Cover Sheet
INTERNATIONAL ASSOCIATION OF PLUMBING
AND MECHANICAL OFFICIALS, UNIFORM EVALUATION SERVICES
EVALUATION CRITERIA
FOR
COMPOSITE NON-COMBUSTIBLE SHEATHING AND SHEET STEEL
FOR USE AS FLOOR AND ROOF PANELS
EC 012-2012
Posted for public commenting on 11/29/2012 thru 12/28/2012

INTERNATIONAL ASSOCIATION OF PLUMBING
AND MECHANICAL OFFICIALS, UNIFORM EVALUATION SERVICES
EVALUATION CRITERIA
FOR
COMPOSITE NON-COMBUSTIBLE SHEATHING AND SHEET STEEL
FOR USE AS FLOOR AND ROOF PANELS
EC 012-2012
1.0 INTRODUCTION
1.1 Purpose.
This Evaluation Criteria establishes requirements for the use of non-combustible sheathing adhered to sheet steel as structural and diaphragm floor and roof sheathing. Products so evaluated shall be recognized in an IAPMO-ES evaluation report under the 2012, 2009 and 2006
International Building Code® (IBC), 2012, 2009 and 2006 International Residential Code® (IRC) and the 2010 California Building Code® (CBC). Basis of recognition is IBC Section 104.11, IRC Section
R104.11 and CBC Section 104.11.
1.2 Scope.
This Evaluation Criteria is applicable to floor and roof systems that support minimum design loads for building and other structures, provide fire-resistance, control sound transmission and resist thermal transmittance. Composite panels consist of non-combustible sheathing adhered to sheet steel panels that are fastened to cold-formed steel construction with steel self-drilling tapping screws or pneumatic pins.
1.3 Definitions. Following terms shall have the meaning as indicated. Terms not defined in this
Evaluation Criteria shall have the ordinary accepted meaning for the context intended.
Non-combustible sheathing is a proprietary sheet product formed from a composition of one or more of the following ingredients: magnesium oxide, magnesium chloride, cement, sand, lime, nylon, fiberglass and other types of mesh material, a binding agent, specialized additives, wood shavings, recycled board scraps, gypsum, adhesive or water. Panels are normally produced in 4 foot widths and 4, 8, 9, 10 and 12 foot lengths in thicknesses from 1/8 to 1 inch (3 mm to 24 mm).
Pneumatic pin is a forced-entry nail-like fastener designed to attach one material to another, characterized by a round (smooth or knurled) steel-wire shank with an upset head at one end and a point at the other end of the shank. Pins are typically hardened for penetrating steel and installed with a power tool reliant on compressed air or other gas.
Self-drilling tapping screw is an externally threaded fastener with the ability to drill its own hole and form or cut its own internal mating threads without deforming its own threads or breaking during assembly.
2.0 REFERENCED STANDARDS
Standards shall be applied consistent with the specific edition of the code(s) for which the Evaluation
Report is prepared unless otherwise approved by IAPMO-UES.
2.1 American Iron and Steel Institute
AISI Cold Formed Steel Design Manual, 2008 edition.
AISI Cold Formed Steel Design Manual, 2002 edition.
AISI S100-07 North American Specifications for the Design of Cold-Formed Steel Structural Members with Supplement No. 2.
AISI/COS/NASPEC 2001, AISI Standard/North American Specification for the Design of Cold-Formed
Steel Structural Members, 2001 edition with the 2004 Supplement.
AISI S200-07 North American Standard for Cold-Formed Steel Framing-General Provisions.

AISI S213-07 North American Standard for Cold-Formed Steel Framing-Lateral Design.
AISI S90402/08 Standard Test Method for Determining the Tensile and Shear Strength of Screws,
Part VI, AISI Manual, 2002/2008, Cold-Formed Steel Design.
AISI S90502/08 Test Methods for Mechanically Fastened Cold-Formed Steel Connections, Part VI,
AISI Manual, 2002/2008, Cold-Formed Steel Design.
AISI S907-02/08 Test Standard for Cantilever Test Method for Cold-Formed Steel Diaphragms, Part
VI, AISI Manual, 2002/2008, Cold-Formed Steel Design.
2.2 American Society of Mechanical Engineers
ANSI/ASME B18.6.4-98, Standard Specification for Thread Forming and Thread-Cutting Screws.
ANSI/ASME B18.18-11 Quality Assurance for Fasteners..
2.3 American Society of Testing and Materials
ASTM A 370-12 Standard Test Method for Steel Sheets.
ASTM A 510-11 Standard Specification for General Requirements for Wire Rods and Coarse Round
Wire, Carbon Steel..
ASTM A 924-10a Standard Specification for General Requirements for Steel Sheet, Metallic-Coated by the Hot-Dip Process.
ASTM A 1003-12 Standard Specification for Steel Sheet, Carbon, Metallic- and Nonmetallic- Coated for Cold-Formed Framing Members.
ASTM B 177-11 Standard Practice for Operating Salt Spray (Fog) Apparatus.
ASTM B 633-11 Standard Specification for Electrodeposited Coatings of Zinc on Iron and Steel.
ASTM C 954-11 Standard Specification for Steel Drill Screws for the Application of Gypsum Panel
Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in
Thickness.
ASTM C 955-11c Standard Specification for Load-Bearing (Transverse and Axial) Steel Studs,
Runners (Tracks), and Bracing or Bridging for Screw Application of Gypsum Panel Products and
Metal Plaster Bases.
ASTM C 1002-07 Standard Specification for Steel Self-Piercing Tapping Screws for the Application of
Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs.
ASTM C 1185-08 Standard Test Methods for Sampling and Testing Non-Asbestos Fiber-Cement Flat
Sheet, Roofing and Siding Shingles, and Clapboards
ASTM C 1513-12 Standard Specification for Steel Tapping Screws for Cold-Formed Steel Framing
Connections.
ASTM E 72-10 Standard Test Methods of Conducting Strength Tests of Panels for Building
Construction.
ASTM E 84-12b Standard Test Method for Surface Burning Characteristics of Building Materials.
ASTM E 90-09 Standard Test Method for Laboratory Measurement of Airborne Sound Transmission
Loss of Building Partitions and Elements.
ASTM E 119-12a Standard Test Methods for Fire Tests of Building Construction and Materials.
ASTM E 13612 Standard Test Method for Behavior of Materials in a Vertical Tube Furnace at 750°C.
ASTM E 413-10 Classification for Rating Sound Insulation.
ASTM E 455-11 Standard Method for Static Load Testing of Framed Floor or Roof Diaphragm
Constructions for Buildings.
ASTM E 492-09 Standard Test Method for Laboratory Measurement of Impact Sound Transmission
Through Floor-Ceiling Assemblies Using the Tapping Machine.

ASTM E 661-03(2009) Standard Test Method for Performance of Wood and Wood-Based Floor and
Roof Sheathing Under Concentrated Static and Impact Loads.
ASTM E 989-06 Standard Classification for Determination of Impact Insulation Class (IIC).
ASTM E 1190-11 Standard Test Methods for Strength of Power-Actuated Fasteners Installed in
Structural Members.
ASTM E 2322-03 (2009) Standard Test Method for Conducting Traverse and Concentrated Load
Tests on Panels used in Floor and Roof Construction.
ASTM F 1470-09 Practice for Fastener Sampling for Specified Mechanical Properties and
Performance Inspection.
ASTM F 1941-10 Specification for Electrodeposited Coatings on Threaded Fasteners (Unified Inch
Screw Threads (UN/ UNR)).
2.4 Society of Automotive Engineers
SAE J78-98 Steel Self-Drilling Tapping Screws.
SAE J933-05 Mechanical and Quality Requirements for Tapping Screws.
3.0 BASIC INFORMATION
3.1 Roof and Floor Assembly Description.
Descriptions of assemblies shall include all components and provide the following information for each component as shown below where applicable:
3.1.1 Self-Drilling Tapping Screw a. Applicable screw fastener specification standard and any dimensional, material or performance deviations from the standard with analysis of how these deviations affect structural performance of the screw. b. Brand name, model number, nominal screw size and point for each type of screw included in the floor or roof assembly and where used. c. Drawings and details noting dimensions, including tolerances, for each screw size, configuration, and head and point style and identification markings. d. Raw material specifications. e. Final product specifications, including case and core hardness, ductility, torsional strength, drilldrive performance and drill capacity. f. Specifications for protective coatings. g. Limits on steel connected by the screw, including minimum and maximum base steel thickness and mechanical properties. h. Screw strength in pull-out, pull-over, tension and shear. i. Washer size and thickness if used. j. Installation instructions that show required fastener spacing, depth of penetration and edge distances. k. Packaging and product identification information.
3.1.2 Pneumatic Pin a. Manufacturer’s name, trade name, brand name and the power-driven pin catalog number. b. Manufacturing process. c. Dimensioned (drawn-to-scale) figures and production drawings with permitted manufacturing tolerances that shows head diameter, shape, thickness, pointed end, shank diameter, style and length. d. Steel wire specifications and physical properties, such as tensile strength, hardness and protective coatings. e. Limits on steel connected by the screw, including minimum and maximum base steel thickness and mechanical properties. f. Pin strength in tension and shear. g. Washer size and thickness (if used). h. Alignment tips (if used).

i. Installation instructions including minimum fastener spacing, depth of penetration and end distances. j. Packaging and product identification information.
3.1.3 Non-Combustible Sheathing a. Component ingredients by weight proportions and fingerprinting of compound for test verification. b. Thickness, width and length of sheets with dimensional tolerances. c. Physical properties of flexural strength, freeze-thaw stability, moisture movement, water absorption, compression indentation, nail pull through, falling ball impact, shear bond strength, surface burning characteristics, fastener holding, humidified deflection and density. d. Manufacturer and product name.
3.1.4 Panel Adhesive a. Chemical and physical properties of non-structural adhesive used to bond sheet steel to noncombustible sheathing as defined within an approved IAPMO Quality Control Manual.
3.1.5 Flat Sheet Steel (Adhered to Non-Combustible Sheathing) a. Standard specification number and grade (designated minimum yield strength) of steel. b. Chemical, mechanical and coating properties. c. Ratio of tensile strength to yield stress. d. Base sheet steel thickness exclusive of coatings.
3.1.6 Cold-Formed Steel Construction of Supporting Members a. Standard specification number and grade (designated minimum yield strength) of steel used. b. Chemical, mechanical and coating properties. c. Ratio of tensile strength to yield stress. d. Base steel thickness exclusive of coatings. e. Four-part product designator for joists and rafters that identifies web depth, flange width, style and thickness.
3.1.7 Roof and Floor Assemblies a. Details, drawings and cross sections illustrating tested assemblies. b. Fastener spacing, depth of penetration and edge distances. c. Description of method of packaging and field identification as an approved product. d. Storage, material safety and handling requirements. e. Allowable uniform and concentrated gravity loads for roof and floor sheathing. f. Allowable shear resistance, aspect ratios and design deflections as a horizontal diaphragm. g. Span rating and ability for use as combined sheathing and underlayment. h. Range of assemblies tested for variations in construction methods that affect tested outcomes for structural, fire, thermal or sound control properties. i. Optional characteristics of fire-resistance rating, coefficient of thermal transmittance (U-factor), sound transmission class (STC) and impact insulation class (IIC) of any related assemblies.
3.2 Test Reports. Test reports shall include the all of the applicable information required in Section 3.1, the applicable test standard, ES-025 and the following: a. Test standard with date of issue and an explanation of any deviation from the standard. b. Description of failure mode. c. Interpretation of test results including acceptance or rejection where appropriate. d. Method and amount of product sampling from the manufacturing site. e. Identity of laboratory personnel who witnessed and verified construction of the assemblies. f. Accreditation certificate showing laboratory is accredited as complying with ISO/IEC Standard
17025 by the International Accreditation Service (IAS) or by any other accreditation body that is a signatory to the International Laboratory Accreditation Cooperation (ILAC) Mutual
Recognition Arrangement (MRA) for the testing reported.

3.3 Engineering Assessment. Structural performance properties shall be established by a registered design professional. Such properties include nominal uniform, concentrated and in-plane shear load capacities, appropriate factors of safety, scaling of results to similar materials and for any overstrength of tested materials that affects outcomes. Assessment shall establish the resulting structural design values for use with Allowable Stress Design (ASD), Load and Resistance Factor Design (LFRD) and Limit States
Design (LSD) and the appropriate limits and exceptions based on analysis and range of the test results.
Assessment shall also establish an equation to determine diaphragm deflection with contributing terms appropriate for the specific products and influence of aspect ratio ranges, framing member spacing, thickness of steel in flat sheet and framing members, type and location of fasteners, fastener slip and beam characteristics of the horizontal diaphragm. Such equation shall reasonably fit the test data.
4.0 TESTING AND PERFORMANCE REQUIREMENTS
4.1 Fasteners : Self-drilling tapping screws and pneumatic pins shall meet the requirements of this section.
4.1.1 Self-drilling tapping screws.
Screws shall demonstrate compliance with or equivalence to one of the following test standards: ASTM C954, ASTM C1002 or ASTM C1513. Screws shall be listed in a product evaluation report from an ISO 65 approved certification agency or other nationally recognized certification program accepted by IAPMO Uniform Evaluation Services.
4.1.2 Pneumatic pins.
Pneumatic pins shall demonstrate compliance with the proprietary specifications as verified by qualification tests performed at the manufacturing location that are part of an ongoing quality control program. Pins shall be listed in a product evaluation report from an ISO 65 approved certification agency or other nationally recognized certification program accepted by IAPMO
Uniform Evaluation Services.
4.2 Non-Combustible Sheathing. Non-combustible sheathing shall demonstrate compliance with the proprietary specifications as verified by qualification tests performed at the manufacturing location that are part of an ongoing quality control program. As an alternative, testing may establish the physical properties shown in Section 3.1.3 of this Evaluation Criteria. Non-combustible sheathing shall be listed in a product evaluation report from an ISO 65 approved certification agency or other nationally recognized certification program accepted by IAPMO Uniform Evaluation Services.
4.3 Flat Sheet Steel (Adhered To Non-Combustible Sheathing).
Flat sheet steel shall demonstrate compliance with the specified standard and grade for which recognition is sought. Testing may be conducted by the mill or a recognized independent testing agency. Where the number of steel coupon specimens is not noted in the specific standard, a minimum of three steel coupon specimens shall be tested to show compliance with the appropriate standard and to determine the minimum uncoated steel thickness and strength. Steel tension tests and elongation calculations shall be performed in accordance with ASTM A370.
4.4 Cold-Formed Steel Construction of Supporting Members.
Cold-formed steel support members shall demonstrate compliance with the specified standard and grade for which recognition is sought as verified by qualification tests performed at the manufacturing location that are part of an ongoing quality control. Tests shall verify steel thickness, yield and tensile strengths, total elongation, chemical composition and protective coating type and thickness. Light-frame supporting members shall be listed in a product evaluation report from an ISO 65 approved certification agency or other nationally recognized certification program accepted by IAPMO Uniform Evaluation Services.
4.5 Structural Performance. Floor and roof assemblies shall be tested to measure and determine the following properties for each variation in components that significantly affects test results as shown in the engineering assessment:
4.5.1 Concentrated load capacity. Panels shall be tested in accordance with ASTM E 72-10 for concentrated static loads before and after impact loading.
4.5.2 Uniform load capacity. Panels shall be tested in accordance with ASTM E 72-10 for uniform load capacity.

4.5.3 Fastener Strength. Fasteners not approved in a recognized standard shall be tested for tension and shear strength in accordance with AISI S904-08. Strength of fasteners in composite panel shall be tested in accordance with AISI S905-08.
4.5.4 Diaphragm Shear Strength and Stiffness. Diaphragm testing shall be performed in accordance with AISI S907-08. Scope of testing shall bound the range of variable component values for panel thickness (sheet steel and/non-combustible sheathing); spacing and base steel thickness of steel framing members; type, spacing and minimum edge distance of sheathing fasteners; and the orientation of panels for which recognition is sought in the evaluation report.
4.6 Fire-Resistance Ratings (Optional). Values for fire-resistance-rated roof and floor-ceiling assemblies shall be established by tests conducted in accordance with ASTM E 119 or UL 263.
4.7 Sound Controlled Assemblies (Optional). Values for sound controlled assemblies shall be established by tests conducted in accordance with ASTM E 90 and ASTM E 413 for airborne sound insulation (STC) and ASTM E 492 and ASTM E 989 for impact sound insulation (IIC).
5.0 QUALITY CONTROL
5.1
Quality documentation complying with the IAPMOES Minimum Requirements for Listee’s Quality
Assurance System (IAPMO ES-010) shall be submitted.
5.2
IAPMO-ES approved inspections of manufacturing facilities are required for this product.
6.0 EVALUATION REPORT RECOGNITION
Evaluation reports shall include the following information:
6.1
Basic information required by Section 3.1 of this Evaluation Criteria, including assembly and component description, installation procedures and packaging and identification information.
6.2
Structural design values for use with Allowable Stress Design (ASD), Load and Resistance Factor
Design (LFRD) and Limit States Design (LSD) and the appropriate limits and exceptions. Values shall address uniform, concentrated and in-plane shear load capacity for each assembly type proposed.
6.3
Equation to determine diaphragm deflection with contributing terms appropriate for the specific products and influence of aspect ratios, framing member spacing, thickness of steel in flat sheet and framing members, type and location of fasteners, fastener slip and beam characteristics of the horizontal diaphragm.
6.4
Statement that diaphragm analysis shall comply with applicable requirements in Chapters 16, 17, and 23 of the IBC.
6.5
Design procedures for diaphragm penetrations and openings and selection of appropriate types of framing support members.
6.6
Surface burning, roof classification and combustibility characteristics.
6.7
Optional fire-resistance rating and/or sound control properties if tested.