NOTE ** This section covers manufactured stainless steel roof panels for on-roof machine-seaming. The section includes stainless steel and terne-coated stainless steel, without applied finishes.
NOTE ** Information in this section is provided by the Specialty Steel Industry of the United States (SSIUS) which is a source of technical data on stainless steel. SSIUS has the capabilities for providing seminars, technical publications and can help facilitate design assistance on the use of stainless steel products for architectural and engineering applications. For additional information, contact SSIUS at:
NOTE **
NOTE ** Specialty Steel Industry of the United States
NOTE ** 3050 K Street, NW
NOTE ** Washington, DC 20007
NOTE **
NOTE ** Tel: (202) 342-8630
NOTE ** Fax: (202) 342-8451
NOTE **
NOTE ** SECTION 07411 - STAINLESS STEEL ROOF PANELS, Copyright 1998, The Architect's Catalog, Inc.
NOTE ** Disclaimer: The Specialty Steel Industry of the United States (SSIUS) and the individual companies it represents have made every effort to ensure that the information presented in this specification is technically correct. However, neither the SSIUS nor its member companies warrants the accuracy of the information contained in this specification or its suitability for any general and specific use, the SSIUS assumes no liability or responsibility of any kind in connection with the use of this information. The reader is advised that the material contained herein should not be used or relied on for any specific or general applications without first securing competent advice.
PART 1 GENERAL
1.1 SECTION INCLUDES
NOTE ** Two types of panels are included in this section: Preformed panels (batten- and standing-seam) that are machine-seamed on the roof, and panels of other profiles that are roll-formed for each project, requiring specialized roll-forming equipment. Verify type required and availability from specific roof panel manufacturers.
A. Manufactured stainless steel roof panels for on-roof machine-seaming, including provision of portable machine tools.
B. Manufactured stainless steel roof panels for on-roof machine-seaming, including provision of roll-forming equipment and portable machine tools.
C. Provide all labor, materials, tools, equipment, and services for complete roof panel system.
1.2 RELATED SECTIONS
NOTE ** Delete any sections below not relevant to this project; add others as required.
A. Section 05120 - Structural Steel: Roof framing.
B. Section 05310 - Steel Deck.
C. Section 06100 - Rough Carpentry: Roof framing and sheathing.
NOTE ** Delete references from the list below that are not actually required by the text of the edited section.
A. ASCE 7 - Minimum Design Loads for Buildings and Other Structures; American Society of Civil Engineers.
B. ASTM A 240/A 240M - Standard Specification for Heat-Resisting Chromium and Chromium-Nickel Steel Plate, Sheet, and Strip for Pressure Vessels.
C. ASTM A 308 - Standard Specification for Sheet, Terne (Lead-Tin Alloy) Coated by the Hot-Dip Process.
NOTE ** The following paragraph should be included only if referenced under Performance Requirements, for wind uplift testing.
D. ASTM E 907 - Standard Test Method for Field Testing Uplift Resistance of Roofing Systems Employing Steel Deck, Rigid Insulation and Bituminous Built-Up Roofing.
E. SSIUS - Designer Handbook Series; Specialty Steel Industry of the United States (SSIUS).
1. Stainless Steel for Roofing, Flashings, Copings.
2. Design Guidelines for the Selection and Use of Stainless Steel.
3. Specifications for Stainless Steel.
4. Stainless Steel Fabrication.
5. Stainless Steel FastenersCA Systematic Approach to Their Selection.
6. Finishes for Stainless Steel.
7. Stainless Steel Architectural Facts.
F. SMACNA - Architectural Sheet Metal Manual; Sheet Metal and Air Conditioning Contractors National Association, Inc.; fifth edition, 1993.
1.4 PERFORMANCE REQUIREMENTS
NOTE ** The following text is an example for format and arrangement. Enter values and add any other relevant requirements after consultation with the roof panel manufacturer. Do not include requirements that cannot be met by the panel products specified.
A. Design roof assembly to conform to the requirements of ASCE 7, Minimum Design Loads for Buildings and Other Structures.
B. Structural Performance: Design to support the following loads.
1. Uniform live load of ____ psf.
2. Snow load of ____ psf.
3. Equipment loads as indicated on the drawings.
C. Air Infiltration: ____ cfm per linear foot of seam, maximum, when tested in accordance with ________.
D. Water Penetration: No leakage at ____ psf static pressure difference, when tested in accordance with _____.
NOTE ** Retain the paragraph below after consultation with roofing manufacturer. Delete if UL Class 90 roof is not required for the project, or modify if FM I-90 or I-60 is required for the project.
E. Wind Uplift: Provide roof assemblies meeting requirements of ASTM E 907 for UL Class 90 wind uplift resistance.
F. Wind-Uplift Resistance: ______, when tested in accordance with _______.
1.5 SUBMITTALS
A. Submit under provisions of Section 01300.
B. Product Data: Submit manufacturer's product specifications for materials and finishes, standard details, installation instructions, test data, and general recommendations, for each component and for complete roof panel installation.
C. Shop Drawings: Showing methods of erection, elevations and plans of roof panels, sections and details, anticipated loads, flashings and other accessories, interfaces with related work of other trades, and proposed identification of component parts and their finishes.
D. Samples: Submit samples of stainless steel roof panel, 12 inches by 12 inches minimum, including clips and battens, if applicable.
E. Certifications: Submit certification that roof panel assembly meets specified loading requirements and has been tested to provide specified resistance to wind uplift and air and water infiltration
1.6 QUALITY ASSURANCE
A. Manufacturer Qualifications: Minimum of 5 years of experience manufacturing stainless steel roof panel systems similar to roof panel system required for this project.
B. Installer Qualifications: Minimum of 5 years of experience in installing stainless steel roof panel systems similar to roof panel system required for this project.
C. Field Measurements: Where possible, take field measurements of structural framing and substrate to receive the stainless steel roof panels, prior to fabrication of roof panels.
NOTE ** Delete the following if not required. A mock-up is probably not required or justified for standard manufactured products.
D. Mock-Up: Before proceeding with installation, prepare a project mock-up that incorporates materials and methods of fabrication and installation identical with project requirements.
1. Retain accepted mock-up as quality standard for acceptance of completed stainless steel roof panel installation.
2. If accepted, mock-up may be incorporated as a part of the work.
1.7 DELIVERY, STORAGE, AND HANDLING
A. Deliver stainless steel roof panels to the project site properly packaged to provide protection against transportation damage and adverse weather. Inspect roof panel materials upon arrival at site. Notify manufacturer of any damaged or stained material.
B. Store stainless steel material and accessories above ground on well skidded platforms. Elevate one end of each skid to allow for moisture run-off. Store under waterproof covering. Provide proper ventilation to prevent condensation build-up between each roof panel system elements.
C. Exercise extreme care in unloading, storing and erecting stainless steel roof panels to prevent bending, warping, twisting, and surface damage.
1.8 WARRANTY
A. Material Warranty: Provide material warranty issued by manufacturer to cover stainless steel roof panels base metal against rupture, structural failure, or perforation due to exposure to normal atmospheric corrosion.
NOTE ** Retain the paragraph below only if available from contractor and installer; otherwise delete. Coordinate with "Conditions of the Contract" for the project.
B. Weathertightness Warranty: Provide warranty issued by contractor and roof panel installer to cover roof panel system against leaks arising out of or caused by ordinary wear and tear under normal weather and atmospheric conditions.
C. Finish Warranty: Provide manufacturer's material warranty to cover roof panel finish defects.
PART 2 PRODUCTS
2.1 MANUFACTURERS
NOTE ** Contact the Specialty Steel Industry of the United States, Inc. for a directory of members.
A. Stainless Steel Sheet: Provide material manufactured by a producing mill member of the Specialty Steel Industry of the United States. ASD.
NOTE ** The manufacturers of the stainless steel sheet usually do not also make it into manufactured roof panels. Consult roof panel manufacturers' catalog literature for information about types and styles available.
B. Roof Panels: Provide stainless steel roof panels, flashings and accessories from one of the following manufacturers:
1. ____________.
2. ____________.
3. ____________.
NOTE ** Delete one of the two paragraphs below; coordinate with Division 1 requirements.
C. Requests for substitutions will be considered in accordance with provisions of Section 01600.
D. Substitutions: Not permitted.
2.2 MATERIALS
NOTE ** Select one of the following stainless steel types below.
A. Stainless Steel Sheet: ASTM A 240/A 240M, Type 304, fully annealed, dead soft temper, finish and thickness as indicated and in accordance with roof panel manufacturer's standards.
B. Stainless Steel Sheet: Terne-coated stainless steel sheet, complying with ASTM A 308, Type 304, fully annealed, dead soft temper.
1. Coating: Coat both sides of stainless steel sheet with terne alloy (80-20 lead/tin) in accordance with manufacturer's standards for nominal coating weight.
2. Thickness as indicated and in accordance with manufacturer's standard.
2.3 MANUFACTURED UNITS
A. Roof Panels: Roll-formed continuous stainless steel roof panels, designed for on-roof machine seaming.
NOTE ** Delete all but one of the following panel type descriptions. Edit as required to describe the actual product necessary.
1. Panel Type: Standing-seam.
2. Panel Type: Batten-seam.
3. Panel Type: Profile indicated on drawings.
NOTE ** Delete one of the following panel length descriptions. Most manufacturers have maximum panel lengths that are determined by their manufacturing capabilities. If very long lengths are required, such as lengths to eliminate all horizontal joints, on-site roll-forming is available -- specify length required so contractor will know that that is a requirement of the project.
4. Panel Lengths: Up to manufacturer's maximum standard lengths.
5. Panel Lengths: ________ feet, minimum.
NOTE ** Select panel thickness below after consultation with material producers and roof panel manufacturer. 0.019 inch is the equivalent of 26 gage and is only one of the many thicknesses available.
6. Metal Thickness: 0.019 inch.
7. Metal Thickness: _____ inch.
NOTE ** Select finish below after consultation with material producer and roof panel manufacturer; verify appropriate finish for project requirements. Other finishes are available. No.1 finish is only for mill-ordered width less than 24 inches.
8. Finish: No.2D (dull) mill rolled sheet finish.
9. Finish: No.1 (dull mill rolled strip finish).
10. Finish: ________.
11. Finish: As selected by Architect from roof panel manufacturer's standards.
B. Batten Caps: Same material and finish as roof panel sheets; panel manufacturer's standard design.
C. Trim, Flashing and Accessories: Same material and finish as roof panel sheets, and as detailed on drawings.
D. Include all clips, anchors, and other accessories necessary for a sound, secure and complete installation.
PART 3 EXECUTION
3.1 EXAMINATION
A. Verify that substrates and adjacent work are ready to receive work of this section. Do not proceed until unsatisfactory conditions have been corrected.
3.2 INSTALLATION
A. Install roof panels in accordance with manufacturer's instructions and shop drawings, including the use of "starter" strips.
B. Install panels plumb, level, and straight, with seams and ribs/battens parallel, conforming to the design as indicated.
C. Install roof panels for a weathertight condition, allowing for expansion and contraction of metal.
D. Install underlayment as recommended by panel manufacturer.
E. Prevent contamination of stainless steel by such elements as iron filings, carbon steel fasteners, hydrochloric acid base fluxes, and chloride masonry cleaners.
3.3 ADJUSTING AND CLEANING
A. Legally dispose of excess materials and remove debris from site.
B. Clean work in accordance with recommendations of roof panel manufacturer.
C. Touch up minor scratches and abrasions as recommended by roof panel manufacturer.
D. Protect work against damage. Replace work that becomes damaged prior to final acceptance.
