TO: PARTIES INTERESTED IN RAISED-DECK SYSTEMS … · 2018-04-18 · International Building Code® (IBC); ASTM D638-14; ASTM D1037-06a, ASTM D1761-88 (2000)ε1; ASTM E661-03; ASTM

April 18, 2018 TO: PARTIES INTERESTED IN RAISED-DECK SYSTEMS INSTALLED OVER

ROOF ASSEMBLIES OR EXTERIOR SUPPORTING STRUCTURES SUBJECT: Proposed Acceptance Criteria for Raised-deck Systems Installed Over Roof

Assemblies or Exterior Supporting Structures, Subject AC423-0618-R3 (DW/YM)

Hearing Information: Tuesday, June 5, 2018 8:00 am Hilton Los Angeles Airport 5711 West Century Boulevard Los Angeles, CA 90045 (310) 410-4000

Dear Colleague: You are invited to comment on a proposed new acceptance criteria, Raised-deck Systems Installed Over Roof Assemblies or Exterior Supporting Structures (AC423), which will be discussed at the Evaluation Committee hearing noted above. AC423 had initially gone before the Evaluation Committee back on February 2, 2010, and was put on further study at that time. The further study letter, dated February 26, 2010, identified the following items as to why it was placed under further study: 1. Installation of the raised-deck system over a roof assembly;

2. Wind Resistance;

3. Seismic Resistance.

After the February 2010 Evaluation Committee hearing, interest in the development of AC423 disappeared since the original proponent of this criteria decided not to continue. We currently have four proponents who are interested in restarting the development of this criteria. The proposed criteria addresses those items stemming from the further study letter and provides additional guidelines for the evaluation of raised-deck systems used over roof

AC423-0618-R3

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assemblies or exterior supporting structures to provide a level walking surface. The raised-deck system is comprised of pedestrian deck panels/pavers and plastic pedestals, which can be fixed or height-adjustable. The proposed criteria was also posted on the October 2017 Alternative Criteria development process agenda for public comment only. We received one public comment from Jodi Thomas of Dow Building Solutions. After review and consideration, it was determined that Ms. Thomas’ comments will need to be addressed under a different proposed new acceptance criteria since her comments are based on a building material product which is different than what is being proposed in AC423. The proposed criteria has been substantially revised from the criteria which was presented during the October 2017 alternate criteria posting. The following notable revisions were based on additional consideration by ICC-ES staff and input by a proponent: 1. Revise Section 1.3 to include 2012 International Building Code® (IBC); ASTM D638-14;

ASTM D1037-06a, ASTM D1761-88 (2000)ε1; ASTM E661-03; ASTM G154-06; ASTM G155-05a; and DOC PS 1.

2. Revise definitions mentioned in Section 1.4; and included new Section 1.4.4 to define Accessory Components.

3. Revise Section 2.1.1.3 to include new section regarding withdrawal (pull-out and pull-through, as applicable) and lateral resistance of mechanical fasteners into plastic material.

4. Revise Section 2.1.2 to include minimum requirements for installation instructions. 5. Significant revisions to Section 3.0 to include new test and performance requirements of

pedestals (3.1); deck panels/pavers (3.2); mechanical fastener testing (3.3); structural requirements for raised-deck systems (3.4); wind resistance (3.5); seismic resistance (3.6); roof fire classifications for raised-deck systems (3.7); and adhesives (optional) (3.8).

6. Revise Section 4.0 to clarify test methods of uniform load testing on panels/pavers supported by pedestals (4.1); foot traffic concentrated static and concentrated following impact (4.2); axial load testing on pedestals (4.3); adhesive testing (optional) (4.4); and dynamic load testing (optional) for wind and seismic consideration (4.5).

7. Add new requirement in Section 6 to address drainage of existing roof structure/assembly or exterior supporting structure after installation of the raised-deck system.

Should the committee approve the proposed criteria, the ICC-ES staff will not recommend a mandatory compliance date, since this is a new criteria and new report applications will need to show compliance with the approved criteria.

AC423-0618-R3

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You are invited to submit written comments on this or any other agenda item, or to attend the Evaluation Committee hearing and present your views in person. If you wish to contribute to the discussion, please note the following: 1. Regarding written comments and presentations:

a. You should submit these via e-mail to [email protected] or by U.S. mail to the Western

Regional (Brea) office to be received by the applicable due date.

b. Comments are to be received by May 9, 2018. These written comments will be forwarded to the committee before the meeting, and will also be posted on the ICC-ES web site shortly after the deadline for submission. Written comments that are not submitted by this deadline will not be considered at the meeting.

c. Rebuttal comments, from the proponent noted in this letter, are to be received by May

18, 2018. They will be forwarded to the committee before the meeting, and will also be posted on the ICC-ES web site shortly after the deadline for submission. Written rebuttal comments that are not submitted by the deadline will not be considered at the meeting.

d. Visual presentations, in PowerPoint format only, are to be received by May 30, 2018.

These will be forwarded to the committee before the meeting, and will also be posted on the ICC-ES web site shortly after the deadline for submission. Presentations that are not submitted by the deadline cannot be viewed at the meeting. Note: Videos will not be posted on the web site. Presentations will be retained with other records of the meeting. It is the presenter’s responsibility, prior to the presentation, to verify with ICC-ES staff that the presentation files have been transferred satisfactorily to the presentation computer.

e. ICC-ES will post to the web site, on June 1, 2018, memos by the ICC-ES staff,

responding to the previously received public comments.

f. If you miss the deadlines for submission of written comments and visual presentations, your verbal comments can be presented at the meeting.

g. Proposed criteria, written public comments, visual presentations, and responses by ICC-ES staff will be available at the meeting on a limited number of CDs for uploading to computers. ICC-ES will not provide any printed copies.

2. Regarding verbal comments and presentations:

Please plan to speak for not more than ten minutes. As noted above, visuals must be in PowerPoint format. We have a computer, projector, and screen available to those making visual presentations. It is the presenter’s responsibility, prior to their presentation,

mailto:[email protected]

AC423-0618-R3

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to verify with ICC-ES staff that presentation files have been satisfactorily transferred to the presentation computer.

3. Keep in mind that all materials submitted for committee consideration are part of the

public record and will not be treated as confidential. It is the presenter’s responsibility to certify to ICC-ES staff that no materials infringe copyright.

4. Please do not communicate with committee members before the meeting about any items

on the agenda. We appreciate your interest in the work of the Evaluation Committee. If you have any questions, please contact me at (800) 423-6587, extension 3272, or Yamil Moya, Senior Staff Engineer, at extension 3691. You may also reach us by e-mail at [email protected].

Yours very truly, Danny Wong, P.E. Staff Engineer

DW:YM/raf Encl. cc: Evaluation Committee

www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council

®

PROPOSED ACCEPTANCE CRITERIA FOR

RAISED-DECK SYSTEMS INSTALLED OVER ROOF ASSEMBLIES OR EXTERIOR SUPPORTING STRUCTURES

AC423

Proposed April 2018

PREFACE Evaluation reports issued by ICC Evaluation Service, LLC (ICC-ES), are based upon performance features of the International family of codes. (Some reports may also reference older code families such as the BOCA National Codes, the Standard Codes, and the Uniform Codes.) Section 104.11 of the International Building Code® reads as follows:

The provisions of this code are not intended to prevent the installation of any materials or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety.

ICC-ES may consider alternate criteria for report approval, provided the report applicant submits data demonstrating that the alternate criteria are at least equivalent to the criteria set forth in this document, and otherwise demonstrate compliance with the performance features of the codes. ICC-ES retains the right to refuse to issue or renew any evaluation report, if the applicable product, material, or method of construction is such that either unusual care with its installation or use must be exercised for satisfactory performance, or if malfunctioning is apt to cause injury or unreasonable damage.

Acceptance criteria are developed for use solely by ICC-ES for purposes of issuing ICC-ES evaluation reports

Copyright © 2018 ICC Evaluation Service, LLC. All rights reserved.

AC423-0618-R3 Page 2 April 2018

PROPOSED ACCEPTANCE CRITERIA FOR RAISED-DECK SYSTEMS INSTALLED OVER ROOF ASSEMBLIES OR EXTERIOR SUPPORTING

STRUCTURES

1.0 INTRODUCTION 1

1.1 Purpose: The purpose of this acceptance criteria is to establish requirements for raised-2

deck systems installed over roof assemblies or exterior supporting structures to be recognized 3

in an ICC Evaluation Service, LLC (ICC-ES), evaluation report under the 2015 and 2012 4

International Building Code® (IBC). Bases of recognition are IBC Section 104.11. 5

This criteria specifies the test methods, performance and installation requirements, for 6

raised-deck systems that are to be recognized by ICC-ES, since such requirements are not 7

addressed by the code. 8

1.2 Scope: This criteria is applicable to raised-deck systems installed over roof assemblies 9

or exterior supporting structures. Each raised-deck system consists of deck panels/pavers 10

supported by pedestals placed directly on roof assemblies or exterior supporting structures, to 11

provide a level walking surface. Pedestals can be adjusted to various heights or installed at a 12

fixed height. The pedestals need not be mechanically or adhesively attached to the 13

supporting structure. The raised-deck system comprised of the deck panels/pavers and 14

pedestals must be restrained on all sides against horizontal movement using a perimeter-15

restraining system and along any ramps and/or walkway areas. 16

1.3 Codes and Referenced Standards: Where standards are referenced in this criteria, 17

these standards shall be applied consistently with the applicable code upon which compliance 18

is based. 19

1.3.1 2015 and 2012 International Building Code® (IBC), International Code Council. 20

PROPOSED ACCEPTANCE CRITERIA FOR AC423-0618-R3 RAISED-DECK SYSTEMS INSTALLED OVER ROOF ASSEMBLIES Page 3 OR EXTERIOR SUPPORTING STRUCTURES April 2018

1.3.2 ASCE/SEI 7-10, Minimum Design Loads for Buildings and Other Structures, with 21

Supplement No. 1 (-10 for the 2012 IBC), American Society of Civil Engineers/Structural 22

Engineering Institute. 23

1.3.3 ASTM D638-14, Standard Test Method for Tensile Properties of Plastics, ASTM 24

International. 25

1.3.4 ASTM D790-03, Standard Test Methods for Flexural Properties of Unreinforced and 26

Reinforced Plastics and Electrical Insulating Materials, ASTM International. 27

1.3.5 ASTM D1037-06a, Standard Test Methods for Evaluation Properties of Wood-base 28

Fiber and Particle Panel Materials, ASTM International. 29

1.3.6 ASTM D1413-07e1, Test Method for Wood Preservatives by Laboratory Soil-Block 30

Cultures, ASTM International. 31

1.3.7 ASTM D1761-88 (2000)ε1, Test Methods for Mechanical Fasteners in Wood, ASTM 32

International. 33

1.3.8 ASTM D2017-05, Test Method for Accelerated Laboratory Test of Natural Decay 34

Resistance of Woods, ASTM International. 35

1.3.9 ASTM D3345-08, Standard Test Method for Laboratory Evaluation of Wood and Other 36

Cellulosic Materials for Resistance to Termites, ASTM International. 37

1.3.10 ASTM E84-2013(-08a for the 2012 IBC), Test Methods for Surface Burning 38

Characteristics of Building Materials, ASTM International. 39

1.3.11 ASTM E108-2011(-07a for the 2012 IBC), Test Methods for Fire Tests of Roof 40

Coverings, ASTM International. 41


1.3.12 ASTM E661-03, Standard Test Method for Performance of Wood and Wood-42

Based Floor and Roof Sheathing Under Concentrated Static and Impact Loads, ASTM 43

International. 44

1.3.13 ASTM E2322-03 (Reapproved 2015), Standard Test Method for Conducting 45

Transverse and Concentrated Load Tests on Panels Used in Floor and Roof Construction, 46

ASTM International. 47

1.3.14 ASTM G154-06, Standard Practice for Operating Fluorescent Ultraviolet (UV) 48

Lamp Apparatus for Exposure of Nonmetallic Materials, ASTM International. 49

1.3.15 ASTM G155-05a, Standard Practice for Operating Xenon Arc Light Apparatus for 50

Exposure of Non-Metallic Metals, ASTM International. 51

1.3.16 AWPA E1-06, Standard Test Method for Laboratory Evaluation to Determine 52

Resistance to Subterranean Termites, American Wood-Protection Association. 53

1.3.17 AWPA E10-07, Standard Test Method of Testing Wood Preservatives by 54

Laboratory Soil-Block Cultures, American Wood-Protection Association. 55

1.3.18 Recommended Test Procedures for Access Floors, Ceilings and Interior Systems 56

Construction, (CISCA), 2007. 57

1.3.19 PS 1-09, Structural Plywood, United States Department of Commerce. 58

1.3.20 PS 2-10, Performance Standard for Wood-Based Structural Use Panels, United 59

States Department of Commerce. 60

1.3.21 UL 723-08 (with Revisions through September 2010) (-08 for the 2012 IBC), 61

Standard for Test for Surface Burning Characteristics of Building Materials, Underwriters 62

Laboratories, LLC. 63


1.3.22 UL 790-04 (with Revisions through October 2008) (-04 for the 2012 IBC), Standard 64

Test Methods for Fire Tests of Roof Coverings, Underwriters Laboratories, Inc. 65

1.3.23 ICC-ES Acceptance Criteria for Sandwich Panel Adhesives (AC05). 66

1.3.24 ICC-ES Acceptance Criteria for Seismic Certification by Shake-table Testing of 67

Nonstructural Components (AC156). 68

1.4 Definitions: 69

1.4.1 Raised-deck System: An assembly installed over a roof assembly and/or exterior 70

supporting structure consisting of pedestrian deck panels/pavers mounted on pedestals using 71

other accessory components, and mechanical fasteners and/or adhesives as required by the 72

manufacturer for attaching deck panels/pavers to pedestals and other accessory components. 73

1.4.2 Pedestrian Deck Panels/Pavers: Pedestrian deck panels/pavers under this criteria 74

are manufactured from materials such as naturally durable wood and non-naturally durable 75

wood, ceramic, stone, or concrete and shall be suitable for exterior applications. The deck 76

panel/paver specifications must be included in the evaluation report. Evidence of compliance 77

with the applicable provisions in the code and the evaluation report shall be submitted to the 78

code official. 79

1.4.3 Pedestal: A fixed or adjustable-height support column composed of a plastic support 80

base, plastic vertical structural element, and a plastic load bearing top cap/surface. The 81

pedestal components must be manufactured under an approved quality control program. 82

1.4.4 Accessory Components: These components are used in the installation of 83

pedestals and deck panels/pavers of the raised-deck system. These components are made of 84

either plastic or metal material. These components may be used to provide lateral bracing of 85


the pedestals, vertical support, leveling the pedestal, and to restrain the deck panel/paver to 86

the top of the pedestal. 87

2.0 BASIC INFORMATION 88

2.1 General: The following information shall be submitted: 89

2.1.1 Product Description: 90

2.1.1.1 Deck Panels/Pavers: Complete information concerning materials, weight, 91

dimensions, specifications, and the manufacturing process. Specifications for cementitious 92

materials (e.g. concrete pavers) shall include 28-day compressive strength (fc’), impact 93

resistance, and density. 94

2.1.1.2 Pedestals: Components used in the supporting structure shall be defined. 95

Complete information concerning dimensions, specifications, manufacturer’s installation 96

instructions, and the manufacturing process of the pedestals shall be provided. 97

2.1.1.3 Connections: Connections (mechanical fasteners) shall be detailed or sufficiently 98

described. Fasteners used in the assembly shall be specified for system positioning (e.g. 99

panel/paver attachment to plastic top cap/surface). Information regarding the mechanical 100

fasteners shall be provided as follows: 101

a. Whether the fastener is a commodity fastener or a proprietary fastener. 102

b. Fastener name and designation, as applicable. 103

c. Fastener dimensions. 104

d. Withdrawal (pull-out and pull-through, as applicable) and lateral resistance of 105

mechanical fasteners into plastic material based on requirements described in Section 106

3.3 of this criteria. 107


e. For proprietary fasteners, provide the following: name of the manufacturer; 108

manufacturer’s model or catalog number; technical drawing showing the fastener 109

dimensions, including manufacturing tolerances; material specifications, including 110

chemical and mechanical properties and protective (corrosion) coating requirements. 111

2.1.1.4 Adhesives (Optional): Where recognition is sought for adhesives that are used 112

to adhere to either the pedestal to the panel/paver or to adhere the vertical structural element 113

of the pedestal to its support base and top cap, the type(s) of adhesives used shall be 114

described. Information shall cover commercial stock numbers, specifications, assembly 115

conditions, application instructions, pot life, storage temperature, and the minimum cure time 116

when applied. 117

2.1.2 Installation Instructions: Drawings or installation details, limitations, and a 118

description of how the product is to be installed. At a minimum, the instructions should indicate 119

the layout of the pedestals, maximum and minimum pedestal heights, perimeter restraint 120

details, panel/paver installation over pedestals and details on the repair and replacement of 121

pedestals and panel/pavers. 122

2.1.3 Packaging and Identification: A description of the method of packaging and 123

identifying of deck panel/pavers, pedestals, and accessory components. Identification 124

provisions shall include the manufacturer’s name, the product name, the manufacturing date, 125

the evaluation report number and the name or logo of the inspection agency. A copy of the 126

installation instructions, as packaged with the product, shall be submitted. 127

2.1.4 Field Preparation: A description of the methods for assembling the pedestals (base 128

support and top cap to vertical structural element), field-cutting and trimming pedestals and/ or 129


deck panel/pavers; adhesive preparation and placement; fastener placement; and list any 130

accessory components required for installation. 131

2.2 Testing Laboratories: Testing laboratories shall comply with Section 2.0 of the ICC-ES 132

Acceptance Criteria for Test Reports (AC85) and Section 4.2 of the ICC-ES Rules of 133

Procedure for Evaluation Reports. 134

2.3 Test Reports: Test reports shall comply with AC85. The test reports shall be in 135

sufficient detail to identify specimen properties. The testing agency shall verify and report 136

dimensions, weight, density, chemical formulation, treatment, moisture content and other 137

relevant physical characteristics of the major components. The testing laboratory shall also 138

verify and report the manner of installation. 139

2.4 Product Sampling: Sampling of the test specimens for tests under this criteria shall 140

comply with Sections 3.1 and 3.3 of AC85. 141

2.5 Qualification Test Plan: A qualification test plan shall be submitted to and approved by 142

ICC-ES staff prior to any testing being conducted. 143

3.0 TEST AND PERFORMANCE REQUIREMENTS 144

3.1 Pedestals: The following tests shall be conducted on representative samples of the 145

plastic material used in the Raised-deck system (such as the support base, top cap and 146

vertical structural element). Where indicated below, the requirements shall also apply to 147

accessory components used with the pedestals. Pedestal assembly manufacturers which only 148

provide the plastic support base and top cap, must also include recognition of the vertical 149

structural elements representative of the materials used in the tests in their quality control 150

documentation: 151


3.1.1 Plastic Tests for Pedestals and Accessory Components: Plastic materials used 152

in the production of pedestals and accessory components shall comply with the following 153

requirements IBC Section 2606.4, as shown in Sections 3.1.1.1 and 3.1.1.2 below: 154

3.1.1.1 The plastic material shall have a self-ignition temperature of 650F or greater when 155

tested in accordance with ASTM D1929 at the maximum thickness intended for use. 156

3.1.1.2 The plastic material shall have a smoke-developed index not greater than 450 157

where tested in the manner intended for use in accordance with ASTM E84 or UL723; or a 158

maximum smoke density rating not greater than 75 where tested in the thickness intended for 159

use in accordance with ASTM D2843 and shall conform to Class CC1 or CC2 when tested in 160

accordance with ASTM D635 at the thickness intended for use. 161

3.1.1.3 General Weathering Testing: Plastic materials used in the pedestal system 162

including accessory components shall comply with the requirements shown in Sections 163

3.1.1.3.1 thru 3.1.1.3.3. 164

3.1.1.3.1 General: Five specimens shall be exposed to ultraviolet light in accordance with 165

Section 3.1.1.2.3 of this criteria, and five specimens shall be held as control specimens. After 166

exposure, both the exposed specimens and the control specimens shall be tested in 167

accordance with ASTM D790 and/ or ASTM D638. 168

3.1.1.3.2 Ultraviolet Light Exposure: Exposure to ultraviolet light shall follow either 169

ASTM G154 or ASTM G155 practices for 2000-hours. 170

3.1.1.3.3 Conditions of Acceptance: Loss in flexural and/or tensile properties resulting 171

from the ultraviolet light exposure shall be +/-10% of the average strength of the control 172

specimens. If the change exceeds 10%, the pedestal’s allowable axial load determined in 173

Section 4.3 shall be further reduced by the amount in excess of 10%. 174


3.2 Pedestrian Deck Panels/Pavers Requirements: Deck panels/pavers, shall be 175

manufactured from durable materials, such as a naturally durable wood, ceramic, stone, or 176

concrete. In cases where the evaluation report holder only supplies the pedestal system, the 177

evaluation report must include a description of the panel/pavers used in the applicable 178

qualification tests of the raised-deck system and a statement indicating that the panels/pavers 179

used for specific projects must be installed to the satisfaction of the code official. For 180

recognition of wood deck panels/pavers not manufactured from wood considered a naturally 181

durable wood, as defined in IBC Section 2302, non-naturally durable wood deck panel/paver 182

materials will be subjected to the requirements in Section 3.2.2. 183

3.2.1 Ceramic, Stone, and Cementitious Panels/Pavers: 184

3.2.1.1 Impact Resistance: Each ceramic, stone, or cementitious panel/paver shall 185

demonstrate resistance to drop impact forces when installed in a raised-deck system 186

application in accordance with Section 8 of CISCA testing procedure with a minimum impact 187

weight of ten pounds. 188

3.2.1.1.1 Conditions of Acceptance: The panel/paver and support backer, if used, shall 189

be able to support the impact weight of ten pounds when tested in accordance with Section 190

3.2.1.1 without collapsing under its own weight. Examination of the panel/ paver specimen and 191

any support backer shall reveal impact resistance such that a tile which is tested until failure as 192

defined by Section 8 of the CISCA testing procedures does not collapse after impact under its 193

own weight when pedestal supported. 194

3.2.2 Non-Naturally Durable Wood Panels/pavers: 195

3.2.2.1 Fungal Decay Resistance: The wood material shall demonstrate resistance to 196

fungal decay in accordance with ASTM D1413, ASTM D2017, or AWPA E10. 197


3.2.2.1.1 Conditions of Acceptance: Examination of test blocks shall reveal decay 198

resistance equivalent to that of heartwood of naturally durable wood used in identical 199

applications, as determined by visual inspection and average weight loss. Naturally durable 200

woods are defined IBC Section 2302. 201

3.2.2.2 Termite Resistance: Testing in accordance with AWPA E1 or ASTM D3345 shall 202

be used for evaluation on resistance to termite attack of wood material. 203

3.2.2.2.1 Conditions of Acceptance: Visual inspection of the test specimens shall 204

demonstrate resistance to termite attack equivalent to that of preservative-treated wood or the 205

heartwood of naturally durable wood used in identical applications. 206

3.2.2.3 Surface-Burning Characteristics of Wood Panels/pavers: Wood Panel/pavers 207

shall have a minimum Class B flame-spread and smoke-developed indexes when tested in 208

accordance with ASTM E84 / UL 723 at the maximum thickness for which recognition is 209

sought. 210

3.3 Mechanical Fasteners Holding Test: A minimum of five replicate test specimens, 211

which consists of the pedestal and mechanical fastener, shall be subjected to withdrawal (pull-212

out and pull-through, as applicable) and lateral resistance tests in accordance with ASTM 213

D1761 or ASTM D1037, to determine the allowable capacity of the connection. Where 214

accessory components are fastened to pedestals, the fastener connection shall also be 215

determined under this section. 216

Exception: When full scale dynamic wind testing is conducted in accordance with 217

Section 4.5.1.1 and/or full scale dynamic seismic testing is conducted according to 218

Section 4.5.2.1; and an analysis is submitted establishing the capacity of the fastener 219

used in testing and installation; then the tests referenced in Section 3.3 are not required. 220


3.3.1 Conditions of Acceptance: Allowable capacities of the fasteners shall be the 221

average ultimate load divided by a factory safety of three (3) and shall be further reduced by 222

the amount in excess of 10% if requirements under Section 3.1.1.3 of this criteria are not met. 223

The allowable capacity of the fastener connection shall not exceed the demand resulting from 224

wind and seismic forces. 225

3.4 Structural Requirements for Raised-deck Systems: 226

3.4.1 General: Raised-deck systems shall withstand applicable uniform loads specified in 227

IBC Table 1607.1, as well as combined load effects of other applicable gravity loads defined in 228

IBC Chapter 16, such as snow and live loads. The allowable uniform load capacity of the 229

raised-deck system is based on the lowest of the capacity established from Sections 3.4.1.2 230

and 3.4.1.3. The concentrated live load performance shall be established by complying with 231

the requirements in Section 3.4.1.4. 232

3.4.1.1 Ultimate Test Load: When a minimum three replicate test specimens are tested, 233

and the coefficient of variation is greater than 15 percent, the least recorded test load value 234

shall be used as the ultimate test load; where the coefficient of variation does not exceed 15 235

percent, the average value shall be used as the ultimate test load. When five or more replicate 236

test specimens are tested, the average value shall be used as the ultimate test load, 237

regardless of the coefficient of variation. Testing must comply with Sections 3.4.1.2, 3.4.1.3, 238

and 3.4.1.4 of this criteria. 239

3.4.1.2 Uniform Load Test for Panels/Pavers Supported by Pedestals: Testing shall 240

be conducted in accordance with Section 4.1 of this criteria. The recognized allowable loads 241

shall be the lesser of the following: 242


a. The maximum deflection of panels/pavers, under allowable live loads specified in 243

IBC Table 1607.1, shall be 1/360 of the span in accordance with IBC Table 1604.3. 244

b. A minimum factor of safety of 3 shall be applied to the ultimate test load, as 245

determined in Section 3.4.1.1 of this criteria, to establish the allowable load. 246

3.4.1.3 Pedestal Axial Load: The allowable pedestal axial load shall be the ultimate test 247

load as determined in Section 3.4.1.1 of this criteria, divided by a safety factor of 3 and shall be 248

further reduced by the amount in excess of 10% if requirements under Section 3.1.1.3.1 of this 249

criteria are not met. Testing shall be conducted in accordance with Section 4.3 of this criteria. 250

3.4.1.4 Foot Traffic Concentrated Static and Impact Test Performance: The deck 251

panels/pavers shall resist the ultimate concentrated static and concentrated static following 252

impact performance loads of 550 lbf and 400 lbf, respectively, as shown in the Single Floor at 253

24 inches on center end use span rating in Table 2 of PS-2. Testing must be conducted in 254

accordance with Section 4.2 of this criteria. A minimum of three replicate test specimens shall 255

be tested, where the ultimate test load shall be as determined in Section 3.4.1.1 of this criteria. 256

The test specimens shall include the deck panels/pavers and pedestals spaced 24 inches on 257

center. The applied concentrated static and impact loads shall be located on the most critical 258

locations of the panel/ paver in accordance with Section 4.2 of this criteria. 259

3.5 Wind Resistance: If an engineering study based on in-field studies or a history of 260

performance over a minimum ten-year period is signed and sealed by a registered design 261

professional, recognition of the raised-deck system shall be granted for use in areas subjected 262

to a maximum ultimate design wind speed of 115 mph (185 km/h) on Category II structures 263

having a mean roof height of 33 feet (10 m) in Exposure B areas. 264


Exception: Recognition of raised-deck systems beyond these limits may be granted, 265

provided full-scale dynamic wind uplift tests are conducted in accordance with Section 266

4.5.1 of this criteria, and data analysis of the test results shall be conducted and 267

prepared as determined by a registered design professional. To assure acceptance by 268

ICC-ES, test procedures and data analysis methods used shall be submitted to ICC-ES 269

for review and approval prior-to testing. Testing and data analysis of the test results 270

shall be conducted on each raised-deck system for which recognition is sought, unless 271

determined by a registered design professional and ICC-ES evaluation staff to be 272

qualified based on testing of a representative material (i.e. panel/paver density, 273

dimensions, installation method, etc.). Raised-deck systems afforded this exception 274

shall be evaluated by a registered design professional to withstand applicable wind 275

loads specified in ASCE/SEI 7 Chapters 26 through 30, as well as combined load 276

effects of other applicable gravity loads defined in IBC Chapter 16, such as live and 277

snow loads. 278

3.6 Seismic Resistance: Recognition of raised-deck systems shall be limited to structures 279

assigned to Seismic Design Category (SDC) A or B, and the raised-deck systems having a 280

component importance factor of 1.0 as defined per Sections 13.1.3 and 13.1.4 of ASCE/SEI 7. 281

Exception: Recognition of raised-deck systems installed with structures assigned to 282

Seismic Design Categories C through F require full-scale dynamic tests conducted in 283

accordance with Section 4.5.2 of this criteria and data analysis of the test results shall 284

be conducted and prepared by a registered design professional. Test procedures and 285

data analysis methods used shall be submitted to ICC-ES for review and approval prior 286


testing. Testing and data analysis of the test results shall be conducted on each raised-287

deck system for which recognition is sought. 288

3.7 Roof Fire Classification for Raised-deck Systems: 289

3.7.1 General: When installed above a roof, roof fire classification testing in accordance 290

with ASTM E108 or UL 790 shall be conducted when recognition is sought for new 291

construction and, if applicable, for installation of the raised-deck system installed over an 292

existing Class A, Class B or Class C classified roof covering system. Testing shall be 293

conducted, with the roof deck and raised-deck system, at the minimum slope of ¼:12 (2 294

percent slope). For greater slopes, testing shall be conducted at the maximum slope for which 295

recognition is sought. 296

3.7.1.1 New and Existing Construction with a Noncombustible Roof Deck: When the 297

raised-deck system is installed directly over a code-complying noncombustible (concrete or 298

metal) roof deck, spread-of-flame testing shall be conducted on the raised-deck system(s) 299

representative of the system(s) for which recognition is sought. Specifically, each panel/paver 300

material is to be separately qualified by testing unless determined by ICC-ES to be qualified 301

based on testing of a representative material. 302

3.7.1.2 New and Existing Classified Roof Covering with a Noncombustible Roof 303

Deck: When the raised-deck system is installed over a code-complying classified (Class A, 304

Class B or Class C) roof covering installed over a noncombustible (concrete or metal) roof 305

deck, spread-of-flame testing shall be conducted on the combined raised-deck system and 306

classified roof covering representative of the systems for which recognition is sought. 307

Specifically, each panel/paver material is to be separately qualified by testing unless 308

determined by ICC-ES to be qualified based on testing of a representative material. 309


3.7.1.3 New and Existing Classified Roof Covering with a Combustible Roof 310

Deck: When the raised-deck system is installed over a code-complying classified (Class A, 311

Class B or Class C) roof covering installed over a combustible (plywood) roof deck, spread-of-312

flame, intermittent-flame and burning-brand testing shall be conducted on the combined 313

raised-deck system and classified roof covering representative of the systems for which 314

recognition is sought. Specifically, each panel/paver material is to be separately qualified by 315

testing unless determined by ICC-ES to be qualified based on testing of a representative 316

material. Testing shall be conducted on specimens constructed in accordance with ASTM 317

E108 or UL 790 with a roof deck made of minimum 15/32-inch-thick (11.9 mm), A-C, Group 1, 318

exterior plywood with face and back veneers of Douglas fir marked as conforming to PS 1 for 319

softwood plywood. If recognition is sought for combustible roof deck materials other than 320

plywood, the qualification test plan required by Section 2.5 of this criteria must address each 321

combustible roof deck material. 322

3.8 Adhesives (Optional): Where recognition is sought for adhesives used to adhere to 323

either the pedestal to the panel/paver or the vertical structural element of the pedestal to its 324

support base and top cap, testing shall be in accordance with Section 4.4 of this criteria to 325

establish the durability of the adhesive. Testing is required for each adhesive for which 326

recognition is sought. Specimens tested after being subjected to adverse conditions, such as 327

accelerated aging or oxidation, shall not exhibit a strength loss of more than 20 percent when 328

the average results are compared to the average results for the control specimens. 329

4.0 TEST METHODS 330

4.1 Uniform Load Test on Panels/Pavers Supported by Pedestals: A minimum of three 331

replicate test specimens shall be used. Testing shall be conducted in accordance with Section 332


10.2.1 of ASTM E 2322 and Section 7 of CISCA testing procedures, with the following 333

clarifications: 334

a. Load application and deformation readings shall be in accordance with Section 335

6.3 of ASTM E2322. 336

b. Air bags shall fully contact the test specimens during testing. 337

c. Bearing area of the test specimens shall accurately represent the intended field 338

installation. 339

4.2 Foot Traffic Concentrated Static and Concentrated Following Impact: Concentrated 340

load tests shall be conducted in accordance with ASTM E661, Procedure A with the following 341

modifications: 342

4.2.1 The deck panel/paver and pedestal system shall be installed in a manner 343

representative of its intended use. 344

4.2.2 The loading disk for concentrated load shall be 3-inch diameter. 345

4.2.3 The drop bag weight for impact shall be 30 lbs. 346

4.2.4 Impact shall be 75 lbf-ft. 347

4.3 Axial Load Test on Pedestals: Axial load tests shall be conducted in accordance with 348

Section 5 of CISCA testing procedures on a minimum of three replicate test specimens of each 349

type of pedestal for which recognition is sought. Pedestals shall be tested at conditions 350

representative of their installation. Test specimens shall consider testing at the maximum 351

pedestal height and including slope compensating accessory components. 352

4.4 Adhesive Tests (Optional): Where recognition is sought for adhesives used to adhere 353

either the pedestal to the panel/paver or the vertical structural element of the pedestal to its 354


support base and top cap; testing shall be conducted under Sections 4.4.1, 4.4.2, and 4.4.3 of 355

this criteria. Test specimens, conditioning, and methods shall comply with the ICC-ES 356

Acceptance Criteria for Sandwich Panel Adhesives (AC05), as indicated in the following 357

sections. Materials which are more representative of typical installation than those described 358

in Section 5.0 of AC05 may be used in test specimens. A set of specimens shall consist of five 359

replicate specimens. 360

4.4.1 Block Shear: Three sets of specimens shall be prepared. The control set shall be 361

conditioned in accordance with Section 6.0 of AC05, and tested in accordance with Section 8.3 362

of AC05. The second set shall be subjected to accelerated aging in accordance with Section 363

7.1 of AC05, conditioned in accordance with Section 6.0 of AC05, and tested in accordance 364

with Section 8.3 of AC05. The third set shall be subjected to an oxidation process in 365

accordance with Section 8.7 of AC05 and tested in accordance with Section 8.3 of AC05. 366

4.4.2 Bond Strength: Two sets of specimens shall be prepared. The control set shall be 367

conditioned in accordance with Section 6.0 of AC05, and tested in accordance with Section 8.5 368

of AC05. The second set shall be subjected to accelerated aging in accordance with Section 369

7.1 of AC05, conditioned in accordance with Section 6.0 of AC05, and tested in accordance 370

with Section 8.5 of AC05. 371

4.4.3 Mold: Each adhesive shall be evaluated for mold resistance in accordance with 372

Section 8.8 of AC05. 373

4.4.4 Chemical Reagent (Optional): Where recognition is sought for resistance to 374

chemical reagents, testing shall be conducted in accordance with Section 8.9 of AC05 for each 375

chemical reagent. 376

4.5 Dynamic Load Tests (Optional): 377


4.5.1 Wind Uplift Tests on Raised-deck system: 378

4.5.1.1 Wind Uplift Tests: Testing shall be in accordance with Section 31 of ASCE/SEI 379

7, to determine Ultimate and Allowable wind uplift loads for the raised-deck system and 380

panels/pavers; analysis of test data shall be signed and sealed by registered design 381

professional. A test plan shall be submitted to ICC-ES staff prior-to testing for approval. 382

Testing shall be conducted on each panel/paver and pedestal support system for which 383

recognition is sought, unless determined by a registered design professional and ICC-ES 384

evaluation staff to be qualified based on testing of a representative material (i.e. dimensions, 385

panel/paver density, physical strength, etc.). Structures should be evaluated by a design 386

professional following ASCE/SEI 7 procedure to ensure the project will not experience any 387

loads which exceed the loads accepted by the ICC-ES evaluation staff or code official. 388

4.5.2 Seismic Tests on Raised-deck system: 389

4.5.2.1 Seismic Load Tests: Testing shall be in accordance with the applicable 390

provisions in Section 6.0 of the ICC-ES Acceptance Criteria for Seismic Qualification by 391

Shake-table Testing of Nonstructural Components (AC156). In accordance with Section 4.3 392

and 6.5.1 of AC156, the Required Response Spectrum (RSS) shall be based on the maximum 393

value of design spectral response accelerations, SDS, for which recognition is sought. The z/h 394

parameter shall be taken as 1.0. In accordance with Section 4.3 of AC156, the seismic 395

parameters used for shake-table testing shall be described in the test report. Analysis of test 396

data shall be signed and sealed by registered design professional. 397

4.5.2.2 Test Specimens: In order to rely on limited testing to recognize untested raised 398

deck systems, as required by AC156, Section 4.5, including subsections 4.5.1 through 4.5.5, 399

tested assemblies shall be the assemblies that offer the least seismic capacity. Test specimen 400


shall include the raised-deck system components that will be recognized in the evaluation 401

report. Test specimen shall consider, but is not limited, to the following conditions: roof system 402

supporting the raised deck system (including roof covering and slope); maximum pedestal 403

height and bracing conditions; panel/paver types (mass and connection of deck panel/paver to 404

pedestal); raised-deck system mass; and raised-deck system perimeter restraint. 405

4.5.2.3 Conditions of acceptance for shake-table testing: In accordance with AC156, 406

Section 6.0, including subsections 6.2, 6.3, 6.6, 6.7 and 6.8.1, ceiling assemblies subjected to 407

the seismic demand described in Section 4.5.2.1 of this criteria shall satisfy the requirements 408

for structural integrity and functionality (or operational requirements). The following specific 409

requirements shall be satisfied: 410

4.5.2.3.1 The panels/pavers and the raised-deck system should not have any damage that 411

will prevent serviceability for pedestrian live loading. 412

4.5.2.3.2 Major damage, such as panel/paver buckling, panel/paver dislodging from 413

pedestals, crushing or dislocation of deck panels/pavers and pedestals that constitutes a 414

tripping hazard shall be constituted as unacceptable behavior. 415

4.5.2.3.3 The perimeter restraints should maintain its structural integrity and its function 416

after the shake-table testing. 417

4.5.2.3.4 Minor damage to the raised-deck system provided it can be repaired so it can 418

retain its function after the repair. 419

5.0 QUALITY CONTROL 420

5.1 The products shall be manufactured under an approved quality control program with 421

inspections by ICC-ES or by a properly accredited inspection agency that has a contractual 422

relationship with ICC-ES. 423


5.2 Quality documentation complying with the ICC-ES Acceptance Criteria for Quality 424

Documentation (AC10) shall be submitted. A qualifying inspection shall be conducted at each 425

manufacturing facility when required by the ICC-ES Acceptance Criteria for Inspections and 426

Inspection Agencies (AC304). 427

5.3 Ongoing follow-up inspections, by ICC-ES or by a properly accredited inspection agency 428

that has a contractual relationship with ICC-ES, are required under this acceptance criteria. 429

6.0 EVALUATION REPORT RECOGNITION 430

The evaluation report shall include the following: 431

6.1 Basic information referenced in Section 2.1 of this criteria, including a description of the 432

raised-deck system’s components, installation instructions and requirements, and product 433

identification information. 434

6.2 A statement indicating that the ability of the existing roof structure/assembly or exterior 435

supporting structure to resist the applicable loads imposed by the raised-deck system must be 436

demonstrated by a registered design professional to the satisfaction of the building official. 437

6.3 A statement indicating that the ability of the existing roof structure/assembly or exterior 438

supporting structure to provide adequate drainage after installation of the raised-deck system 439

must be demonstrated by a registered design professional to the satisfaction of the code 440

official. 441

6.4 A statement indicating that a perimeter containment must be installed around the 442

perimeter of the raised-deck system and at all ramp and/ or walkway areas as determined by a 443

registered design professional. The perimeter containment must comply with requirements in 444

the evaluation report, and must be designed by a registered design professional, and 445

subjected to approval of the code official. 446


6.5 A statement indicating that recognition of the raised-deck system is limited to areas 447

subject to a maximum ultimate design wind speed of 115 mph (185 km/h) on Risk Category II 448

structures, having a mean roof height of 33 feet (10 m) in Exposure B areas; in addition to the 449

historical performance engineering study conducted and prepared by a registered design 450

professional to validate claims of the statement. 451

6.5.1 (Optional): For recognition beyond a maximum ultimate design wind speed of 115 452

mph (185 km/h) on Risk Category II structures, having a mean roof height of 33 feet (10m) in 453

Exposure B areas; the acceptable design wind uplift pressures of the raised-deck system 454

derived from testing and subsequent data analysis shall be conducted and shall not exceed 455

the allowable wind uplift pressure of the existing roof assembly. Testing data analysis shall be 456

conducted by a registered design professional and all related documents shall bear the 457

signature of a registered design professional. Acceptable design wind pressures shall be 458

clearly identified as Strength Design values or Allowable Stress Design values. 459

6.6 A statement indicating that recognition of the raised-deck system is limited to structures 460

assigned to Seismic Design Categories A and B, and the raised-deck systems having a 461

component importance factor of 1.0, and recognition of structures assigned to Seismic Design 462

Categories C through F is outside the scope of the evaluation report. 463

6.6.1 (Optional): When recognition is achieved in accordance with Section 4.5.2 of this 464

criteria for Seismic Design Categories C through F, a statement indicating that recognition of 465

raised-deck systems installed in structures assigned to Seismic Design Categories A through F 466

is permitted in locations having a maximum SDS value based on testing. A description of the 467

raised-deck system assembly(s) qualified through shake-table testing shall be included in the 468

evaluation report. 469


6.7 When the raised-deck system is installed over an existing roof assembly, the roof fire 470

classification (Class A, B or C) shall be stated, as determined through testing in accordance 471

with Section 3.7 of this criteria. 472

Documents

TO: PARTIES INTERESTED IN RAISED-DECK SYSTEMS … · 2018-04-18 · International Building Code® (IBC); ASTM D638-14; ASTM D1037-06a, ASTM D1761-88 (2000)ε1; ASTM E661-03; ASTM