Product catalog for IMETCO metal roof, wall and edge products. Binder cover, tabs, and contents all designed by Amy Stokes.

2. High Performance Metal Roofing, Wall and Edge
Architectural Binder - Division 7
Innovative Metals Company, Inc.
(800) 646-3826
www.imetco.com

3. COPYRIGHT
All materials contained within are subject to change and are not guaranteed for their accuracy towards a particular project until verified by an
authorized IMETCO representative.
No portion of this manual or material contaned on the website may be reproduced or copied in any form without the written permission of
Innovative Metals Company, Inc. (IMETCO) or Garland Industries, Inc. Unauthorized duplication is a violation of all applicable laws.
For more information, visit us at www.imetco.com.
IMETCO
4648 South Old Peachtree Road
Norcross, GA 30071
Toll free: (800) 646-3826
Phone: (770) 908-1030
Fax: (770) 908-2264
All ™ and ® are trademarks of Innovative Metals Company, Inc., a subsidiary of Garland Industries, Inc., unless otherwise specified.
© 2011 Innovative Metals Company, Inc.

5. Table of Contents
IMETCO Metal Roofing Systems
Series 300® Symmetrical Standing Seam Metal Roofing
Standard Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
PV Flat Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Testing and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
SnapLok™ Standing Seam Metal Roofing
Standard Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Testing & Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
TwinLok™ Standing Seam Metal Roofing
2.0 Standard Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
2.0 Testing & Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
2.0 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
1.5 Standard Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
1.5 Testing & Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45
1.5 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47
PermLok™ Standing Seam Metal Roofing
1.5 Standard Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55
1.5 Testing & Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
1.5 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59
1.0 Standard Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
1.0 Testing & Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
1.0 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .69
SS Panel Symmetrical Standing Seam Metal Roofing
Standard Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Testing and Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .79
Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81
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Roof Systems – Page i
product details, information and specifications
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19. Series 300® Symmetrical Standing Seam Metal Roofing — Batten Profile
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Roof Systems – Page 6
product details, information and specifications
© 2011 All Rights Reserved

20. Series 300® Symmetrical Standing Seam Metal Roofing — PV Flat Profile
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Roof Systems – Page 7
product details, information and specifications
© 2011 All Rights Reserved

21. Series 300® Symmetrical Standing Seam Metal Roofing — Standard Profile
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Roof Systems – Page 5
product details, information and specifications
© 2011 All Rights Reserved

22. Series 300® Symmetrical Standing Seam Metal Roofing — PV Flat Batten Profile
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Roof Systems – Page 8
product details, information and specifications
© 2011 All Rights Reserved

23. Series 300® Symmetrical Standing Seam Metal Roofing — Testing and Materials
Available Panel Materials
Galvanized Steel: 24-gauge, 22-gauge, and 20-gauge in 28 Kynar Colors
Aluminum: 0.032-inch, 0.040-inch, and 0.050-inch in 28 Kynar Colors
United Zinc: 0.7mm, 0.8 mm and 1.0 mm in Glacier Gray and Onyx Black
Copper: 16 ounce and 20 ounce
Manufacturing Capabilities
Panel Length, Factory Formed: 4ft. – 80 ft.
Panel Length, Field Formed: 4ft. – 225 ft.
Seam Sealant: Standard
Standard Mechanical Finish: Center Stiffening Rib and Two Pencil Beads
Curving*: 5’-6” Minimum Radius in 0.050” Aluminum
Tapering: 5.5” Minimum, 17.5” Maximum Panel Width
Performance Testing*
American Architectural Manufacturers Association
Wind Driven Rain AAMA 501.1 8”/Hr. and 70mph for 5 minutes
American Society for Testing and Materials
Structural Performance ASTM E1592 12” to 84” o.c. Clip Spacing
Water Penetration ASTM E1646 No Leakage @ 20.0 psf
Air Leakage ASTM E1680 0.006 CFM/sf @ 20.0 psf
Large Missile Impact ASTM E1886 15 lb. projectile at 67 mph
Static Water Pressure Head ASTM E2140 6” water head for 6 hours
Factory Mutual Global
Wind Uplift Resistance FM4471 Class I, up to 1-150 rating
Florida Building Code
Static Water Pressure Head TAS 114(G) 6” water head for 168 hours
Wind Driven Rain TAS 100 8.8”/Hr. and 110 mph for 5 minutes
Wind Uplift Resistance TAS 125 Up to 570 psf ultimate load
Large Missile Impact TAS 201/203 9 lb. projectile at 34 mph
Miami-Dade Product Approval N.O.A. Structural and non-structural, steel and aluminum panels.
Underwriter Laboratories
Wind-Uplift Resistance UL 580 Class 90
Fire Resistance (Exterior) UL 790 Class A
* Note: Not all testing is applicable to all panel material types, gauges, and widths. Please consult with IMETCO for detailed information.
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Roof Systems – Page 9
product details, information and specifications
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24. Series 300® Symmetrical Standing Seam Metal Roofing — Specification
SECTION 074113 - STANDING SEAM ROOF PANELS Factory Mutual approvals are only valid for certain material, gauge, and panel width configurations.
Also, Factory Mutual assembly requirements may significantly affect structural roof elements beyond
This specification is applicable for IMETCO Series 300 structural standing seam panel system with separate the metal roofing system. Please contact IMETCO for guidance if considering specifying Factory Mutual
mechanically seamed batten cap. requirements.
E. Factory Mutual Approvals (FM):
PART 1 - GENERAL 1. FM 4471, August 1995: Approval Standard for Class I Panel Roofs.
1.1 RELATED DOCUMENTS The following test protocols are specific to Florida state building code requirements. They are similar to
Retain or delete this article in all Sections of Project Manual. requirements of national standard tests referenced elsewhere in this specification. Please delete if this
project is not subject to Florida Building Code requirements.
A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and
F. Florida Building Code (FBC):
Division 01 Specification Sections, apply to this Section.
1. TAS 114-95.1: Test Procedure for Roof Assemblies in High Velocity Hurricane Jurisdiction.
1.2 SUMMARY.
2. TAS 100-95: Test Procedure for Wind and Wind Driven Rain Resistance of Discontinuous Roof.
Modify as necessary
3. TAS 201-95.1: Impact Test Procedures.
A. Work described in this section includes pre-formed metal roofing system complete with clips, perimeter
4. TAS 203-95.1: Criteria for Testing Products Subject to Cyclic Wind Pressure Loading.
and penetration flashing, closures, gutters, and downspouts.
G. Sheet Metal and Air Conditioning Contractors National Association (SMACNA):
B. Related work specified elsewhere:
1. Architectural Sheet Metal Manual, 6th edition.
1. Structural steel.
H. Underwriters Laboratory (UL):
2. Steel joists.
1. UL 580, 4th Ed.: Standard for Tests for Uplift Resistance of Roof Assemblies.
3. Metal roof decks.
2. UL 790, 7th Ed.: Standard for Tests for Fire Resistance of Roof Covering Materials.
4. Wood roof decks.
I. National Association of Architectural Metal Manufacturers (NAAMM)
5. Metal fabrications.
1. Metal Finishes Manual for Architectural and Metal Products
6. Rough carpentry.
1.4 DESIGN AND PERFORMANCE CRITERIA
7. Flashing and sheet metal. (Not roof panel related).
A. Thermal Expansion and Contraction:
8. Air barrier and vapor retarder.
1. Completed metal roofing and flashing system shall be capable of withstanding expansion and
9. Thermal insulation.
contraction of components caused by changes in temperature without buckling, or reducing
10. Sealants. performance ability.
1.3 DEFINITIONS 2. The design temperature differential shall be not less than 220 degrees Fahrenheit.
A. American Architectural Manufacturer Association (AAMA): 3. Interface between panel and clip shall provide for unlimited thermal movement in each direction
1. AAMA 501.1-05: Standard Test Method for Water Penetration of Windows, Curtain Walls and Doors along the longitudinal direction.
Using Dynamic Pressure. B. Uniform Wind Uplift Load Capacity.
2. AAMA 621-96: Voluntary/Standard Specifications for High Performance Organic Coatings on Coil 1. Installed roof system shall withstand negative wind uplift pressures complying with the following
Coated Architectural Hot Dipped Galvanized (HDG) Zinc-Aluminum Coated Steel Substrates criteria.
B. American Iron and Steel Institute (AISI): a. Design Code: ASCE 7, Method 2 for Components and Cladding.
1. S100-07: 2007 Edition of the North American Specification for the Design of Cold-Formed Steel b. Safety Factor: As determined in accordance with AISI S100 section D6.2.1, but in no instance
Structural Members. shall the safety factor be taken to be less than 1.67 for any roof or wall zone. The provisions of
C. American Society of Civil Engineers (ASCE): Section D6.2.1a of Appendix A shall NOT be applicable for this project.
1. ASCE 7-05: Minimum Design Loads for Buildings and Other Structures. Select the wind uplift pressure design factors that are applicable to this project. Please contact IMETCO
D. American Society for Testing and Materials (ASTM): for guidance in selecting appropriate factors and pressures for this specific project.
1. A653-03: Specification for Steel Sheet, Zinc-coated (Galvanized) or Zinc-Iron Alloy-Coated c. Category [I] [II] [III] [IV] Building with an Importance Factor of [0.77] [1.00] [1.15].
(Galvannealed) by the Hot-Dip Process. d. Wind Speed: mph.
2. A755–03: Standard Specification for Steel Sheet, Metallic Coated by the Hot-Dip Process and e. Exposure Category: [B] [C] [D].
Prepainted by the Coil-Coating Process for Exterior Exposed Building Products. f. Mean Roof Height: ______ feet.
3. A792-03: Specification for Steel Sheet, 55% Aluminum-Zinc Alloy-Coated by the Hot-Dip Process. g. Minimum Building Width: ______ feet.
4. B209-02a: Specification for Aluminum and Aluminum-Alloy Sheet and Plate. h. Roof Pitch: ______ inches per foot.
5. D1056-00: Specification for Flexible Cellular Materials - Sponge or Expanded Rubber. Roof Area Negative Uplift Pressure:
6. D3575-00e1: Standard Test Methods for Flexible Cellular Materials made from Olefin Polymers. Zone 1 - Field of roof ______ psf.
7. E1514-98(2003) Standard Specification for Structural Standing Seam Steel Roof Panels. Ridges and hips are only included in zone 2 for roof pitches exceeding 2:12. Delete ridges and hips
8. E1592-01: Standard Test Method for Structural Performance of Sheet Metal Roof and Siding from the following line, if appropriate.
Systems by Uniform Static Air Pressure Difference. Zone 2 – Eaves [, ridges, hips,] and rakes ______ psf.
9. E1637-98(2003) Standard Specifications for Structural Standing Seam Aluminum Roof Panel Zone 3 – Corners ______ psf.
Systems.
The “a” dimension used to determine the width of roof zones 2 and 3 shall be ______ feet.
10. E1646-95(2003): Standard Test Method for Water Penetration of Exterior Metal Roof Panel Systems
2. The ultimate capacity of the panel system shall be determined based on performance testing
by Uniform Static Air Pressure Difference.
in accordance with ASTM E1592. The allowable load carrying capacity shall be calculated in
11. E1680-95(2003): Standard Test Method for Rate of Air Leakage Through Exterior Metal Roof Panel accordance with AISI S100 section D6.2.1, except the provisions of Section D6.2.1a of Appendix A
Systems. shall NOT be applicable for this project.
12. E1886-02: Test Method for Performance of Exterior Windows, Curtain Walls, Doors, and Storm C. Uniform Positive Load Capacity.
Shutters Impacted by Missile(s) and Exposed to Cyclic Pressure Differentials.
1. Uniform positive load capacity shall be determined in accordance with AISI S100.
13. E1996-09 Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors, and
2. The installed roof system shall be capable of resisting each of the following positive uniform roof
Impact Protective Systems Impacted by Windborne Debris in Hurricanes.
loads: Roof Live Load of 20 psf; Roof Snow Load of ______ psf.
14. E2140-01: Standard Test Method for Water Penetration of Metal Roof Panels Systems by Static Water
3. Installed roof system shall carry positive uniform design loads with a maximum system deflection of
Pressure Head.
L/180 as measured at the rib (web) of the panel.
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25. Series 300® Symmetrical Standing Seam Metal Roofing — Specification
D. Wind Uplift Classification: The panel system shall be listed as a Class 90 windstorm rated system, as D. Warranty: Provide unexecuted specimen warranty documents for each warranty as required in
determined by UL 580. specification article 1.10.
E. Fire Resistance Classification: The panel system shall be listed as a Class A Roof Covering, as determined E. Samples.
by UL 790. 1. Submit sample of panel section, at least 6” x 6” showing seam profile and also a sample of color
F. Air infiltration: The panel system shall be tested in accordance with ASTM E1680, and meet or exceed the selected.
following performance requirements: 2. Submit sample of panel clip, gable clip, batten seam cap with sealant, and preformed metal and
Pressure Area Leakage Rate foam closures.
1.57 PSF 0.0030 cfm/sq.ft. 1.6 QUALITY CRITERIA/INSTALLER QUALIFICATIONS.
6.24 PSF 0.0045 cfm/sq.ft. A. Engage an experienced metal roofing contractor (erector) to install standing seam system who has a
20.0 PSF 0.0060 cfm/sq.ft. minimum of three (3) years experience specializing in the installation of structural standing seam metal
roof systems.
G. Static air pressure water infiltration: The panel system shall be tested in accordance with ASTM E1646,
and meet or exceed the following performance requirements: B. Contractor must be certified by manufacturer specified as a supplier of standing seam system and obtain
written certification from manufacturer that installer is approved for installation of the specified system.
Pressure Result
C. Successful contractor must obtain all components of roof system from a single manufacturer. Any
6.2 Gal/Hr per S.F. and Static Air No Leakage
secondary products that are required which cannot be supplied by the specified manufacturer must be
Pressure of 20.0 psf for 15 minutes recommended and approved in writing by primary manufacturer prior to bidding.
In the next 3 sections, delete reference to FBC test protocols if this project is NOT subject to the requirements D. Fabricator/Installer shall submit work experience and evidence of adequate financial responsibility.
of the Florida Building Code. Architect reserves the right to inspect fabrication facilities in determining qualifications.
H. Static water pressure head water infiltration. 1.7 DELIVERY, STORAGE, AND HANDLING.
1. The panel system shall be tested in accordance with ASTM E2140, and pass with no leakage. The A. Inspect materials upon delivery.
test specimen must include a panel end lap condition and successfully withstand being submerged
B. Handle materials to prevent damage.
under 6” of water for 6 hours.
C. Store materials off ground providing for drainage; under cover providing for air circulation; and
2. The panel system shall be tested in accordance with the FBC TAS 114 Appendix G, and pass with no
protected from any debris.
leakage. The test specimen must successfully withstand being submerged under 6” of water for 168
hours. 1.8 PROJECT CONDITIONS
I. Dynamic pressure water penetration. A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions
permit metal roof panel work to be performed according to manufacturer’s written instructions and
1. The panel system shall be tested in accordance with AAMA 501.1, and pass with no water
warranty requirements.
penetration, other than condensation, when exposed to 8” per hour of dynamic rain and 70 mph
wind velocities for not less than five (5) minutes duration. B. Field Measurements: Verify actual dimensions of construction contiguous with metal roof panels by
field measurements before fabrication.
2. The panel system shall be tested in accordance with FBC TAS 100, and pass with no water
penetration, other than condensation, when exposed to 8.8” per hour of dynamic rain and 110 mph 1.9 COORDINATION
wind velocities for not less than five (5) minutes duration. A. Coordinate sizes and locations of roof curbs, equipment supports, and roof penetrations with actual
J. Missile Impact Test and Cyclic Wind Pressure Test. equipment provided.
1. The panel system shall be tested in accordance with ASTM E1886. The tested system shall be of Modify the following paragraph to indicate the scope of this project.
identical profile and material type as the specified panel for this project; thicker gauge and/or B. Coordinate metal roof panels with rain drainage work, flashing, trim, and construction of [decks, purlins,
narrow width panels than those tested will be acceptable. The anchor clip spacing for this project rafters, parapets, walls,] and other adjoining work to provide a leak proof, secure, and noncorrosive
shall be based on E1592 requirements, but shall not exceed that of the E1886 test report. installation.
2. The panel system shall be tested in accordance with FBC Test Protocols TAS 201 and TAS 203. The 1.10 WARRANTIES
tested system shall be of identical profile and material type as the specified panel for this project; A. Endorse and forward to owner the following warranties:
thicker gauge and/or narrow width panels than those tested will be acceptable. The anchor clip
1. Manufacturer’s standard 20 year roof system weathertightness warranty, jointly signed by the
spacing for this project shall be based on E1592 requirements, but shall not exceed that of the TAS
installer and manufacturer. The warranty shall not place any limitations on wind speed, up to a
201 test reports.
maximum design wind speed as given in Article 1.4 of this specification.
Factory Mutual approvals are only valid for certain material, gauge, and panel width configurations. Also,
2. Manufacturer’s standard 20 year finish warranty covering checking, crazing, peeling, chalking,
Factory Mutual assembly requirements may significantly affect structural roof elements beyond the metal
fading, and adhesion of the prepainted sheet metal materials.
roofing system. Please contact IMETCO if considering specifying Factory Mutual requirements.
3. Installer’s 3 year warranty covering roof panel system installation and watertightness.
K. Class I Panel Rating: The specified panel system shall be listed as a Class I Panel Roof, in accordance with
FM 4471. The tested system shall be identical to the specified panel for this project with regard to profile, B. Warranties shall commence on date of substantial completion.
gauge, width, and material. The anchor clip spacing for this project name shall be based on E1592
requirements, but the clip spacing for roof zone 1 shall not exceed that of the FM 4471 test reports. PART 2 - PRODUCTS
1.5 SUBMITTALS. 2.1 PANEL MATERIALS
A. Shop drawings: Show roof panel system with flashings and accessories in plan view; sections and details. A. Painted, metallic-Coated Steel Sheet: Restricted flatness steel sheet metallic coated by the hot-dip
Include metal thicknesses and finishes, panel lengths, joining details, anchorage details, flashings and process and prepainted by the coil-coating process to comply with ASTM A755/A755M.
special fabrication provisions for termination and penetrations. Indicate relationships with adjacent 1. Recycled Content: Provide steel sheet with average recycled content such that postconsumer
and interfacing work. Shop drawings to be prepared by metal roof panel manufacturer and sealed by a recycled content plus one-half of preconsumer recycled content is at least 70 percent.
professional engineer registered in the state of the project location.
2. [24] [22] [20] gauge, Zinc-Coated (Galvanized) Steel Sheet, as per ASTM A653: G90 (Z275) coating
B. Financial Certification: Provide the building owner with a signed and notarized (sealed) affidavit by designation; structural quality, grade 40 ksi (275 MPa).
an officer of the panel system manufacturer which confirms a current minimum corporate asset-to-
Stucco embossed material is generally NOT preferred for prefinished sheet steel materials. When specifying
liability ratio of not less than 3:1 for the panel manufacturer, or its parent corporation. Financial support
embossed material, there is always a risk of the process resulting in micro-fracture of the coating, which can
information and affidavit must be dated within 30 days prior to the product submittal.
lead to premature failure of the coating and corrosion of the substrate.
C. Design Test Reports.
3. Texture: [Smooth] [Stucco Embossed] surface.
1. Submit copies of design test reports for each of the performance testing standards listed in
4. Exposed Coil-Coated Finish:
specification article 1.4.
a. 2-Coat Fluoropolymer: AAMA 621. Fluoropolymer finish containing not less than 70 percent
2. Test reports shall be performed by independent, accredited testing laboratories, and shall bear the
PVDF resin by weight in color coat. Manufacturers’ approved applicator to prepare, pretreat,
seal of a registered professional engineer.
and apply coating to exposed metal surfaces to comply with coating and resin manufacturers’
written instructions.
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26. Series 300® Symmetrical Standing Seam Metal Roofing — Specification
b. Coating system shall provide nominal 1.0 mil (0.025 mm) dry film thickness, consisting of Retain first paragraph below if required.
primer and color coat. B. Polyethylene Vapor Retarders: ASTM D 4397, 6-mils- (0.15-mm-) thick, with maximum permeance
Select one of the following 4 color choices: rating of 0.13 perm (7.5 ng/Pa x s x sq. m).
c. Color shall be IMETCO’s ______. Board insulations in first four paragraphs below are typically used over metal deck and solid sheathing.
d. Color shall be selected from IMETCO’s Standard Colors. Unfaced board insulation and insulation with foil or asphalt felt/glassfiber mat facing require 16 gauge
bearing plates or Z-shaped furring or channels for metal roof panel support; oriented-strand-board-faced
e. Color: Custom color selected by architect.
board insulation does not.
f. Color shall be: ______.
Board insulation is recommended to be installed in two or more layers with joints staggered from layer to
5. Concealed Finish: Apply pretreatment and manufacturer’s standard white or light-colored polyester layer. The lower layers should be specified as unfaced, foil faced or glass-fiber faced boards. Foam board
backer finish, consisting of prime coat and wash coat with a minimum total dry film thickness of 0.5 insulation may impact the fire and flame spread rating of a roof assembly; generally, less that 4” of total
mil (0.013 mm). thickness of polyisocyanurate insulation is acceptable for most roof assemblies. Approved assemblies with
B. Clear acrylic coated, metallic-Coated Steel Sheet: Restricted flatness steel sheet metallic coated by the thicker foam insulation can be achieved – please contact IMETCO for additional assistance.
hot-dip process and prepainted by the coil-coating process to comply with ASTM A755/A755M. C. Unfaced, Polyisocyanurate Board Insulation: ASTM C 591, Type II, compressive strength of 35 psi (240
1. Recycled Content: Provide steel sheet with average recycled content such that postconsumer kPa), with maximum flame-spread and smoke-developed indexes of 75 and 450, respectively, based on
recycled content plus one-half of preconsumer recycled content is at least 70 percent. tests performed.
2. [24] [22] gauge, 55% Aluminum-Zinc alloy coated Steel Sheet, as per ASTM A792: AZ55 (AZ165) D. Faced, Polyisocyanurate Board Insulation: ASTM C 1289, [Type I, Class 1 aluminum foil] [Type II, Class
coating designation; with a nominal .04 mil (0.010 mm) dry film thickness of a clear organic 1 or 2 felt or glass-fiber mat, Grade 3] [Type V, oriented-strand-board facing], with maximum flame-
polymer top film; structural quality, grade 50 ksi (340 MPa). spread and smoke-developed indexes of 75 and 450, respectively, based on tests performed on unfaced
Stucco embossed material is generally NOT preferred for coated sheet steel materials. When specifying core.
embossed material, there is always a risk of the process resulting in micro-fracture of the coating, which can Polystyrene insulation in first two paragraphs below may not be suitable for highertemperatures associated
lead to premature failure of the coating and corrosion of the substrate. with metal roofing. Verify acceptability with metal roof panel manufacturer.
3. Texture: [Smooth] [Stucco Embossed] surface. E. Extruded-Polystyrene Board Insulation: ASTM C 578, Type IV, 1.60-lb/cu. ft. (26-kg/cu. m) minimum
C. [Painted] [Mill Finish] Aluminum Sheet. density unless otherwise indicated; with maximum flame-spread and smoke-developed indexes of 75
and 450, respectively.
1. Recycle Content: Provide steel sheet with average recycled content such that postconsumer recycled
content plus one-half of preconsumer recycled content is at least 45 percent. F. Molded-Polystyrene Board Insulation: ASTM C 578, [Type I, 0.9 lb/cu. ft. (15 kg/cu. m) ] [Type II, 1.35
lb/cu. ft. (22 kg/cu. m)], with maximum flame-spread and smoke-developed indexes of 75 and 450,
2. [0.032”] [0.040” ] [0.050”] aluminum alloy 3003, 3004, 3005, or 3105 with H14 or H24 heat
respectively.
treatment, as per ASTM B209/209M.
G. Unfaced, Glass-Fiber Board Insulation: ASTM C 612, Type IA or Types IA and IB; with maximum flame-
Stucco embossed material is generally NOT preferred for prefinished aluminum sheet materials. When
spread and smoke-developed indexes of 25 and 50, respectively; and with a nominal density of 3 lb/cu.
specifying embossed material, there is always a risk of the process resulting in micro-fracture of the coating,
ft. (48 kg/cu. m).
which can lead to premature failure of the coating and corrosion of the substrate.
Verify type of insulation required to obtain a fire-resistance rating if required.
3. Texture: [Smooth] [Stucco Embossed] surface.
Metal building insulation in paragraph below is commonly used with metal roof panels installed over
If specifying prefinished painted materials, delete the following section.
purlins, especially if it is to be exposed on the interior. Type I insulation is unfaced; Type II is faced.
4. Mill Finish Aluminum: The exposed and unexposed sheet surfaces shall be bare as furnished by the
H. Metal Building Insulation: [ASTM C 991, Type I] [ASTM C 991, Type II], glass-fiber-blanket insulation;
mill.
0.5-lb/cu. ft. (8-kg/cu. m) density; 2-inch- (50-mm-) wide, continuous, vapor-tight edge tabs; and with
If specifying mill finish panels, delete the following two sections. a flame-spread index of 25 or less.
5. Exposed Coil-Coated Finish: NAIMA recommends that metal building insulation have a vapor-retarder facing with a permeance not
a. 2-Coat Fluoropolymer: AAMA 621. Fluoropolymer finish containing not less than 70 percent greater than 0.10 perm (5.75 ng/Pa x s x sq. m). Facing selection may also be affected by light reflectivity
PVDF resin by weight in color coat. Manufacturers’ approved applicator to prepare, pretreat, and cold-weather workability.
and apply coating to exposed metal surfaces to comply with coating and resin manufacturers’ 1. Vapor-Retarder Facing: ASTM C 1136, with permeance not greater than 0.02 perm (1.15 ng/Pa x s x
written instructions. sq. m) when tested according to ASTM E 96, Desiccant Method:
b. Coating system shall provide nominal 1.0 mil (0.025 mm) dry film thickness, consisting of a. Composition: [Polypropylene faced, scrim reinforced, and kraft-paper backing] [Foil faced,
primer and color coat. scrim reinforced, and kraft-paper backing with vapor-retarder coating] [Polypropylene faced,
Select one of the following 4 color choices: scrim reinforced, and foil backing] [Vinyl faced, scrim reinforced, and foil backing] [Vinyl faced,
c. Color shall be IMETCO’s ______. scrim reinforced, and polyester backing].
d. Color shall be selected from IMETCO’s Standard Colors 2. Insulation Retainer Strips: 0.019-inch- (0.48-mm-) thick, formed, galvanized-steel or PVC retainer
clips colored to match insulation facing.
e. Color: Custom color selected by architect.
3. Thermal Spacer Blocks: Fabricated from extruded polystyrene, 1-inch- (25-mm-) thick.
f. Color shall be: ______.
2.3 SUBSTRATE BOARD
6. Concealed Finish: Apply pretreatment and manufacturer’s standard white or light-colored polyester
backer finish, consisting of prime coat and wash coat with a minimum total dry film thickness of 0.5 A. Glass-Mat Gypsum Sheathing Board: ASTM C 1177/C 1177M.
mil (0.013 mm). 1. Type and Thickness: [Regular, 1/2 inch (13 mm)] [Type X, 5/8 inch (16 mm)].
D. Panel Sealants: Retain the following paragraph is specifying a self-adhesive underlayment.
1. Seam Cap Sealant: Factory applied hot melt, high viscosity, pressure sensitive adhesive with high 2. The top surface of the substrate board shall be pre-primed to provide for adhesion of the self-
heat resistance. adhering underlayment material.
2. Sealant Tape: Non-curing, 100 percent solids, polyisobutylene compound sealant tape with release- 3. Product: Subject to compliance with requirements, provide Dens-Dek Prime by Georgia-Pacific
paper backing. Provide permanently elastic, nonsag, nontoxic, nonstaining tape 1-inch- (13-mm-) Corporation.
wide and 1/16-inch- (3-mm-) thick. B. Substrate-Board Fasteners: Factory-coated steel fasteners and metal or plastic plates complying with
3. Exposed Sealant: ASTM C 920; elastomeric tripolymer, polyurethane, or other advanced polymer corrosion-resistance provisions in FMG 4470, designed for fastening substrate board to substrate.
sealant; of type, grade, class, and use classifications required to seal joints in metal roof panels and 2.4 UNDERLAYMENT MATERIALS
remain weathertight; and as recommended in writing by metal roof panel manufacturer.
A. Self-Adhering with reinforcing scrim, High-Temperature Sheet: [50-mils- (1.3-mm-)] [60-mils- (1.5-
4. Concealed Sealant: ASTM C 1311: Butyl-Based, Solvent-Release, One-Part Sealant. mm-)] thick minimum, consisting of slip-resisting top surface laminated to SBS-modified asphalt
2.2 FIELD-INSTALLED THERMAL INSULATION adhesive, with release-paper backing; cold applied.
A. Refer to Division 07 Section “Thermal Insulation.” 1. Thermal Stability: Stable after testing at 250 deg F (121 deg C); ASTM D 1970.
2. Low-Temperature Flexibility: Passes after testing at minus 20 deg F (29 deg C); ASTM D 1970.
3. Seams shall be lapped in accordance with manufacturer’s recommendations.
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27. Series 300® Symmetrical Standing Seam Metal Roofing — Specification
4. Underlayment shall be approved for 90 days (minimum) of exposure to UV and weather b. Configuration: Standing seams incorporating mechanically interlocked, concealed anchor clips
penetrations. which allow unlimited thermal movement.
5. Products: Subject to compliance with requirements, provide one of the following: 1) Profile of panel shall have two stiffening beads positioned 1-½” (38 mm) from the vertical
a. Aqua Block 50 by IMETCO of Norcross, GA seam and one raised stiffening rib centered in the panel.
b. Aqua Block 60 by IMETCO of Norcross, GA 2) Exposed fasteners, screws and/or roof mastic are unacceptable and will be rejected. System
configuration only allows for exposed fasteners at panel overlap (if required and approved
c. DryDek by IMETCO of Norcross, GA
by architect) and trim details (as per manufacturer’s guidelines).
2.5 MISCELLANEOUS METAL FRAMING
3) Panels must be furnished in continuous lengths from ridge to eave with no overlaps unless
AS REQUIRED approved by architect.
A. Miscellaneous Metal Framing, General: ASTM C645, cold-formed metallic-coated steel sheet, ASTM Delete the following section if curved panels are not applicable to this project. Mechanical curving
A653, G90 (Z275) hot-dip galvanized. of panels insures quality and can help to prevent excessive oil canning, clip binding, and panel
AS REQUIRED buckling. Please contact an IMETCO sales representative for more information regarding curved
B. Hat-Shaped, Rigid Furring Channels: panel applications.*
1. Nominal Thickness: As required to meet performance requirements 4) Curved panels shall be mechanically curved to the exact radius of each curved roof area.
Panels may be mechanically curved in the factory or on site. Curving must be performed
2. Depth: [As indicated] [7/8 inch (22 mm)] [1-1/2 inches (38 mm)].
with the panel manufacturer’s curving machine and operated by the manufacturer’s full
3. Top flange: 1-1/8” (28 mm) minimum. time trained and experienced technician. Flat panels conformed to the roof shape are not
Retain first paragraph below for metal roof panels installed over unfaced board insulation. acceptable and will be rejected.
C. Z-Shaped Furring: With slotted or nonslotted web, flanges of 1-5/8 inches (41 mm) minimum and depth Delete the following section if tapered (wedge shape) panels are not applicable to this project.
as required to fit insulation thickness indicated. 5) Tapered Panels: Tapered panels shall be factory formed from a single piece of metal.
1. Nominal Thickness: As required to meet performance requirements, but not less than 18 gauge Tapered panels formed from multiple pieces of joined metal are unacceptable.
(1.09 mm). c. Seam must be 2-3/8” (60 mm) minimum height for added strength for negative pressures and
D. Fasteners for Miscellaneous Metal Framing: Of type, material, size, corrosion resistance, holding power, must have symmetrical design. Integral, asymmetrical seams are not acceptable.
and other properties required to fasten miscellaneous metal framing members to substrates. Portable rollformers are light duty machines with fewer forming stations than manufacturers’ factory
2.6 MISCELLANEOUS MATERIALS equipment. IMETCO suggests avoiding the use of these machines in all circumstances. Portable
A. Concealed fasteners: Corrosion resistant steel screws, #10 minimum diameter x length appropriate rollformers can induce significant oil canning and other poor performance and aesthetic qualities in
for substrate, hex washer head or pancake head. Use self-drilling, self-tapping for metal substrate or the panels. For jobs which require panel lengths in excess of shipping limitations (45 feet to 80 feet,
A-point for plywood substrate. depending on location), IMETCO recommends full length panels (no end laps or splices) formed on site
by full size factory-type equipment, and operated by a full-time experienced technician. Choose one
B. Exposed fasteners: 3xx series stainless steel screws (cadmium or zinc coatings are not acceptable) with
of the following two subparagraphs to prelude the use of site formed panels or to specify acceptable
neoprene sealing washer, or 1/8-inch- (3-mm-) diameter stainless steel rivets.
quality standards for site formed panels.
2.7 STANDING-SEAM METAL ROOF PANELS
d. Site Formed Panels: Bidder will not be allowed to supply panels formed at the job-site on
A. General: Provide factory-formed metal roof panels designed to be installed by lapping and portable rollformers; metal panels must be factory pre-manufactured and engineered for this
interconnecting raised side edges of adjacent panels with joint type indicated and mechanically project.
attaching panels to supports using concealed clips in side laps. Include clips, cleats and accessories
e. Site Formed Panels: Panels in excess of shippable length shall be formed on-site. Site formed
required for weathertight installation.
panels shall meet each of the following requirements:
1. Steel Panel Systems: Unless more stringent requirements are indicated, comply with ASTM E 1514.
1) Panels shall be formed on heavy duty factory type rollformers with no fewer than 16
2. Aluminum Panel Systems: Unless more stringent requirements are indicated, comply with ASTM E forming stations to improve quality and minimize oil canning.
1637.
2) Panels shall be of identical profile and characteristics as factory formed panels and
B. Vertical-Rib, Standing-Seam Metal Roof Panels with separate mechanically field crimped batten specimens used as the basis of performance tests.
seam cap: Formed with vertical ribs at panel edges, pencil beads and an intermediate stiffening rib
3) Sealant shall be factory applied in a separate factory formed snap on cap. Site/field applied
symmetrically spaced between ribs; designed for 2-direction installation by mechanically attaching
seam sealant is unacceptable. Seam caps may be shipped in 45 feet (11.4 m) or less length
panels to supports using concealed clips located under one side of panels and engaging opposite edge
and lap spliced over full length panels in accordance with manufacturer’s system details.
of adjacent panels, attaching a separate batten seam cap and mechanically seaming panels together.
4) Site rollforming equipment shall be owned and maintained by the panel manufacturer
1. Basis-of-Design System: Panel shall be IMETCO Series 300 (S300) roof panel system as
and operated by the panel manufacturer’s trained full time experienced technician. The
manufactured by Innovative Metals Company, Inc. (IMETCO), Norcross, Georgia, telephone 1-800-
installer must provide additional personnel to handle raw materials and finished product
646-3826:
as necessary.
2. Alternate manufacturers are subject to full compliance with specification requirements, and shall be
Select the type of Anchor Clip required for this project. Most steel panel systems will require galvanized
submitted for approval as follows:
steel clips; Use stainless steel clips for aluminum panel systems.
a. Manufacturers not listed above must submit for approval, ten (10) days prior to bid date,
f. Concealed Standard Anchor Clips: Clips must be 16 gauge (1.4 mm) [galvanized steel] [stainless
each of the following: Manufacturer’s literature; certification of testing in accordance with
steel alloy 410] ONE (1) piece clip with projecting legs for additional panel alignment and
specification requirements and article 1.4; sample warranties in accordance with specification
provision for unlimited thermal movement in each direction along the longitudinal dimension.
article 1.10; installer qualifications in accordance with specification article 1.6, and a list of five
(5) similar projects in size and scope of work 1) Two-piece clips are NOT acceptable.
b. No substitutions will be permitted after the bid date of this project. 2) Clip design must isolate sealant in panel cap from clip to insure that no sealant damage
occurs from the clip during expansion and contraction.
Retain one of the following two paragraphs to specify the appropriate material type and sheet thickness for
this project. 3) Clip must maintain a clearance of a minimum of 3/8” (9.5 mm) between panel and
substrate for proper ventilation to help prevent condensation on underside of panel and
3. Material: Zinc-coated (galvanized) steel sheet, [0.023-inch (0.56-mm)] [0.029-inch (0.71-mm)]
eliminate the contact of panel fastener head to panel.
[0.034-inch (0.86-mm)] nominal thickness. See 2.1 for finishes and color selection.
g. Seam cap: Snap-on cap shall be a minimum of 1-inch- (25-mm-) wide “T” shaped of
4. Material: Aluminum sheet, [0.032 inch (0.81 mm)] [0.040 inch (1.02 mm)] [0.050 inch (1.27 mm)]
continuous length up to 45 feet (11.4 m) according to job conditions and field seamed by
thick. See 2.1 for finishes and color selection.
means of manufacturer’s standard seaming machine.
5. Characteristics:
1) Cap shall be designed to receive two (2) beads of hot applied, high viscosity, pressure
a. The same panel profile from a single manufacturer shall be used for ALL standing seam roof sensitive adhesive with high heat resistance during manufacturing which will not come in
areas. contact with the anchor clip.
2) In all cases, seam caps shall be factory formed to insure quality and precision in the process
of sealant application.
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