Past Meetings

September 2021 Monthly Meeting

When
-
Meeting Title
Preventable Curtain Wall Failures
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Henry Taylor, Kawneer
Description

A failure of an installed curtain wall on a commercial project can be costly and time consuming. A failure can do more that physical property damage. It can have an impact on all parties involved in the project and repercussions could last years. Most failures can be tracked to simple mistakes that were preventable. Mistakes come from people rushing to complete a project; not understanding specific project conditions and how these impact the system; not understanding completely how a system performs or failing to follow the fabrication or installation guidelines provided by the manufacturer. This presentation takes a high-level look at common causes of failures that occur repeatedly. This is not intended to make all field experts but to illustrate conditions that if identified early could prevent a failure. All stakeholders in a commercial project want to see it completed successfully and last years. Identifications of potential problems early will assist in the health and welfare of the commercial building and those who utilize the facility.

Henry Taylor is a native of Atlanta, Georgia where he earned his undergraduate degree at Georgia State University and Masters at Kennesaw State University. He has been in glass & glazing for over 30 years and has experience with a commercial glass shop and national glass fabricator, and has spent the majority of his career with the Kawneer Company. Henry started with Kawneer in Field Sales working with commercial glass companies and architects designing commercial projects then moved to the corporate headquarters to start up and manage the Architectural Services Team. During this time he was on the board of the Glass Association of North America and chairman of the BEC (Building Envelope Contractors) leading three of their annual meetings. Currently Henry manages the Training Department for Kawneer where he spends time working with their customer network training field crews, project managers and estimators. He continues to work with architects through Kawneer’s support of the AIA CES program preparing and presenting AIA CES presentations and manages issuing AIA Learning Units and certificates to attendees.

1 AIA LU/HSW

June 2021 Monthly Meeting

When
-
Meeting Title
A Survey of Single Ply Roofing Attachment Options
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Bob Card
Description

This course will review the myriad attachment methods for single ply membranes, including different membrane types, substrates, and structures. Advantages and disadvantages of the various attachment methods will be discussed as well as various criteria which may dictate a certain attachment type.

Bob Card is a senior consultant and principal of Wetherholt and Associates, Inc., Redmond, WA. Bob has been a consultant with Wetherholt and Associates since 2001, and a principal since 2005. He conducts building enclosure assessments and leak investigations, and prepares specifications and drawings for roofing, waterproofing, and exterior cladding projects. He also has provided legal and expert witness testimony.

Bob is a past president of the International Institute of Building Enclosure Consultants (IIBEC), and has attained Registered Roof Consultant, Registered Waterproofing Consultant, Registered Exterior Wall Consultant, and Registered Building Envelope Consultant (RBEC). He is a regular presenter for IIBEC education courses around the country, and also presents for other industry organizations.

1 AIA LU/HSW

May 2021 Monthly Meeting

When
-
Meeting Title
THERM: Analyzing the Evolution of Wall Assemblies
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Michael Meade
Description

An introduction to the LBNL software THERM will be presented. Six wall assemblies commonly used from 2000-2020 are analyzed and described. Each assembly has performance positives and negatives and these can be shown by using the software.

We will discuss total R value of wall assemblies and dew point locations. There will be discussion of how to avoid mold and condensation in walls by proper analysis. Keeping the building warm and dry prevents mold, saves energy, and keeps occupants safe and healthy.

Mike Meade is an Architect with Hennebery Eddy Architects. He graduated from the University of Oregon, and has worked in Portland since the year 2000. He has been part of teams that have built several buildings in Portland, including OHSU Kohler Pavilion, Mercy Corps Global Headquarters, Cyan/PDX, the Vista North Pearl Condos, and the PDX Concourse E Extension.

Mike has a passion for building technology and is the Vice President of the Portland Building Enclosure Council.

April 2021 Monthly Meeting

When
-
Meeting Title
Overcladding Strategies for Institutional Buildings
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Michael H. Chafetz
Description

Drawing on his experience working on the rehabilitation of major institutional buildings and focusing on early-to-mid 20th century masonry construction, the speaker will discuss technical approaches to masonry whole-façade replacement while keeping a building fully operational. The presentation will cover structural engineering, building enclosure design, energy efficiency improvement, constructability, logistical, and economic aspects of overcladding projects. In particular attendees/readers will learn about:

  • Building condition assessment and investigation to form the basis of a rehabilitation design
  • Building code requirements relating to building overclad design
  • Building enclosure design strategies and energy saving opportunities
  • Logistical and planning aspects for uninterrupted building operation
  • Structural engineering requirements and design strategies
  • Common masonry recladding materials and their advantages and limitations

Michael H. Chafetz joined Simpson Gumpertz & Heger Inc. (SGH) in 2013. He is a licensed engineer in Massachusetts with a degree in civil engineering. He manages building envelope projects for various university, architect, owner and developer clients, including large multi-year envelope restoration projects, in which SGH acts as the prime designer. He specializes in investigation and restoration of contemporary and historic buildings, as well as condition assessments, new construction design consulting and litigation support.

1 AIA LU/HSW

March 2021 Monthly Meeting

When
-
Meeting Title
Longevity of Structures and Functioning Building Enclosures
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Grace Wong, AIA, PE, LEED AP BD+C
Description

One of the many challenges of innovation in building enclosure design is the risk of using technologies and materials that have limited track records. Especially when a premium is paid to attain expected performance benefits and energy savings, failure can be both counter-productive and costly. However, using only time-tested strategies and materials may not be desirable in an environment of rapidly evolving technology and accelerated construction schedules. When extensive testing data is not available, drawing from past experience can be an effective way to address this risk of uncertainty.

Through conducting building forensic investigations in the past two decades, we have observed trends in the causes of building enclosure failures that are common across a large variety of building enclosure systems. We have also noticed new and emerging issues associated with younger, “high-tech,” buildings that were not as prevalent in more traditional construction. This presentation will highlight some of our findings, discuss emerging issues through case studies of forensic investigations, and suggest design strategies to improve the as-installed performance of assemblies with limited track records.

Grace is a registered Architect and Professional Engineer in the State of Washington. She specializes in forensic investigation, assessment, and repair design of existing structures and new construction. She is passionate about finding solutions for the built environment that are practical, economical, and socially responsible. She has expertise in modeling and analyzing the behavior of building structures and enclosure systems and applying data analytics to the building enclosure practice. Grace also takes an active role in the professional community, serving as a board member on the Seattle Building Enclosure Council.

1 AIA LU/HSW

February 2021 Monthly Meeting

When
-
Meeting Title
Wind Loading Demystified: Components and Cladding
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Dave C. Young, PE
Description

Windspeed and wind pressures are concepts that often causes confusion and anxiety for many building professions when it comes to component and cladding design and specifications. In this course, the speaker will break down the differences between Strength Design and Allowable Stress Design approaches and discuss when each design methodology is appropriate for component and cladding design. Wind load maps for Oregon have changed in the recent iteration of the 2019 OSSC resulting in lower wind pressures in many local areas potentially lowering the cost for components and cladding systems. The speaker will discuss how these lower wind pressures can be applied to specifying windows to be more structurally efficient while maintaining separate water test pressure performance criteria. Roofing and associated components will also be explored.

Over more than 30 years, Dave Young has focused his career on building enclosure consulting, from the east to west coasts with the past 15 years in Portland, Oregon. Dave spent the first decade of his career with a structural engineering consulting firm in Canada. His experience ranges from single-family homes to large high-rise commercial, institutional, and multifamily residential buildings in new construction as well as building enclosure rehabilitation, repair, maintenance and forensic investigation.

David holds a bachelor’s degree in Civil Engineering from Carleton University in Ottawa, Canada, and is a licensed professional engineer in OR and WA. He is a principal of RDH Building Science Inc. and is currently Chair of the Portland Building Enclosure Council.

1 AIA LU/HSW

January 2021 Monthly Meeting

When
-
Meeting Title
Thermal Continuity of the Building Skin: Detail-Level Insight into The Balance of Thermal Separation and Structural Support
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Will Babbington, AIA, PE
Description

The impacts of thermal bridging have long been known in the building industry. Balconies, floor/wall interfaces, shelf angles, canopies/overhangs, penetrations, and parapets have a significant impact upon energy performance, condensation resistance, building durability, and occupant comfort. This presentation will begin by exploring the importance of thermal bridging in Oregon and other climates. Additionally, the speaker will address multiple building types, sizes, wall constructions, and costs, showing numerous real-world examples showing how thermal bridging can be mitigated at numerous conditions around the building skin.

Will Babbington is the Facade Design Director and Principal at Studio NYL. He has designed and realized award-winning structural and skin projects which merge high performance, high design, and constructability. Will is also the current National Chair for the Building Enclosure Council as well as Past-Chair for BEC-Colorado. He is a representative for AIA National on the ASHRAE 90.1 Envelope Subcommittee, a voting member on the ASTM Committee E06 on Performance of Buildings, and a developer and trainer for ASTM’s / NIBS’ new Building Enclosure Commissioning (BECx) certificate program.

1 AIA LU/HSW

December 2020 Monthly Meeting

When
-
Meeting Title
Modern Architectural Sealants
Location

Live Zoom Webinar. Pre-registration is required at the link below.

Presenters
Steve Lawrey, AIA
Description

Properly designing, installing, and maintaining sealant joints will prolong the life of any structure. When exterior sealants fail, the integrity of the entire building is at risk. Yet, when selecting and specifying joint sealants for their projects, architects and specifiers are faced with a myriad of options. This program will aid design professionals in making sense of the many considerations. The program presents fundamental joint sealant concepts, including formulation chemistries, applications, specification classifications, performance characteristics, preconstruction testing, joint design criteria, and application procedures. ASTM C 920 Standard Specification for Elastomeric Joint Sealants is discussed and used as the basis for information presented.

Steven Lawrey, AIA, CSI, CCPR, CCS, CCCA, LEED AP, NCARB is Pecora Corporation’s building science engineer and architectural services specialist. A registered architect in New Jersey and Pennsylvania, his career has focused on the technical aspects of architecture and construction. Armed with a solid background in design development, detailing, construction drawings, and construction administration, over a 15-year span Steve researched, coordinated, and wrote construction specifications for over 300 commercial construction projects, including health care, historic preservation, and corporate. Since reinventing himself as a building product manufacturer’s trusted advisor nearly 10 years ago, Steve has provided technical leadership and guidance to construction project teams, manufacturing and educational associations, and standards organizations. In particular, he has responded to countless requests from facility owners, design professionals, and contractors for unique project-specific product and application solutions; made product/application recommendations based on specification interpretation; oversaw model code and product compliance; and managed product testing projects. He champions Pecora’s sustainable product initiatives and is a 20-plus year CSI member having served as president of the Philadelphia chapter and on the board of the Middle Atlantic Region.