SECTION 05521

TEMPERED GLASS RAILING ASSEMBLIES

***** Morse Industries manufactures high quality aluminum, stainless steel, and brass components for tempered glass railing assemblies and metal handrails. Glass railings basically consist of a metal top rail and tempered glass panels. A glass railing is an attractive alternative to more obscure railings with numerous intermediate rails, vertical spindles, or wire mesh panels. Glass railings are custom fabricated to accommodate specific project designs and dimensions. Morse Industries provides metal components for two types of glass railing:

Glass baluster railings: Assembly consists of structural glass panels affixed into a base section and providing structural support for a metal top rail.

Glass in-fill railings: Assembly consists of vertical metal posts supporting a metal top rail and non-structural glass panels attached to posts and infilling the area between the posts.

This guide specification section can be used to specify both types of tempered glass railing assemblies. Metal handrails manufactured by Morse Industries can be attached to the glass panels of a glass railing or mounted on building walls. SECTION 05522 - METAL HANDRAILS can be used to specify handrails manufactured by Morse Industries.

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PART 1 - GENERAL

1.1 SUMMARY

A. Section includes:

***** Use the following paragraph if glass baluster railings are being specified. *****

1. Glass baluster type railings consisting of [aluminum] [stainless steel] [brass] rails, tempered glass panels set in aluminum base sections and providing structural support for top rail.

***** Use the following paragraph if in-fill glass railings are being specified. Only stainless steel and brass components are provided for in-fill glass railings. *****

2. Glass in-fill type railings consisting of [stainless steel] [brass] rails and vertical posts, tempered glass in-fill panels, and connectors for attaching glass panels to posts.

2 Anchors, fasteners, splice connectors, mitered corners, flush fittings, end caps, and other components required for a complete secure railing.

B. Related sections:

***** List other specification sections dealing with work directly related to this section such as the following. *****

1. Section 03300 - Cast-in-Place Concrete: Construction of floor slabs and concrete stairs and landings to receive tempered glass railing assemblies.

2. Section 05511 - Steel Stairs: Construction of steel stairs and landings to receive tempered glass railing assemblies.

3. Section 06100 - Rough Carpentry and Section 09260 - Gypsum Board Assemblies: Blocking in metal stud partitions for anchorage of railings.

***** Morse Industries provides all metal components for glass railing assemblies but does not provide the glass panels. Typically these are obtained locally by the installer for the glass railings. Glass railing panels may be specified in this section or in Section 08800 - Glazing along with glass used for other applications. If a tinted or reflective glass is being used such that the railings are compatible with other glass applications within the building, then it is preferable to specify railing glass in Section 08800 - Glazing. *****

4. Section 08800 - Glazing: [Supply of glass panels to be installed under this Section in railing assemblies.] [Provision of glass for applications other than railings.]

1.2 REFERENCES

**** List by number and full title reference standards referred to in remainder of specification section. Delete non-applicable references. *****

A. American Architectural Manufacturers Association (AAMA):

1. AAMA 606.1 - Voluntary Guide Specification and Inspection Methods for Integral Color Anodic Finishes for Architectural Aluminum.

2. AAMA 607.1 - Voluntary Guide Specification and Inspection Methods for Clear Anodic Finishes for Architectural Aluminum.

B. American Society for Testing and Materials (ASTM):

1. ASTM A269 - Seamless and Welded Austenitic Stainless Steel Tubing for General Service.

2. ASTM A1264 - Safety Requirements for Workplace Floor and Wall Openings, Stairs, and Railing Systems.

3. ASTM B221 - Aluminum‑Alloy Extruded Bar, Rod, Wire, Shape, and Tube.

4. ASTM B248 - Wrought Copper and Copper Alloy Plate, Sheet, Strip, and Rolled Bar.

5. ASTM C1048 - Heat Treated Flat Glass, Kind HAS, Kind FT, Coated and Uncoated.

6. ASTM E894 - Anchorage of Permanent Metal Railing Systems and Rails for Buildings.

7. ASTM E935 - Permanent Metal Railing Systems and Rails for Buildings.

C. ICBO UBC - Uniform Building Code published by International Conference of Building Officials.

D. CPSC 16 CFR 1201 - Consumer Product Safety Commission Safety Standard for Architectural Glazing Materials.

1.3 DESIGN REQUIREMENTS

A. Railing assemblies and attachments shall be designed, fabricated, and installed in accordance with ASTM A1264, ASTM E894, ASTM E935 to support:

1. 200 pounds concentrated loading applied at any point in any direction.

2. 50 pounds per linear foot uniform load applied horizontally to top of rail.

***** Include the following paragraph if glass baluster railings are being specified. *****

B. Railing assembly shall be glass baluster system consisting of structural glass panels affixed into base section and providing structural support for top metal rail attached to glass panels. Each top rail shall be supported by 3 glass balusters minimum.

***** Include the following paragraph if glass in-fill railings are being specified. *****

C. Railing assembly shall be system of metal posts anchored to floor and supporting top metal rails. Non-structural glass panels shall be attached to posts with metal connectors and infill space between posts.

D. Railing assemblies shall be designed to be prefabricated in modular components as required for shipping and to be assembled on site with concealed mechanical connections without welding.

E. Railings shall be designed and fabricated with required joints to accommodate expansion and contraction of metal components without causing undue stress, buckling, opening of joints, and distortion.

1.4 SUBMITTALS

A. Provide in accordance with Section 01330 - Submittal Procedures:

1. Product data for railing components and accessories.

2. Shop drawings showing railing plans, elevations, dimensions, and installation details.

3. Samples of manufacturer's finishes [for selection by Architect].

4. Installation and maintenance instructions.

1.5 QUALITY ASSURANCE

A. Comply with Consumer Product Safety Commission 16 CFR 1201 and other applicable safety requirements.

B. Conform to [ICBO UBC] [_____] [applicable code] for design and installation requirements for glass railing.

C. Each piece of safety glazing shall be permanently labeled with appropriate marking.

1.6 HANDLING

A. After fabrication, provide protective PVC film on handrails, posts, and other exposed to view components to be removed after installation.

B. Exercise care not to scratch, mark, dent, or bend metal components during delivery, storage, or installation.