; Toll Free Tel: 800-516-9474; Fax: 813-855-3706; Email: request info; Web: www.usrailings.com
B. Substitutions: Not permitted.
C. Requests for substitutions will be considered in accordance with provisions of Section 01600.
2.2 APPLICATIONS / SCOPE OF WORK
A. Residential Railing.
B. Structural Glass Railing.
C. Fencing and Pool Surround.
D. Vehicle and Pedestrian Gate.
E. Glass Wall System.
2.3 METALS
A. General: Provide metal free from pitting, seam marks, roller marks, stains, discoloration, and other imperfections where exposed to view on finished units.
B. Aluminum: Alloy and temper recommended by aluminum producer and finisher for type of use and finish indicated, and with not less than strength and durability properties of alloy and temper designated below for each aluminum form required.
1. Extruded Bar and Tube: ASTM B 221 (ASTM B 221 M), alloy 6063-T5/T52.
2. Extruded Structural Pipe and Tube: ASTM B 429, alloy 6063-T832.
3. Drawn Seamless Tube: ASTM B210 (ASTM B 210M), alloy 6063-T832.
4. Plate and Sheet: ASTM B 209 (ASTM B 209M), alloy 6061-T6.
5. Die and Hand Forgings: ASTM B247 (ASTM B 247 M), alloy 6061-T6.
6. Castings: ASTM B 26/B 26M, alloy A356-T6.
C. Brackets, Flanges and Anchors: Extruded profile of same type of material and finish as supported rails, unless otherwise indicated.
1. Provide extruded profile brackets with predrilled hole for exposed bolt anchorage.
2. Provide brackets with interlocking pieces that conceal anchorage. Locate set screws on bottom of bracket.
2.4 GLASS PRODUCTS AND GLAZING MATERIALS
A. Glass: Fully tempered, uncoated, transparent flat glass meeting the requirements of ASTM C 1048, Type FT, Condition A, Type 1, Quality q3. Products shall comply with properties indicated for class, thickness, and manufacturing process that have been tested for surface and edge compression according to ASTM C 1048 and for impact strength according to 16 CFR, Part 1201 for Category II materials.
1. Clear Glass: Class 1 (clear).
2. Thickness: 1/4 inch (6mm) except where noted.
3. Manufacturing Process:
a. By vertical (tong-held) or horizontal (roller-hearth) process, at manufacturers option. Horizontal process shall be performed tongless. Glass shall be free of tong marks and other visual distortions.
4. Subject to compliance with requirements, provide glass permanently marked with certification label of Safety Glazing Certification Council or other agency acceptable to authorities having jurisdiction.
2.5 FASTENERS
A. Handrail and Railing Anchors: Select fasteners of stainless steel #type 304, grade and class required to produce connections suitable for anchoring handrails and railings to other types of construction indicated and capable of withstanding design loads.
B. Handrail and Railing Component Anchors: Use fasteners fabricated from same basic metal, unless otherwise indicated. Do not use metals that are corrosive or incompatible with materials joined.
1. Provide concealed fasteners for interconnecting railing components and for attaching them to other Work, unless exposed fasteners are unavoidable or are standard fastening method for handrail and railing indicated.
2. Provide hex-head tek screws for exposed fasteners, unless otherwise indicated.
C. Cast-in-Place and Post installed Anchors: Anchors of type indicated below, fabricated from corrosion-resistant materials with capability to sustain, without failure, a load equal to six times the load imposed when installed in unit masonry and equal to four items the load imposed when installed in concrete, as determined by testing per ASTM E 488 conducted by a qualified independent testing agency.
1. Cast-in-place anchors.
2. Chemical anchors.
3. Expansion anchors.
2.6 GROUT AND ANCHORING CEMENT
A. Non-shrink, Nonmetallic Grout: Premixed, factory-packaged, non-staining, non-corrosive, non-gaseous grout complying with ASTM C 1107. Provide grout specifically recommended by manufacturer for interior and exterior applications.
B. Interior Anchoring Cement: Factory-packaged, non-shrink, non-staining, hydraulic-controlled expansion cement formulation for mixing with water at project site to create pourable anchoring, patching and grouting compound. Use for interior applications only.
2.7 FABRICATION
A. Shop fabricate and assemble handrails and railings to the greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for transport to site. Clearly mark units for reassembly and coordinated installation.
B. Form changes in direction of railing members as shown on Contract Drawings.
C. Mechanical Connections: Fabricate handrails and railings by connecting members with railing manufacturer's standard concealed mechanical fasteners and fittings, unless otherwise indicated. Fabricate members and fittings to produce flush, smooth, rigid, hairline joints.
D. Brackets, Flanges, Fittings and Anchors: Provide manufacturer's standard wall brackets, flanges, miscellaneous fittings and anchors to connect handrail and railing members to other construction.
E. Fabricate railing system to comply with requirements indicated on approved shop drawings for design, dimensions, details, finish and member sizes, including wall thickness of hollow members, post spacings, and anchorage.
F. Assembly shall be in a neat workmanlike manner using MIG Welding Processes as required. All posts shall be structurally welded to top rail and lower horizontal members to assure fixed fastening for the life of the railing.
G. Corners shall be fitted by mitre and further welded as required to obtain maximum assurance of strength through the railing's useful life.
H. End connections required to fasten to the building structure require either a welded end rail sleeves or bracket.
I. Provide weep holes or other means to exit entrapped water from hollow sections of railing members exposed to exterior, condensation, or moisture from other sources.
J. Close exposed visible ends of top rails by use of flat cap welded to end.
K. Verify dimensions on site prior to shop fabrication.
L. Provide inserts and other anchorage devices to connect handrails and railings to concrete or masonry. Fabricate anchorage devices capable of withstanding loads imposed by handrails and railings. Coordinate anchorage devices with supporting structure.
M. Shear and punch metals cleanly and accurately. Remove burrs from exposed cut edges.
N. Cut, reinforce, drill and tap components as indicated on drawings to receive finish hardware, screws and similar items.
O. Close exposed ends of railing members with prefabricated end fittings.
P. Provide mounted handrails wall returns at wall ends unless otherwise indicated. Close ends of returns, unless clearance between end of railing and wall is 1/4 inch (6 mm) or less.
2.8 FINISHES
A. General
1. Comply with NAAMM's "Metal Finishes Manual for Architectural and Metal Products" for recommendations for applying and designating finishes.
2. Appearance of Finished Work:
a. Variations in appearance of abutting or adjacent units are acceptable if they are within one-half of the range of approved samples. Noticeable variations in the same unit are not acceptable.
b. Variations in appearance of other components are acceptable if they are within the range of approved samples and are assembled or installed to minimize contrast.
B. Aluminum Finish
1. Finish designations prefixed by AA comply with the system established by the Aluminum Association for designating aluminum finishes.
2. High-Performance Organic Coating Finish: AA-C12C42R1X
3. Chemical Finish: Cleaned with inhibited chemicals and acid non chromate-fluoride-phosphate conversion coated.
4. Powder Coating: Prepare, pre-treat, and apply coating to exposed metal surfaces to comply with manufacturer's written instructions.
a. Material: Tiger, Drylac, Series 39,Polyester Powder Coating, 3 mil. Average film thickness complying with AAMA 2604-98
b. Color and Gloss: Up to four (4) colors to be selected by Architect from manufacturer's standard and custom color and gloss ranges.
c. Color and Gloss: __________.
PART 3 EXECUTION
3.1 EXAMINATION
A. Examine substrates to receive anchors verifying that locations of concealed reinforcements have been clearly marked for installer. Locate reinforcements and mark locations if not already done.
B. PREPARATION
1. Coordinate drawings, instructions and directions for installation of railing system, anchors and miscellaneous items.
2.
Coordinate delivery of such items to project site
3.2 GENERAL INSTALLATION REQUIREMENTS
A. Fit exposed connections together to form tight, hairline joints.
B. Cutting, Fitting, and Placement: Set handrails and railings accurately in location, alignment and elevation measured from established lines and levels and free from rack.
1. Do not weld, cut or abrade coated or finished surfaces of railing components that are intended for field connection by mechanical or other means without further cutting or fitting.
2. Align rails so variations from level or parallel alignment do not exceed 1/4 inch in 12 feet (1.6 mm per m).
C. Corrosion Protection: Coat concealed surfaces of aluminum and copper alloys that will be in contact with grout, concrete, masonry, wood, or dissimilar metals, with a heavy coat of bituminous paint.
D. Adjust handrails and railings before anchoring to ensure alignment at abutting joint's space posts at interval indicated, but not less than required to achieve structural loads.
E. Fastening to In-Place Construction: Use anchorage devices and fasteners where necessary for securing handrails and railings and for properly transferring loads to in-place construction.
3.3 RAILINGS CONNECTIONS
A. Non-welded Connections: Use mechanical joints for permanently connecting railing components. Use wood blocks and padding to prevent damage to railing members and fittings.
3.4 INSTALLING GLASS PANELS
A. Glass, Handrails and Railings: Install assembly to comply with railing manufacturer's written instructions. Attach unitized panel assemblies to building structure, then insert and connect factory-fabricated and - assembled glass panels.
1. Erect glass handrails and railings under direct supervision of manufacturer's authorized technical personnel.
3.5 CLEANING
A. Touch-up Painting: Immediately after erection, clean bolted connections, and abraded areas of shop paint, and appoint exposed areas with same material.
3.6 PROTECTION
A. Protect finishes of handrails and railings from damage during construction period with temporary protective coverings approved by railing manufacturer. Remove protective coverings at the time of Substantial Completion.
3.7 CLEANING AND TOUCH-UP PAINTING
- As installation is completed, clean aluminum with plain water containing a mild detergent.
- Touch-up minor scratches with touch-up paint provided by manufacturer to recommended instructions.
