CSI Format Specification for
Ferric railings
General l Product l Execution
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| Part 1 - General |
| 1.1 |
Section Include
Product
description for a Pre-engineered ornamental railing system.
Related Documents
All drawings, general and supplementary conditions including division one specifications apply to this section. |
| 1.2.0 |
Summary |
| 1.2.1 |
Product
Principle
items specified is this section are:
1. Stainless steel and stainless/wood combination handrails
2. Stainless steel guardrail components and fittings.
3.
Stainless steel or Tempered glass infill panels.
4.
Steel posts and fasteners with Powder Coated finishes. |
| 1.2.2 |
Work Included
Provide all materials, labor and equipment necessary to fabricate and completely install handrails, guardrails, and infill panels as shown on drawings or specified herein. |
| 1.3 |
Definitions
Terms and definitions from ASTM E985 and ISO/TC 59 for railing related items apply to this section. |
| 1.4 |
System Performance Requirements |
| 1.4.1 |
Railings shall meet or exceed the requirements of all applicable building codes. |
| 1.4.2 |
Railings shall have high strength steel and stainless steel in order to comply with 1.4.1 with adequate safety margin. |
| 1.4.3 |
All internal members shall be stainless steel,
aluminum, nylon or coated steel to eliminate the possibility of rust. |
| 1.4.4 |
Prevent galvanic action and other forms of corrosion by insulating metals and other materials from direct contact with incompatible materials. |
| 1.5 |
Submittals |
| 1.5.1 |
Shop drawings, showing fabrication and installation of handrails and railings including plans, elevations, sections, details of components and attachments to other units of work. |
| 1.5.2 |
Product data for steel / stainless steel / wood / nylon products to be supplied in the form of a Material Safety Data Sheet from manufacturer. |
| 1.5.3 |
Structural computations or test data / evaluations, material properties and other information needed to ensure satisfactory structural compliance to applicable building codes to be supplied by the manufacturer. |
| Initial Selection: |
| 1.5.4 |
6" long
handrail samples complete with supports to include either stainless
steel, powder coated steel or nylon rosette covers to display grade,
finish and or color. |
| Final Verification: |
| 1.5.5 |
Qualification data for authorized installers specified in "Quality Assurance" is to demonstrate their capabilities and experience. Include list of completed projects with project names and architect names. |
| 1.6 |
Quality Assurance |
| 1.6.1 |
Single Source Responsibility: Materials shall be supplied and installed by a single firm. |
| 1.6.2 |
The architect shall approve other qualified manufacturers no less than ten (10) days prior to close of bid. |
| 1.6.3 |
Execution tolerance plus/minus 5/64” (2 mm). |
| 1.7 |
Storage |
| 1.7.1 |
Store handrails and railing systems in clean, dry location, away from uncured concrete and masonry, protected against damage of any kind. |
| 1.7.2 |
Materials must be kept in original packing until installation. |
| 1.7.3 |
Materials to be stored at not lower than -40°C (-40°F) or higher than 100°C (212°F). |
| 1.8 |
Project Conditions |
| 1.8.1 |
All measurements for handrails and railings should be taken from construction site elements to which railings are to fasten. This information to be recorded on final shop drawings. |
| 1.8.2 |
Coordinate fabrication schedule with construction progress to avoid delay of work.
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| Part 2 - Product: |
| 2.1 |
Mechanically fastened Stainless steel railing system. |
| 2.1.1 |
Manufacturer shall be Handrail Design Inc. (HDI), a U.S. manufacturer of a custom pre-engineered, mechanically fastened guardrail and handrail system, in strict compliance with all technical requirements of the drawings and specifications. Miscellaneous metal fabricators/suppliers will not be acceptable. This standard is based on HDI Railing Systems, 3905 Continental Drive, Lancaster, PA 17512 (Tel. 717.285.4088 Fax. 717.285.5083). |
| 2.2 |
Materials: Guardrails and Handrail System |
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1. All rails and other tubular components shall be constructed using the following:
| a. |
Stainless steel grade UNS 1.4305, type 304 respectively; surface
to be 240 grain/grit finish; tubes 1-9/16" (40mm) by 5/64" (2
mm) |
| b. |
Nylon inserts to be nylon 6, ref polyamid type B3S manufactured by BASF. |
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2. All posts and other components shall be constructed using the following:
| a. |
Post
Steel to be type A36 - 2“ (50mm) by ¼“ (6mm). Hardware
attachment surface to be on inside of post formed from the post
bar. Attaching hardware to be fastened by vertically sliding
clamps. All steel to be powder coated to required color. |
| b. |
Surface and side mount fastening plates and clamps to be made
from steel type A36. All steel to be powder coated to required
color.
|
| c. |
Clamps, end block at top of post and handrail attachment all to
be Stainless steel grade UNS 1.4305, type 304. Surface to be
240 grain/grit finish to match handrail finish.
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| d. |
Salt water and chlorinated swimming pool environments require
stainless steel grade 316 and an exterior grade powder coating
formulation; Stainless steel surface to be 240 grain/grit
finish; component parts are dimensionally equivalent to those
items described in 2.2.2 (a), (b) and (c). |
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3. Fastening bolts to be plated and galvanized or stainless steel to match base clamping plate. |
| 2.3 |
Glass products, glazing and infill materials. |
| 2.3.1 |
Tempered glass: Provide fully tempered safety glass with polished edges and dubbed (rounded) corners complying with ASTM C1048. Kind FT (fully tempered), condition A (un-coated). Types 1 (transparent glass, flat), quality Q3 (glazing select), class, thickness and manufacturing process as indicated below. |
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Glass:
Clear glass: Class 1 clear
Tinted glass: Class 2 (tinted heat absorbing and light reducing), Manufacturers standard tint color indicated below.
a. Bronze
b. Gray
c. Custom pattern, etch or surface as specified herin.Allowable thickness 3/8" (8 mm) to 1/2" (13 mm) to be noted on final shop drawings.
Manufacturing process: Manufacture fully tempered glass by horizontal (roller hearth) process with roll wave distortion parallel with bottom edge of glass as installed.
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Stainless perforated metal panels
Stainless steel perforated metal infill panels with continuous frame are by HDI. Installed post centers are required complete with sketch, to allow panel fabrication by HDI. |
| 2.4 |
Fasteners
Anchors shall be fabricated from stainless steel materials with capability to sustain, without failure, load imposed within a safety factor of 4, as determined by testing per ASTM E488. |
| 2.5 |
Fabrication
| a. |
Fabricate railing system for compliance with structural requirements of applicable code. |
| b. |
Pre-assemble railings prior to shipping to greatest extent possible to minimize field splicing and assembly. Disassemble units only as necessary for shipping and handling limitations. Clearly mark units for re-assembly and for coordination with shop drawings. |
| c. |
Stainless steel tubing cuts shall be square, without burrs and where exposed, rounded to produce smooth rigid and hairline joints. |
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| Part 3 - Execution |
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Preparation
Provide information on fastening point locations for posts where necessary to relevant parties. |
| 3.1 |
Installation |
| 3.1.1 |
Installation shall be by Handrail Design Inc or a qualified, authorized representative of the manufacturer. |
| 3.1.2 |
Installation must be in accordance with standard or non-standard, yet applicable details (instructions) included on installation/shop drawings provided by Handrail Design Inc. |
| 3.1.3 |
Install components plumb and in-line, accurately fitted, free from distortion or defects and securely anchored to structure. |
| 3.1.4 |
Provide anchors, plates, angles, etc., necessary for connecting railings to structure. |
| 3.1.5 |
Any and all field welding shall be by a certified welder. |
| 3.1.6 |
Access must be made available for anchors that require through bolting either vertically or horizontally. |
| 3.2 |
Erection tolerances |
| 3.2.1 |
Maximum variation from plumb shall be 1/4". |
| 3.2.2 |
Maximum offset from true alignment for every 50-foot of railing shall be 1/4", non-accumulative. |
| 3.3 |
Protection after installation
Provide protective covering on all hand and guardrails if construction is not yet finished in the area. |
| 3.4 |
Maintenance and cleaning. |
| 3.4.1 |
Railings shall be cleaned, including infill panels, by contractor to the satisfaction of the owner. |
| 3.4.2 |
Wipe with moistened cloth only. Do not use cleaning agents with abrasive or acid/alkaline content. |
| 3.5 |
Correction of deficiencies
All deficiencies in work and/or items not meeting specified requirements shall be corrected in order to meet specification requirements at no additional cost to owner.
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