2022 IIBEC International Convention and Trade Show

Roof Technology and Science I

This course covers the technology and science of roofing—both historically and how it has evolved up to the present day. It features terminology and technical information regarding roof decks and structures; roof insulation; heat transfer; and various roof membrane types, including but not limited to bitumen and single-ply membranes. The course also presents an understanding of heat transfer theory, moisture, thermal design, and the calculation of U-factors as they pertain to roof system design. The course provides a solid foundation for low-slope roofing systems technology and theory. Further, the course teaches the learner common terminology that will follow them throughout their building enclosure career. Finally, this course is meant to be the first of two general roofing science courses.

1. Introduce the fundamental and salient aspects of general roofing types and terminology, with a concentration on low-slope roofing and the science that underpins the technology of this important building assembly.
2. Evaluate the various types of low-slope roofing systems and their
3. Analyze systems and provide recommendations on how to solve various roofing problems.
4. Review historical as well as present-day roofing applications.

André Coppin, RRC, RRO, AHERA

Cornerstone Architectural Group  | Kenmore, WA

André Coppin is a building envelope consultant/principal at Cornerstone Architectural Group in Seattle, Washington. He began his career in construction working as a carpenter’s helper and concrete laborer. After graduating from Western Washington University, he taught computer-aided drafting and design, physics, and math at a polytechnic for five years. Currently, he is responsible for building enclosure design and strategies for all types of construction, historic building preservations, and a wide range of reroofing, waterproofing, and envelope projects. In addition to his duties, he is the lead designer and project manager for building envelope projects, including investigations, construction document development, and construction observation and administration. He has been active in IIBEC for the past 14 years, serving in various capacities, including president of the Puget Sound Chapter and RRO Exam Committee. He is involved in the Education Committee for IIBEC and has taught many classes for the chapter.

Aaron Nelson, RBEC, RRC, RWC, REWC, RRO

Roofing Technical Services | Stanwood, WA

Aaron Nelson is the president of Roofing Technical Services. He started in the roofing industry just after graduating from high school by working as a sheet metal fabricator/installer. Working his way into the office of a commercial roofing contractor in Seattle, Nelson worked as an estimator/project manager for 10 years. In 2004, he joined the consulting side of roofing and started working on projects across the nation. Nelson and the team at RTS provide consulting and quality assurance observations for clients on projects throughout the nation, working with various code and climate conditions that make each project unique.

Diversity and the Bottom Line: Connecting diversity, equality, and inclusion to business success

What is the business case for achieving a greater level of diversity and inclusion at your company? A certified diversity professional will provide answers to this question and much more. The session will begin with a data-driven presentation of the business case for diversity, followed by common questions and a review of strategies companies can begin implementing. Finally, attendees will be taken through an action planning exercise. At the end of the presentation, a panel of representatives from IIBEC’s Diversity and Inclusion Task Force will address the audience.

1. Understand the bottom-line impact of diversity and inclusion on your business.
2. Learn strategies for implementing diversity and inclusion practices at your company.
3. Begin developing an action plan for diversity and inclusion.
4. Hear directly from the IIBEC Diversity & Inclusion Task Force about why this work matters to them and their businesses.

Dana Sleeper, Cheverly, MD

The Sleeper Group

Dana is the founder and CEO of The Sleeper Group. She is a Certified Diversity Professional (CDP®). The Institute for Diversity Certification’s CDP® credential is the gold standard in the diversity and inclusion profession. Dana works with nonprofits, small businesses, and multinational clients to conduct cultural assessments, improve hiring practices, provide diversity training, implement supplier diversity tracking, develop eLearning curriculum, and more.

Breaking Through the Mental Health Enclosure

Mental health and well-being are crucial to one’s ability to work, carry out daily activities, and engage in satisfying relationships, but people wait an average of 10 years before seeking treatment for a mental illness. Our panelists will discuss their personal experiences with mental health matters that include depression, anxiety, and substance abuse in both the COVID and pre-COVID world, and how they handled them.  This will be a candid discussion, with participants encouraged to ask questions and share experiences as they relate to the topic.

Statistics related to mental health and suicide:

One in five adults experiences mental illness

There is one death by suicide every 11 minutes.

75% of all lifetime mental illnesses begins by age 24

78% of people who die by suicide are male

Bob Card, F-IIBEC, RBEC, RRC, RWC, REWC, REWO

Wetherholt and Associates Inc. | Redmond, WA

Bob Card is a senior consultant and principal of Wetherholt and Associates Inc., in Redmond, WA. He is a founding member of the Puget Sound and Portland Chapters of RCI/IIBEC has been a regular presenter of IIBEC educational courses throughout the US and western Canada and is a past president of IIBEC. He has participated in the development and revision of numerous IIBEC education courses and credentialing exams, and he has chaired several IIBEC committees and task forces.

Anthony Dukes, RRC, RRO, PE

Wiss, Janney, Elstner Associates Inc. | Falls Church, VA

Anthony Dukes is a building enclosure consultant with over 12 years of experience in the investigation, assessment, peer review, and design of exterior building enclosures throughout the United States and abroad. After graduating with a Bachelor of Science in civil engineering from Clemson University, he started his career with a roofing consulting firm in metro Atlanta, Georgia. He is currently a senior associate at Wiss, Janney, Elstner Associates Inc. (WJE) in Falls Church, Virginia. His specialty is roofing and waterproofing, including most contemporary low-slope and steep-slope roofing assemblies, roof insulation systems, and a wide variety of coatings, as well as broad-based experience with building science principles, exterior wall assemblies, air barrier systems, and glazed assemblies. In addition to being a licensed professional engineer (PE), he is a Registered Roof Consultant (RRC) and Registered Roof Observer (RRO) through IIBEC, and he serves on the IIBEC Task Force on Diversity and Inclusion.

Scott Hinesley, F-IIBEC, RRC, PE

REI Engineers Inc. | Charlotte, NC

Hinesley is the president of REI Engineers Inc. (REI), a building enclosure consulting firm with eight locations serving the eastern United States. Scott received his degree in civil engineering from North Carolina State University and worked for a multiservices engineering firm in Raleigh, North Carolina, for several years before joining REI in 1998.
For over 20 years, Hinesley has been an active member of IIBEC and the American Council of Engineering Companies North Carolina Chapter (ACEC/NC). He recently completed his term as president for both organizations. He has served as president of the Carolinas Chapter of IIBEC and served on the Ethics Committee, the Technical Advisory Committee, and the IIBEC Interface Peer Review Committee.
Hinesley is a Registered Roof Consultant (RRC), a licensed professional engineer, and a member of the IIBEC Jury of Fellows. He resides in Charlotte, North Carolina, with his wife and two sons.

Amy Peevey, RRO, REWC, PE, CDT

SOCOTEC, Inc. | Houston, TX

Amy Peevey is a building enclosure engineer with over 20 years of experience in the new design, investigation/evaluation, and restoration of building envelope systems. She received her Bachelor of Science from the University of Texas at Austin and is a registered professional engineer in several states. She has spent most of her career performing forensic investigations and developing new designs, executing construction administration, and providing dispute resolution and/or expert litigation support for below-grade and plaza waterproofing, cladding, fenestration, and roofing systems, as well as related structural components. She is a seasoned presenter and published member of several technical trade associations and an active contributor to the building enclosure community.

Nondestructive Testing Methods in Structural and Building Enclosure Assessment

In recent years, nondestructive testing (NDT) methods have evolved as important tools for assessing both building enclosure and structural components. At the same time, many practicing engineers and architects are unaware of these methods or their capabilities. This presentation covers selected NDT methods that are currently in use in North America, and it includes a case study for each method presented to demonstrate how the NDT investigation guided the design team to an appropriate repair strategy. Attendees will gain an overview of select techniques for potential use in assessments.

Maziyar Bolour

Walter P Moore | Toronto, ON

Focusing on building sciences, Maziyar Bolour is a senior project manager and leads Walter P Moore’s Diagnostics Group in Toronto, Ontario, Canada. Having joined the architecture, engineering, and construction industry in 1997, he is experienced in structural design, evaluation, and rehabilitation of building structure and enclosure systems. He has completed more than 100 detailed condition assessments and technical audits for insurance companies, private property owners, and developers, and routinely performs audit and condition assessments of existing structures, parkades, and window or curtain wall systems commonly used in North America. Bolour’s extensive knowledge of the National Building Code of Canada /Ontario Building Code and the related design standards for various construction materials, along with a combination of structural engineering and enclosure consulting expertise, have made him an excellent resource for any complex repair and restoration project.

Michael Brown, PhD

Walter P Moore | Houston, TX

Michael Brown is a project manager within Walter P Moore’s Diagnostics Group, operating out of the Austin, Texas, office. Having joined the industry in 2000, he specializes in the evaluation and repair of reinforced and prestressed concrete buildings and has extensive experience in nondestructive testing. Brown is a member of the American Concrete Institute Committee 228: Nondestructive Testing.

Cladding Attachment Strength for Wood-Framed Structures

This presentation discusses the standards and building code requirements that govern the attachment of exterior wall claddings to wood-framed structures as compared to common installation practices and in situ performance. The presenters consider stucco, fiber-cement siding, and vinyl siding. Topics include:

• Industry standards, building codes, and applicable installation requirements and their origins
• Common installation practices that do not strictly comply with building code and manufacturer’s installation requirements
• The presenters’ mock-up testing of fastener withdrawal capacities and cladding attachment capacities; resulting reasonable allowable loads; and the most likely modes of failures for the various claddings
• Recommendations for modifying the current installation requirements

Larry Elkin, PE, CCT

Elkin Engineering & Diagnostics LLC | Charleston, SC

Larry Elkin has nearly 30 years of experience in design, commissioning, and forensics. He graduated from the Rose-Hulman Institute of Technology with both bachelor and master of science degrees in mechanical engineering. Later, he obtained a master of civil engineering with an emphasis in structural engineering from Norwich University. Elkin initially learned about stucco in the 1990s while diagnosing moisture issues with exterior insulation and finish systems. This led him to attend Sto’s certified installer training in 1996. Since then, he has inspected thousands of stucco-clad structures to diagnose the causes of failures and provide repair solutions.

Lee Fischer

Elkin Engineering & Diagnostics LLC | Charleston, SC

Lee Fischer is a professional engineer who oversees structural building enclosure and fenestration investigations using a multitude of diagnostic tools and test methods. He frequently serves as an expert witness in litigation. His experience extends across residential, multifamily, and light commercial structures and components.  Fischer holds FenestrationMaster certification from the Fenestration and Glazing Industry Alliance (FGIA) and is in the process of getting Elkin Engineering to become the only FGIA-certified field testing agency in South Carolina. He is an Infrared Training Center Level I infrared thermographer and has completed the Exterior Design Institute’s EIFS Third Party Inspector Certification, Quality Control and Moisture Analyst Training Course.

Air Infiltration and Its Consequences for Building Enclosures in Hot/Humid Climate

The consequences of unintentional air leakage through building enclosures for hygrothermal performance depend on many parameters such as climate zone and airtightness. The presenters recently published studies to quantify the risk of microbial growth in cold climate zones for building enclosures having a split insulation arrangement to meet code requirements. In this study, they focus on quantifying the risk in those zones of microbial growth and potential deterioration of interior gypsum wallboard for exterior walls in hot and humid climate zones because of unintentional exterior air infiltration. Several partially unknown parameters—namely air infiltration rates depending on airtightness, actual indoor temperatures, perm ratings of interior paints and exterior water-resistive air barriers, and their impact on the hygrothermal performance—are considered.

Manfred Kehrer

Wiss, Janney, Elstner Associates Inc. | Northbrook, IL

Manfred Kehrer is a senior associate at Wiss, Janney, Elstner Associates Inc. (WJE), who has been active in the field of building science for more than 30 years. After more than 20 years at Fraunhofer IBP, Germany, where he was active in the laboratory and leading development of WUFI software, he worked for the Oak Ridge National Laboratory for five years as a senior researcher and then served for one year as president of the start-up consulting company justSmartSolutions LLC. At WJE, Kehrer is in charge of building science solutions for a variety of problems in construction practice. He is a voting member, chair, and vice chair for several American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) and ASTM International committees, serves on the editorial board of the journal Frontiers in Built Environment, and has won several awards.

David Finley

Morrison Hershfield | Cleveland, OH

David Finley is involved in a wide range of architectural investigations. His building enclosure experience includes water infiltration testing of windows, curtainwalls, masonry facades, and plaza and below-grade waterproofing, as well as condensation and air leakage testing of glazed fenestrations and masonry facades.
Finley is well versed in performing hygrothermal analyses using steady and transient state techniques. Additionally, he is capable of analyzing window and wall systems for two-dimensional thermal conduction.

Testing Built-up and Modified Bitumen Roofs for Hail Damage

Although there is currently no ASTM method specifically for testing built-up and modified bitumen (bituminous) roof systems for hail-caused damage, laboratories routinely test bituminous roof systems for hail-caused damage. This presentation discusses the ASTM test methods that are commonly referenced in these laboratory testing reports. This presentation also includes findings from research the author’s company has performed using ASTM D3746, Standard Test Method for Impact Resistance of Bituminous Roofing Systems, to illustrate what hail-caused damage of bituminous roofs looks like and to compare our ASTM D3746 test results to actual hail-caused damage to bituminous roofs. The intent is to provide exemplar photographic examples for visual comparative purposes.

Stephen L. Patterson, RRC, PE

ROOFTECH | Fort Worth, TX

Stephen L. Patterson has been in the roofing industry for almost 50 years. He founded Roof Technical Services Inc. (ROOFTECH) in 1983 and has been an active consulting engineer and roof consultant ever since. ROOFTECH has provided laboratory testing, including testing for hail damage, since the late 1980s. Patterson has been technical director/director of engineering for two roofing manufacturers and managed a roof contracting company for four years.

Sunday, March 20, 2022

“To Be or Not To Be”: A Case Study of the Wind Impact Analysis of an Aged Curtainwall

As extreme weather events are becoming both more frequent and intense, essential facilities face a dual threat of increased wind pressures and airborne debris impacts, particularly at facilities with glazed curtainwall systems. Furthermore, the structural and waterproofing elements of these curtainwalls may have experienced age-related deterioration. This case study considers an existing medical office building with a 1960s curtainwall system. Investigators evaluated whether it could accommodate current code-level wind pressure impacts, and the evaluation was used to develop conceptual schemes to implement hardening retrofits or other appropriate restoration options that would better allow the facility to functionally remain operational during extreme weather wind events. The presentation addresses building codes and industry consensus standards used during this evaluation such as ASCE 7-16, Minimum Design Loads and Associated Criteria for Buildings and Other Structures, and ASTM E1996, Standard Specification for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Windborne Debris in Hurricanes. Particular focus will be placed on current technologies to both understand and improve the resiliency and sustainability of existing curtainwall systems.

Kimani Augustine, PE

Walter P Moore | Houston, TX

Kimani Augustine is a principal in Walter P Moore’s Diagnostics Group in Houston, Texas. He has been in the engineering industry since 2004 and has experience in diversified aspects of enclosure diagnostics consulting, including managing a wide variety of building enclosure projects and preparing design documents to address identified distress conditions. Augustine is a leader in Walter P Moore’s Enclosure Diagnostics Practice, which is dedicated to developing step-by-step processes for finding solutions to building enclosure issues. He is on the board of the IIBEC Gulf Coast Chapter, where he actively serves to enhance building enclosure knowledge in the Houston area.

Mallory Buckley, RRO

Walter P Moore | Dallas, TX

Mallory Buckley is an associate in Walter P Moore’s Diagnostics Group in Dallas, Texas. Her experience focuses on the field of building enclosure consulting, and her areas of expertise include assessing and designing repairs for distress conditions related to façade systems, building enclosure moisture management, roofing systems, and below-grade waterproofing on concrete substrates. Her portfolio includes developing work scopes, repair details, repair procedures, and technical specifications for waterproofing, restoration, and rehabilitation projects.

Deflection, Seismic Drift, Panel Walls, and Control Layers

Building structures are not entirely static, as they are designed to deflect and move under various loading conditions such as live loads, wind loads, and seismic loads. Some movement locations such as building expansion joints, cladding expansion joints, and curtainwall stack joints are typically well defined by the architectural design of the building. In many instances, however, the movement of a building structure occurs at more subtle interface and transition conditions that are not always clearly defined architecturally. Determining the location of this movement can become increasingly complex with unitized and panelized wall systems in seismic areas that have airtightness requirements.

This presentation provides background on how building structures move and the impact that movement has on enclosure systems and their geometry. This presentation also suggests design approaches for identifying the building movement locations to address control layer continuity.

Brad Carmichael, PE, CPHC

4EA Building Science | Seattle, WA

Brad Carmichael has been consulting on building enclosures throughout North America for more than 15 years; his work has included complex new construction and rehabilitation projects. He is passionate about good design and the role it can play in social and environmental stewardship. He believes that durable and efficient building enclosures are critical for a built environment that is low consumption and long lasting.

Are Air Barriers, Vapor Barriers, and Water-Resistive Barriers the Same?

People use the terms “weather barrier,” “vapor barrier,” “air barrier,” and “water-resistive barrier” interchangeably, which results in confusion in the industry. For example, design professionals may be critical of the water vapor transmission rate of a barrier material when the real problem is the air control area. To address this confusion, the presenter explains that the industry should first define these barrier terms as functions and then look at materials to determine whether they can provide the intended function. Proper understanding of these terms and what their function is in a building enclosure is becoming more critical as we move to higher-performing buildings.

Laverne Dalgleish

Air Barrier Association of America | Walpole, MA

Laverne Dalgleish has spent most of his life in the construction business. As the executive director of the Air Barrier Association of America (ABAA), he has been involved in all their research projects, starting with a major one to demonstrate the energy savings of airtight buildings. Dalgleish is the coordinator for developing material specifications for air and water-resistive barriers and test methods to determine the material properties. As the developer of ABAA’s Site Quality Assurance Program, he saw the problems caused by water intrusion and poor workmanship.

Wind Resistance of Standing Seam Roofs and Their Interaction with Roof-Mounted Solar Panels

Standing seam roofs (SSRs) behave somewhat differently than other roof coverings when exposed to wind uplift pressures. Their design came under closer scrutiny after Hurricane Andrew struck south Florida in 1992. Since then, our knowledge of SSR wind resistance has increased considerably, such that SSRs can now be properly tested, designed, and installed to meet relatively high wind design pressures, including in perimeter and corner roof areas.

This presentation explains that external seam clamps or wind clamps can substantially increase the wind uplift resistance of an SSR if they properly fit the seam profile and are installed correctly. They may change the failure mode of the SSR, and the limiting factor of the enhanced assembly will likely be the strength of the internal clip. When securing solar panels to an SSR, it is important that the clamps used to secure them be attached to each deck rib to follow the wind load path of the SSR design and prevent overloading internal clips

Richard J. Davis, PE

FM Global | Manomet, MA

Richard J. Davis has been working in loss prevention engineering for 47 years. He has written and revised a number of FM Global data sheets on construction, including the ones for standing seam roofs and roof-mounted solar panels. Davis has also served on many external committees working on codes and standards development, including the ASCE 7 wind load subcommittee for the last three revision cycles. He was task committee chair for the chapter on roof-mounted equipment during the latest ASCE 7 revision, and he contributed to the 2017 revision of the Structural Engineers Association of California’s Wind Design for Solar Arrays (SEAOC PV2). Davis has given numerous presentations on wind design, both internally for FM Global wind specialists and externally to various roofing associations.

Making the Connection: Fastening Through Continuous Insulation

Despite its many benefits,  continuous insulation in exterior wall systems separates the cladding from the supporting structural framing (often by 2 in. or more), which can create severe demands on fasteners bridging the gap. Connection details become increasingly challenging to reasonably resolve demands and capacities, particularly with heavier claddings and thicker continuous insulation. The industry has responded to some degree: designers are being more creative, suppliers are developing proprietary thermally improved framing or clip systems, and model building codes recently incorporated fastening requirements. However, the industry has not fully addressed the complex array of conditions that can be encountered and the associated engineering issues to efficiently provide proper performance of the exterior wall system. This presentation discusses the complex behaviors of the seemingly simple cladding connections through continuous insulation, associated design challenges, concepts for resolving demands and capacities, and current requirements recently adopted in the International Building Code.

Leah Ruther, PE

Wiss, Janney, Elstner Associates Inc. | Grand Haven, MI

Leah Ruther is a licensed professional engineer at Wiss, Janney, Elstner Associates Inc. (WJE). She has a bachelor’s degree in civil engineering from Calvin University and a master’s degree in civil engineering from Lawrence Technological University. Since joining WJE in 2012, Ruther has been involved with numerous structural engineering and architecture-related projects. Her responsibilities include the investigation and analysis of existing and damaged structures, development of technical repair and rehabilitation documents, and construction observations. Ruther has experience with building enclosure–related failures such as water infiltration, air leakage, and condensation, as well as structural failures.

Logan Cook, PE

Wiss, Janney, Elstner Associates Inc. | Indianapolis, IN

Logan Cook is a licensed professional engineer at Wiss, Janney, Elstner Associates Inc. (WJE). He has a bachelor’s degree in construction engineering and management and master’s degree in engineering from Purdue University. Since joining WJE in 2012, Cook has served as project manager or project associate on hundreds of assignments related to the investigation, repair, and restoration of new and existing arenas, stadiums, museums, buildings, parking garages, and bridges. His experience includes evaluating challenges and developing solutions related to facades, roofing, waterproofing, masonry, concrete, steel and various types of structural systems.

You Down with VIG: A Vacuum-Insulated Glazing Primer

Vacuum-insulated glazing (VIG) is an emerging technology that has been in commercial development for the past 20 to 30 years The concept was first described in a German patent application in 1913 and was more seriously studied, with the production of real units, in the 1980s. While some VIG technology has been commercially available since 1996, its presence in the United States architectural market has been minimal. The presentation includes a brief history of VIG technology, describes the typical makeup of VIG and hybrid VIG units, addresses the thermal performance of available products, and discusses considerations for evaluating various products available in the market. The presentation also offers two recent projects as case studies.

Sarah Sinusas, PE

Wiss, Janney, Elstner Associates Inc. | New Haven, CT

Sarah Sinusas is a senior associate at Wiss, Janney, Elstner Associates Inc. (WJE) in New Haven, Conn. She has specialized in building envelope systems since beginning her career in 2008. Her primary focus is the evaluation and investigation of curtainwall and window assemblies, and she has participated in and led projects that include design, detailing, testing, and monitoring of a variety of cladding and glazing systems. Sinusas led WJE’s assessment of vacuum-insulated glass for the case studies in this presentation.

Joseph M. Bukovec, RRO, PE

Walker Consultants | New Haven, CT

Joseph M. Bukovec is the director of building envelope, forensics, and restoration for Walker Consultants in New Haven, Conn. He has specialized in historic preservation and building enclosure systems since beginning his career in 2005. His primary focus is the investigation and repair design of historic facades, windows, roofing, and waterproofing systems. He has consulted on projects that include the investigation, testing, repair design, and construction administration for architecturally significant facades and roofs. With his previous firm, Bukovec was the project manager for one of the case studies in this presentation, which included the replacement of historic wood-framed windows with state-of-the-art hybrid vacuum-insulated glazing units in thermally broken aluminum frames.

Monday, March 21, 2022

Water, Wind, Windows, and Walls with Continuous Insulation

New research and building code provisions have improved appropriate means to continuously insulate walls and integrate fenestration in punched openings for optimal performance. This presentation reviews structural wind resistance and water-resistance research supporting various detailing options in the context of new provisions in the latest editions of the International Building Code and International Residential Code. The presenter also discusses the thermal efficiency and thermal bridging implications of various details to integrate punched openings with continuous insulation on walls. In addition, the presentation includes a sneak-preview of new research on wind-driven rain hazard characterization as a means to improve guide design and detailing decisions for water-resistance of building enclosures and components.

Jay Crandell, PE

ARES/ABTG | Shady Side, MD

Jay Crandell has over 30 years of experience in construction, engineering, and innovative building technology research for private and public sector clients. He has conducted benchmark studies of major natural disasters and conducted research to address significant structural, energy, and building science challenges. His work has helped to propel many innovative technologies into the International Codes and consensus standards. He is widely published on various engineering, construction, and building science topics. For additional information visit www.aresconsulting.biz and www.appliedbuildingtech.com.

Low-Rise Foam Adhesive Testing and Research

This presentation describes a testing and research project to determine how the bond capacity of low-rise foam adhesive between insulation panels at varying adhesive ribbon spacings was affected when the adhesive was applied to both fiberglass and organic-faced polyisocyanurate insulation boards. The project scope included design and fabrication of custom 4-ft× 4-ft aluminum frames; testing of eighteen 4-ft square specimens in direct tension until failure; testing six companion, small-scale (12 in. × 12 in.) specimens in direct tension until failure; evaluation of test results; and development of key observations from the test program.

Randy Adams

Midwest Roofing Contractors Association| Indianapolis, IN

Randy Adams is chair of the Midwest Roofing Contractors Association Technical and Research Committee. He has more than 40 years of specialized experience in the roofing industry and is owner and president of R. Adams Roofing Inc., Environmental Greenscapes Inc.

Richard S. Koziol

Wiss, Janney, Elstner Associates Inc. | Northbrook, IL

Richard S. Koziol is a principal at Wiss, Janney, Elstner Associates Inc. (WJE). He has more than 35 years specialized experience in investigating and testing roofing systems. He has developed and designed repairs for water infiltration and condensation problems in new and existing building enclosures. Koziol is a graduate of the University of Illinois at Chicago and a licensed architect in five states.

Using Building Enclosure Commissioning to Outline a Comprehensive Control Process

Historically, the most common area of building failure is the exterior enclosure. When applied systematically, building enclosure commissioning (BECx) services can significantly reduce the risk of future water infiltration; improve facility operation and maintenance; and reduce the life-cycle cost of the facility for the life of the building. The BECx process confirms that building enclosure system and assembly functionality, durability, and constructability, design and installation quality, and interoperability will meet the owner’s project requirements. BECx services, however, can vary greatly and are commonly misunderstood. The presentation explains step by step how BECx can outline a comprehensive control process that is fully integrated into project delivery. Through case studies, the presenter provides specific steps to scope, lead, plan, schedule, and execute BECx.

Petersen Lambert, BECxP

Allana Buick & Bers Inc. | Seattle, WA

Petersen Lambert is a principal and division manager for the Pacific Northwest and director of testing at Allana Buick & Bers Inc./ABB Testing. He has more than 20 years of industry experience and is a frequent presenter at in-house and industry events. He specializes in identifying and resolving enclosure waterproofing issues during construction. As a Building Enclosure Commissioning Process Provider (BECxP), he is a technical leader in building enclosure commissioning, quality control/quality assurance, construction administration services, and various types of building envelope performance testing.

Waterproofing Challenges in Hydrostatic Conditions

As our urban and suburban spaces are becoming increasingly congested, the building industry is designing and constructing projects in areas and conditions that were previously considered uninhabitable, including below-grade spaces under constant hydrostatic pressure. Efforts to make such spaces habitable may include the use of waterproofing systems not previously used in the region. Discussion of the application of familiar materials in unfamiliar conditions may be useful to colleagues and industry professionals to help identify potential hazards and pitfalls associated with these waterproofing applications.

In addition to the selection of waterproofing material and design detailing, this presentation explores preconstruction activities and applied strategies from the presenters’ experience. Various lessons learned in the field from projects with similar hydrostatic conditions are also reviewed. These lessons include recommended considerations for concrete placement, appropriate interfaces with other building enclosure systems, and repair solutions for possible damages resulting from unanticipated field conditions.

We will also outline strategies for successfully implementing delegated designs within both traditional and modern project delivery methods. In traditional design-bid-build projects, specifications play a critical role in defining the expectations for project team members. Meanwhile, newer project delivery methods ensure specialty designers and contractors are contracted early in the design process. With the advent of building enclosure commissioning, early project involvement of building enclosure consultants and BECx Providers can add value in the form of additional quality assurance to protect stakeholder interests.

Edward L. Lehman, RRO, REWO, REWC, AIA, CDT, CEI, BECxP, CxA+BE

Wiss, Janney, Elstner Associates Inc. | Duluth, GA

Edward L. Lehman has well-rounded experience in the design and construction of various types of commercial buildings and is involved in building enclosure consulting and commissioning for new construction and existing building projects. In addition to providing consulting services, Lehman has served in multiple other roles, including contract administration for architects and quality assurance management for large-scale general contractors. He has participated in a variety of peer reviews, analyses of mock-up panels, and preinstallation meetings, and he has coordinated field performance testing on waterproofing, roofing, and glass/glazing systems.

Douglas R. Stieve, RRC, AIA

Wiss, Janney, Elstner Associates Inc. | New York, NY

Douglas R. Stieve is a building enclosure consultant who specializes in roof and waterproofing consulting as well as masonry construction. He has experience with many types of materials, including low-and steep-slope roofing as well as plaza deck, vegetative roof, and subgrade waterproofing systems. Stieve has worked on projects that have won awards from the American Institute of Architects, Engineering News-Record, and the National Trust for Historic Preservation, among other organizations. He has authored several articles and technical papers, and he has lectured throughout the United States on the subjects of roofing, waterproofing, and masonry construction.

ASCE 7-22 Wind Design Provisions

The American Society of Civil Engineers ASCE has updated the wind design provisions in the 2022 edition of ASCE 7. Many of the provisions aim to simplify the use of the component and cladding design provisions, particularly in determining roof zoning and design pressures. The presentation reviews these revisions and discusses the reasons for eliminating the tabular methods, the basis of the new tornado design provisions, and updates to the wind speed maps.

Donald R. Scott, PE, SE, FSEI, FASCE

PCS Structural Solutions | Tacoma, WA

Donald R. Scott is a senior principal with PCS Structural Solutions. He has nearly four decades of experience in the design, evaluation, and rehabilitation of building structures. He was the principal investigator for the American Society of Civil Engineers/Structural Engineering Institute (ASCE/SEI) Prestandard for Performance-Based Wind Design. Scott is chair of the SEI Codes and Standards Executive Committee, chair of the ASCE 7 Wind Load Subcommittee, member of the ASCE 7 Main Committee, and past chair of the National Council of Structural Engineers Associations’ Wind Engineering Committee. Scott is also a member of the SEI Board of Governors and a past president of the Board of Directors of the Applied Technology Council.

“Return to Glory”: Restoring Safety to Tampa General Hospital’s Brick Facade

Tampa General Hospital is an award-winning medical center serving Tampa Bay, Fla. The hospital first opened in 1927 and has since undergone various expansions and renovations. In 2015, facility staff observed near the West Pavilion’s main entrance that brick masonry units had fallen, presenting an overhead safety hazard for hospital patients and visitors. Walter P Moore was retained to evaluate the general condition of the brick facade and recent brick failure, provide repair recommendations, and perform construction administration services during the repair work. The investigative team used more than 30 exploratory openings through the brick facade to observe concealed conditions, and identified several unique issues that necessitated widespread repairs. Unforeseen conditions also surfaced during the repair work, presenting several interesting challenges. This presentation discusses the methods of assessment and repair at the hospital, and how the team overcame the challenges of performing repairs to a facility that remained fully operational during the COVID-19 pandemic.

Webb Wright, PE

Walter P Moore | Orlando, FL

Webb Wright is a senior associate and senior project manager in the Walter P Moore Diagnostics Group with expertise in forensic engineering. He has more than 20 years of engineering experience in diversified aspects of structural engineering analysis, investigation, and evaluation of distressed and failed materials involving a broad range of structural, civil and architectural systems. He has also performed assessments and repairs of various facade cladding systems, reinforced concrete, masonry, prestressed concrete, steel, and timber structures. He routinely provides expert witness services on behalf of insurance companies and property owners.

Amaris Beza, PE

Walter P Moore | Orlando, FL

Amaris Beza is an engineer in the Walter P Moore Diagnostics Group. Her experience focuses on the field of building enclosure consulting and repair of existing buildings. Amaris’s expertise includes evaluating and designing repairs for distress related to concrete structures, building enclosure moisture management, roofing systems, and waterproofing systems. She has developed repair details, repair procedures, and technical specifications for waterproofing, restoration, and rehabilitation projects. Amaris has worked on several building enclosure third-party reviews for clients, reviewing technical specifications and drawings for continuity of building enclosure systems.

Water Tower Place Marble Facade Restoration

Water Tower Place is a 74-story building constructed in 1976. The exterior facade is generally constructed of 1½-in.thick Georgia Cherokee Solar Gray marble stone veneer panels, with flush aluminum-framed windows. The panels are typically restrained using stainless steel kerfs at the bottom corners or center of the panels, and stainless steel pins at the top and sides of the panels.

In December 2003, the owner was advised that bowing of the marble facade panels and presumed accompanying marble strength loss had accelerated after 25 years of slow but linear weakening—the marble had lost 30% of its strength in roughly 30 years.

This presentation reviews efforts to extend the facade’s service life to 2025 or longer. After hundreds of strength tests were evaluated and an updated wind tunnel test was performed, nearly 17,000 custom repair anchors were installed in the building from 2007 through 2009. In the years since then, additional yearly examinations have been performed, along with additional stone testing. The repairs implemented nearly 20 years ago have kept the facade serviceable, and the future serviceable life is currently being studied.

William D. Bast, PE, SE, SECB

SOCOTEC Engineering Inc. | Chicago, IL

William D. Bast has been a practicing structural engineer for more than 35 years in Illinois, where he has led structural design teams in renovations at Wrigley Field, Navy Pier, and Willis Tower. His expertise includes building facade evaluations, renovations, and repairs. He also serves as an expert witness in disputes and lawsuits. Bast is a former president of the Structural Engineers Association of Illinois and the National Council of Structural Engineers Associations.

Lee Fink, AIA, LEED AP BD+C

SOCOTEC Engineering Inc. | Chicago, IL

Lee Fink is a senior consultant in the Building Envelope Division of SOCOTEC Engineering in Chicago, Ill. His areas of expertise include design and restoration of building enclosures that include masonry wall, glazing, metal cladding, and roofing systems. He has lead the exterior restoration of several postmodern high-rise buildings, including OneAmerica Tower and Rhodes Tower. Fink is chair leader on the Technical Issues Knowledge Committee for AIA Chicago and previously served as a professor at Northwestern University.

Assessing the Performance, Application, and Cost of Retrofit Wall Systems for Residential Buildings

The Oak Ridge National Laboratory, Pacific Northwest National Laboratory, and the University of Minnesota have been conducting a three-year study of residential retrofit wall systems. The researchers have identified, tested, and verified the hygrothermal performance of 16 wall assemblies in retrofit applications. The approach to this study includes a comprehensive literature review, the involvement of an advisory group of thermal enclosure experts, small-scale experimental in situ testing of the wall assemblies at the University of Minnesota’s Cloquet Residential Research Facility, and energy and hygrothermal simulation of wall assemblies using EnergyPlus, THERM, and WUFI. Simulation and experimental results are then combined with an economic analysis to produce a techno-economic study of residential wall systems for deep energy retrofits.

This presentation summarizes the findings of this research project and is intended to guide architects and designers on how to retrofit existing wall assemblies without creating durability issues.

André Desjarlais, FASTM

Oak Ridge National Laboratory | Oak Ridge, TN

André Desjarlais is the program manager for the Residential Buildings Integration Program at the Oak Ridge National Laboratory and has been involved in building enclosure research for 48 years. His areas of expertise include building enclosure energy efficiency, moisture control, and durability. Desjarlais has been a member of ASTM International since 1987, is the past chair of ASTM Committee C16, and was awarded the title of ASTM Fellow in 2011. He has been a member of ASHRAE since 1991 and is past chair of ASHRAE Technical Committee 4.4 on Thermal Insulation and Building Systems. Desjarlais is also a founding director of the RCI-IIBEC Foundation.

Wet Concrete Can Ruin a Good Roof Design: Insights to Cement Your Success

With misinformation swirling around the topic of moisture in concrete roof decks, it can be difficult to know the right approach to take to mitigate risk. Key questions include:

• Are roof failures due to moisture in concrete primarily associated with the use of lightweight concrete decks?
• When can the building interior facilitate downward drying of a wet concrete roof deck?
• Is 28 days the right amount of time to let a new concrete deck cure before installing a roof?
• Are admixtures and moisture vapor–reduction additives effective in mitigating concerns around moisture in concrete roof decks?
• Are vapor retarders the answer? What about vented base sheets?
• Which adhesives and insulation and cover board facers are appropriate to use in these roof assemblies?

The presenters explore this industry-wide issue, debunk some of the myths, provide a framework to discuss these risks with the project team, review design considerations, and discuss guidelines to mitigate your risk.

Jennifer Keegan, AAIA

GAF | Parsippany, NJ

Jennifer Keegan is the director of building and roofing science for GAF, focusing on overall roof system design and performance. She has more than 20 years of experience as a building enclosure consultant specializing in building forensics, assessment, design, and remediation of building enclosure systems. Keegan provides technical leadership within the industry as the chair of the ASTM D08.22 Roofing and Waterproofing Subcommittee and as the education chair for IIBEC. She advocates for women within the industry, serving as an executive board member of National Women in Roofing and a board member of Women in Construction.

Corey Zussman, RBEC, REWC, RWC, RRC, RRO

Pepper Construction | Barrington, IL

Corey Zussman is a 26‐year veteran in the construction industry. Since 2012, he has helped guide the leadership, design, and implementation of Pepper Construction’s quality management systems and continually assesses and improves the effectiveness of the firm’s processes and standards. As director of quality management, Corey visits Pepper jobsites to plan, oversee, and promote construction quality directives. He serves as a resource to all project teams throughout the preconstruction and construction process. Corey has a bachelor of architecture degree with a minor in construction management and business management and master of business administration degree with a specialization in quality management from the Illinois Institute of Technology.

Evolution of Sheet Metal Window Sill Flashing: Lessons Learned that Lead to Better Performance

Flashings are often the most challenging aspect of aluminum window system design and installation on both new and replacement projects. Although the aluminum window system and its performance are often well detailed by the window manufacturer, providing a waterproof transition of the window frame to cladding system interface can be challenging. Metal sill flashings have been used in the construction industry as a supplemental element in window systems (in addition to the manufacturer’s standard sill design). However, inadequate attention to sill flashing detailing can result in water leakage into the exterior enclosure and even into the building interior. Historically, metal sill flashing was often continued into the rough opening of the window, and this method is sometimes still used today. This presentation addresses how going beyond the standardized approach to detailing, and taking into consideration the installers’ sequencing of components during installation, can minimize potential pathways for water intrusion.

Rocco C. Romero, AIA, NCARB

Wiss, Janney, Elstner Associates Inc. | Seattle, WA

Rocco C. Romero is a registered architect and principal with Wiss, Janney, Elstner Associates Inc. (WJE) in Seattle, Wash. He has more than 30 years of experience and has investigated hundreds of building enclosure systems. Romero specializes in water leakage investigations, assessment, diagnostic testing, and repair design and construction document preparation in contemporary and vintage buildings and structures. He provides professional consulting services to owners, architects, and general contractors related to the design, performance, and constructability of new and retrofit building enclosure systems. Romero also provides expert witness and litigation support services on existing buildings.

Wind Performance of Buildings: Building Enclosure and Rooftop Equipment Challenges

The 2020 Federal Emergency Management Agency’s Mitigation Assessment Team (MAT) report on Hurricane Michael in Florida (FEMA P-2077) states, “Overall, the MAT’s assessments of buildings impacted by Hurricane Michael and other recent hurricanes show that structural systems of buildings built to modern building codes are performing well. As performance of structural systems has improved, the vulnerability of the building envelope has become increasingly apparent.”

This presentation describes the state of building enclosure wind performance at the time of Hurricanes Hugo and Andrew (1989, 1992); explains the reasons for improved wind performance of building enclosures during the past 30 years; and presents the challenges (obstacles) for further improvement of the wind performance of building enclosures. The presentation also explores roles and opportunities for building enclosure designers and consultants, manufacturers, contractors, and IIBEC to enhance the wind performance of building enclosures.

Thomas L. Smith, AIA, RRC, FSEI

TLSmith Consulting Inc. | Rockton, IL

Thomas L. Smith specializes in forensic architecture and architectural technology and research, with an emphasis on roof systems and wind performance of buildings. He has served on the American Society of Civil Engineers’ ASCE 7 subcommittee on wind loads since 1990. He has performed building performance investigations after 16 hurricanes and 6 tornado outbreaks and has coauthored 13 wind design guides. He received the Carl G. Cash Award from ASTM International in 2013 for his body of work regarding wind damage investigations. Also in 2013, he was named a fellow of ASCE’s Structural Engineering Institute.

Resisting Water Infiltration from Cladding Attachment Penetrations in the Wall Assembly

How do you make sure penetrations through your already installed air and water barrier are watertight? The method of sealing of cladding attachments through the wall assembly are critical to the building performance. To create a relevant, data-backed solution, a robust test plan was developed using a statistical test design and implemented to test all the variables of interest. Then, a statistical model was built to predict the probability of leaks with various sealing solutions. The process was used to determine which type of flashing and sealing solution is best to ensure watertightness after cladding attachments are installed over polyisocyanurate insulating sheathing. This presentation shares the basis of the test plan and research methodology as well as the findings on sealing penetrations through this system.

Andrea Wagner Watts, LEED Green Associate

DuPont Performance Building Solutions | East Aurora, NY

Andrea Wagner Watts is the commercial application leader for DuPont Performance Building Solutions. In the 15 years, she has worked in the construction industry, she has successfully helped develop multiple sealants and air/water barrier system solutions. Currently, she focuses on improving the overall performance of the building enclosure through application innovation and new product development. Watts has published on building science, interfaces, durability, and resiliency. She has two patents, is a LEED Green Associate, and is the Technical Committee co-chair for the Air Barrier Association of America. Watts holds a bachelor of science degree in civil engineering from Cornell University.