Roof Walkway Spec.docx

Specification for Roof Edge Protection Walkway and Guardrail System

PART 1 GENERAL

1.1 SUMMARY

Provide and install freestanding Roof Edge Protection System, including bases, walkway sections, pipe railings, uprights, fittings, and delivery to site.

1.2 REFERENCES

A. American National Standards Institute (ANSI) - A21.l Safety Requirements for Floor and Wall Openings, Railings and Toe Boards.

B. American National Standards Institute (ANSI) - A58.l Minimum Design Loads in Buildings and Other Structures.

C. American National Standards Institute (ANSI) - Al 17.1 Accessible and Usable Buildings and Facilities.

D. American National Standards Institute (ANSI) – Z359 Fall Protection Code E. American Society of Testing and Materials (ASTM) A47 - Standard Specification for Ferrite Malleable Iron Castings.

F. American Society of Testing and Materials (ASTM) A53 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.

G. American Society of Testing and Materials (ASTM) A153 - Standard Specification for Zinc Coating (Hot-Dip) on Iron and Steel Hardware.

H. American Society of Testing and Materials (ASTM) A500 - Standard Specification for cold-formed welded and seamless carbon steel structural tubing.

I. Occupational Safety & Health Administration (OSHA): 1910.23 - Guarding Floor and Wall Openings and Holes.

1.3 SUBMITTALS

A. Manufacturer's data sheets on each product to be used, including:

1. Preparation instructions and recommendations.

2. Shop Drawings: Indicate profiles, sizes, connections, size and type of fasteners and accessories.

3. Field Measurements: Verify field measurements prior to assembly and/or ordering.

4. Installation Instruction.

B. Shop Drawings: Drawings showing fabrication and installation of handrails and guardrails including plans, elevations, sections, details of components, anchor details, and attachment to adjoining units of work.

1.4 QUALITY ASSURANCE

A. Railings Structural Requirements:

1. Handrail, wall rail and guardrail assemblies and attachments shall withstand a minimum concentrated load of 200 pounds applied in any direction on the top rail.

2. Infill area of guardrail system capable of withstanding a horizontal concentrated load of 200 pounds applied to one square foot at any point in the system. Load not to act concurrently with loads on top rail of system in determining stress on guardrail.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Materials to be delivered to the job site in good condition and adequately protected against damage as handrails are a finished product.

B. Store products in manufacturer's unopened packaging until ready for installation.

1.6 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.

B. Field Measurements: Where handrails and railings are indicated to fit to other construction, check actual dimensions of other construction by accurate field measurements before fabrication; show recorded measurements on final shop drawings.

C. Contractor is responsible for crane lift service to deliver materials to rooftop work areas.

D. Contractor is responsible for procuring all necessary permits for traffic control and lane closures which may be required during crane lift as well as providing all necessary barriers and personnel for vehicular and pedestrian traffic control during crane lifting operations.

PART 2 PRODUCTS

2.1 MANUFACTURERS

A. Kee Safety Inc.

B. Substitutions: Owner approved substitutions are acceptable

2.2 SYSTEMS

Description: Modular walkway system to provide anti-slip, level surface for demarcated route on roof, uniformly distributes pedestrian load; designed for roof types including metal profile standing seam, and membrane. Walkway system to include guardrails on both sides in compliance with OSHA 1920.29 Provide components including but not limited to clips, brackets, walkway modules, railings, and accessories with appropriate fasteners as indicated or required to match design indicated on plans and to provide complete installation.

Compliance:

EN 516, Class 1-C.

Fire rated to class HB of UL 94 (harmonized with ISO 9772).

Slip Resistance:

OSHA Standard 29 CFR 1910.22 British Standard BS 4592.

Bearer Bars: Aluminum.

Treads: Fiberglass reinforced nylon; open tread design to allow water drainage** NOTE TO SPECIFIER ** Delete options for system configuration not required.

System Configuration: Free standing configuration held in place with 100 percent recycled PVC counterbalances, does not penetrate the roof surface.

** NOTE TO SPECIFIER ** Delete option for modules not required.

2.4 FABRICATION

A. Fit and shop assemble components in largest practical sizes for delivery to site.

B. Upright tops shall be plugged with weather and light resistant material.

C. Assemble components with joints tightly fitted and secured. Accurately form components to suit installation.

PART 3 EXECUTION

3.1 PREPARATION

A. Prepare surfaces using the methods recommended by the manufacturer for achieving the best result.

3.2 INSTALLATION

A. Install in accordance with manufacturer's instructions.

B. Fit exposed connections accurately together to form tight joints. For all connections with fittings, each set screw is to be tightened to 29 foot pounds of torque.

C. Perform cutting, and fitting required for installation of handrails. Set handrails and accurately in location, alignment, and elevation, measured from established lines and levels.

3.3 PROTECTION

A. Protect installed products until completion of project.

B. Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION