Technical Education for Building Envelope Professionals
November 13-14, 2017
Omni Orlando Resort ChampionsGate, Orlando Florida
Continuing Educational Credit
12.0 Continuing Educational Hours from RCI, Inc.
Attendees earn up to 12 Continuing Educational Hours (CEHs) from RCI.
12.0 Learning Units and Health Safety Welfare (HSW) Credit from AIA
Members of the American Institute of Architects (AIA) earn up to 12 Learning Units (LUs) reported directly to AIA. AIA members earn up to 12 Learning Units. All programs, except Roofing and Design Professional Warranties qualify for HSW credit.
November 13, 2017
A Field Study of Thermal and Hygrothermal Performance of Attics With Various Retrofitting Strategies
The field performance of energy and ventilation retrofitting strategies in attics was studied in a hot, humid climate to reveal their hygrothermal performance and potential net energy savings. Attics with building integrated photovoltaics (BIPV) were included in this study. The speakers will discuss observations, sheathing temperature, and partial pressure measurements to illustrate moisture flow and heat flow in seven attics with various retrofitting roofing assemblies: below or above sheathing insulation, unvented or 1/300 to 1/150 attic ventilation, with increasing solar reflectivity, with radiant barriers, with BIPV, or underlayment permeability. The introduction of BIPV over roof decks was studied by increasing roof reflectivity for their potential thermal and moisture benefits. A cyclic moving of moisture in and out of the depth of the roof was observed when permeable spray foam was applied to the underside of the roof deck. The moisture transfers back to the attic air as solar irradiance bears down on the roof.
Ming Shiao, PhD — GAF, Parsippany, NJ
Ming L. Shiao currently holds the position of principal scientist with GAF Corporation. He has been conducting roofing research and product development for the past 23 years. Shiao has authored or coauthored over 20 publications and holds more than 50 U.S. patents. He received the 100 R&D Innovation Award in 2012 and the Presentation Excellence Award from ASTM Committee D08 in 2003. Shiao received his PhD in mechanical engineering from the University of Massachusetts, Amherst, in 1993.
William Miller, PhD, PE — Oak Ridge National Laboratories, Oak Ridge, TN
William Miller’s work experience includes 37 years of research in building science, vapor compression refrigeration systems, and heat absorption and mass transfer. He holds a joint faculty position with the University of Tennessee at Knoxville’s College of Engineering and teaches part-time in the mechanical, aeronautical, and biomedical department. He has worked with the Tile Roof Institute, PolyFoam Corporation, the Metal Construction Association, the Copper Development Association, Louisiana Pacific, Billy Ellis Roofing, SPRI, and GAF. Current work focuses on developing and demonstrating high-performance roof and attic systems with the support of Owens Corning.
Nonpresenting coauthor: Sudhir Railkar, GAF
Orders of Failure in Building Skin Design and Construction
The design of high-performance building skins in a 21st-century city demands more forethought than building codes or zoning ordinances can anticipate. This session will explore, through forensic case studies, why newly built high-performance skins fail with the lens of an analytical tool called the “Orders of Failure.” These orders of failures organize conventional typologies of building skin failures, such as air, water, thermal, structure, glass, finish, and acoustics, by correlating them with three spatial dimensions and the fourth dimension of time. Using the information developed by these matrices, the speakers will discuss common myths of building skin design and the need for alternative bidding and value-engineering approaches that maintain building skin design integrity and utilize state-of-the-art prefabrication technologies to assure delivery of durable, high-performance building skins that enhance comfort and adapt to the seasons in the 21st-century city.
Jeffrey Ng, LEED AP — Intertek, New York, NY
Jeffrey Ng is an architect with over 35 years of experience integrating art and science in adaptive high-performance building skin designs. He has consulted on innovative award-winning national and international architectural projects. He has presented in numerous conferences, including the 2017 AIA National Convention, 2013 Façade Design and Delivery Conference, and the 2010 BESS Symposium in Cal Poly in Pomona. Prior to joining Intertek, Ng was VP and lead building skin consultant at Thornton Tomasetti. He has been associated with leading architectural firms Ehrenkrantz & Eckstut, Davis Brody, Cossutta Associates, I. M. Pei & Partners, and S.O.M.
Jennifer Keegan, AIA — Intertek, Blue Bell, PA
Jennifer Keegan has 18 years of experience as a building enclosure consultant specializing in assessment, design and remediation of building enclosures. She has investigated failures and provided construction administration, condition surveys, and design per reviews of residential and commercial façades; expert witness; and litigation services. Utilizing her expertise in the built world, Keegan brings depth and focus to building enclosure commissioning and a proactive team approach to meet project performance requirements.
Nonpresenting coauthor: Matthew Ridgway PE, LEED GA, Intertek
You’ve Lost That Sealing Feeling: Sealant Restoration for High-Rise Buildings
Sealant joints typically represent the smallest part of the building enclosure; however, failures at these interfaces represent the largest source for moisture and air infiltration issues. For larger facilities with miles of sealant, replacement is a major undertaking and may take months or even years to complete. The presenters will discuss methods of evaluating existing sealant joint conditions, sealant joint design best practices, mock-up installation recommendations, sealant joint preparation, application processes, and construction quality control assurance.
Michael Phifer, RRO, REWO, CIT — Terracon Consultants, Inc., Charlotte, NC
Michael Phifer is a graduate of the University of North Carolina at Charlotte with degrees in civil and environmental engineering. He has served as a staff engineer in the facilities engineering division of his firm since 2013. Phifer’s experience includes building evaluation, design, peer review, and quality assurance for building enclosure systems. He has managed building envelope diagnostic testing teams for new and existing construction projects utilizing AAMA and ASTM standard.
Brett Eichler, RRO, AIA, CDT — Terracon Consultants, Inc., Charlotte, NC Brett Eichler has worked for 20 years at several architectural and engineering firms. He specializes in waterproofing design of building enclosure systems. Eichler received his bachelor’s degree in architecture at the University of North Carolina at Charlotte. He is involved in the investigation and repair design for multifamily, commercial, and institutional buildings. Eichler recently managed a sealant reinstallation project for a high-rise tower, which included approximately 115 miles of sealant.
A Simple Solution: An SPF Retrofit to Stop Leakage
The presenters will offer a case study of a wellness building in Iowa that, during its first winter, had icicles on the roof eaves, and interior water leakage during its first spring. Investigators found significant deficiencies in the fiberglass batt wall insulation and vapor retarder that allowed warm and humid interior air to migrate through the envelope and condense and freeze as it exited the building. A repair was performed that included replacing the existing insulation and vapor barrier with new SPF as a thermal and air barrier. Whole-building air testing was used before and after repairs to prove the improvement in airtightness.
Bruce Kaskel, RA, SE — Wiss, Janney, Elstner Associates, Inc., Chicago, IL
Bruce Kaskel has expertise in exterior wall systems related to glass, glazing, water infiltration, corrosion, structural adequacy, energy performance, anchorage devices, and durability. His projects include aluminium and glass curtainwalls, masonry, exterior windows and doors, and precast concrete and stone panels. Kaskel has provided exterior wall consulting services during design and construction of new buildings, including serving as the building envelope commissioning agent (BECx).
Jennifer Schneider, RA, LEED AP — Wiss, Janney, Elstner Associates, Inc., Chicago, IL
Jennifer Schneider has been involved with numerous projects related to the inspection, investigation, and repair of distressed conditions in existing buildings. Her experience also includes building enclosure commissioning (BECx) and peer design review for new construction, applying her experience in modes of leakage, condensation, and distress to proposed detailing. Schneider applies thermal and hygrothermal modeling to her evaluations of exterior wall systems.
Roof-Water Catchment and Filtration Systems
Many municipalities are encouraging the design of buildings with rainwater cistern storage as an economical and environmentally conscious means of accessing and recycling water. These systems provide an on-site source of water for landscaping, agriculture, and fire suppression. When combined with new filtration and ultraviolet sterilization systems, roof catchment water can also be filtered and purified for use as potable water. This presenter will demonstrate different issues associated with roofing materials used with water catchment systems for potable water systems. Discussion will focus on the history of stormwater catchment systems from around the world, methods of calculation of volume of stormwater collectable per sq. ft. of catchment area, understanding of stormwater filtration and new purification techniques, and conservation value of water catchment in arid climates.
John Barton, RRC, AIA — John Barton Architects, LLC, Santa Fe, NM John Barton often designs domestic roof-water catchment systems for the high desert area of Northern New Mexico. He is an award-winning registered architect and roof consultant with 25 years of experience. Barton’s work has encompassed a range of artistic and technical projects for educational, governmental, private, and nonprofit agencies. He is past president of the Santa Fe Chapter of the American Institute of Architects.
Nonpresenting co-author: Mayrah Udvardi, John Barton Architects, LLC.
When Form Really Does Follow Function: Aesthetics Informed by Environmental Conditions
There is a common misconception that historical buildings styles and ornamental articulation are only aesthetic statements. Historically, buildings were empirically designed, accounting for climate/environment, culture, and local availability of materials. With the rise of environmentally responsible design and carbon-footprint awareness, a survey of architectural history can provide valuable insight into how to make our buildings work better. This presentation will explore historical building typology, ornamental building components, and materials, and their intentional use to improve thermal comfort, reduce maintenance costs, and minimize water infiltration. The speakers will discuss how designers are revisiting these concepts today.
Edward Gerns, RA, LEED AP — Wiss, Janney, Elstner Associates, Inc., Chicago, IL
Edward Gerns has extensive experience with the investigation and repair of existing buildings. He has performed numerous evaluations of historical masonry façades and overseen preparation of documents for the repair of masonry buildings. Integration of environment and architectural design has been of interest to Gerns for over 30 years.
Rachel Will, PE — Wiss, Janney, Elstner Associates, Inc., Chicago, IL Rachel Will performs building envelope evaluations and investigations of distressed and deteriorated conditions in existing buildings. She assesses how architectural ornaments serves as function to help maintain portions of the exterior envelope. Her expertise includes documentation and investigation of building façades, as well as preservation and repair of historical buildings.
November 14, 2017
Designing Rooftop Amenity Spaces: Complexity, Coordination, and Conflict Avoidance
Rooftop amenity spaces can offer building owners significant value. Successfully incorporating these spaces into the design of a rooftop requires thorough coordination, given the convergence of cross-disciplinary design requirements, complexity of amenity overburden materials (e.g., pavers, pools, vegetative roofing, etc.), and dimensional constraints associated with the roof plan and roof assembly depth. This presentation explores key roof amenity design decisions that warrant scrutiny early in the design phase, including waterproofing selection, drainage coordination, energy conservation, fire resistance, wind resistance, maintenance and fall protection, and associated building code requirements in both new and retrofit applications.
John Karras — Simpson Gumpertz & Heger, Waltham, MA
John Karras is a professional civil engineer with more than 14 years of combined design and construction management experience with commercial projects. His expertise encompasses building enclosure design, consulting, construction phase services, and investigation services—in particular, creatively collaborating with design and construction teams to navigate roofing and waterproofing challenges.
Sarah B. Rentfro — Simpson Gumpertz & Heger, Washington, DC
Sarah Rentfro received her BS from the University of Maryland and her MS from Stanford University. She has contributed to a variety of building enclosure projects in the Mid-Atlantic and Southeastern states, including several vegetative roofing, plaza, and amenity roofing assignments. Rentfro’s work includes design consultation, field investigation work, and construction administration.
Nonpresenting coauthor: Joshua B. Kivela, PE, Simpson Gumpertz & Heger Inc.
High-Performance Buildings: Integrating the Wall and Roof Air Barriers
Controlling unintentional air leakage (infiltration and exfiltration) across building enclosures is a key factor for achieving high-performing buildings. Continuity between air barrier materials and assemblies is essential to controlling air leakage. This presentation will provide practical answers to the question: “What does it take to construct a high-performance building that maintains air barrier continuity across the full enclosure?” Quality assurance and quality control measures, including whole-building air leakage testing and building enclosure commissioning, will be discussed, with examples showing the challenges, equipment, and coordination involved in achieving these measures. Case studies will be presented to highlight project-specific examples.
William Waterston, RRC, AIA — Wiss, Janney, Elstner Associates, Inc., Boston, MA William Waterston is a registered architect and a Registered Roof Consultant. He has broad-based architectural experience in both waterproofing and roofing systems, which provides him with a unique perspective for solving building enclosure challenges for new and existing buildings. Waterston provides building enclosure assessments and building commissioning services, and performs building enclosure testing of components and completed buildings. He has authored several articles on roofing material choices and roofing practices. Waterston has presented at ABX, RCI, Inc. educational events, and Construction Specification Institute meetings and symposia.
Nonpresenting coauthors: Ben Lueck, RA and Wei Lam, PE of Wiss, Janney, Elstner Associates.
Flashing of Curtainwall and Storefront Systems in Commercial Applications
Flashing of high-end commercial and institutional curtainwall and storefront systems is traditionally a combined effort of the project architect, the installation contractor, and the system manufacturer. Frequently, however, details provided by the architect or the manufacturer fall short, leaving the flashing to be installed in the field without forethought to design. The purpose of this presentation is to provide insight into proper flashing techniques for both curtainwall and storefront systems that can be used proactively by participating parties to ensure the integrity of the building envelope is preserved when constructed.
David Cannon, AIA — Nelson Forensics, Plano, TX
David Cannon has over 35 years of experience as an architect. He has been involved in the design, creation of construction documents, and construction administration for several different building types. These include retail, mixed-use developments, high-rise hotels, office buildings, university buildings, medical buildings, regional malls, multifamily housing, industrial buildings, and churches. His primary areas of research and expertise have been in building envelope design and construction, building code analysis, and evaluation of the “standard of care” for architects.
Matthew Smith, AIA — Nelson Forensics, Plano, TX
Matthew Smith has over 10 years of architectural design and forensic architecture experience. He has performed forensic evaluations of buildings throughout the United States and been involved in the design and project management of multiple healthcare projects. Smith’s primary areas of focus and expertise include building envelope and flashing systems, window systems, stucco and EIFS veneer systems, architectural design and detailing, and review of building codes and accessibility standards.
Nopresenting coauthor: Amanda Nogay, Nelson Forensics
Roofing and Design Professional Warranties
The financial and professional consequences of using unclear warranty language can be huge. Nonspecific warranties and contract provisions have the potential to expose the warrantor to far more liability than intended and may also give other parties greater recourse than expected.
Pulling from 20 years’ experience representing roofing manufacturers, building owners, design/build firms, engineers, and contractors, the speakers will demonstrate that warranty language is often an overlooked issue. Discussion will focus on how courts analyze ambiguous warranties to create unexpected liabilities and greater financial ramifications. The speakers will offer suggested language to use to hopefully avoid unintended consequences.
Brian Must — Metz Lewis Brodman Must O’Keefe LLC, Pittsburgh, PA
Brian Must has spent the past 20 years representing manufacturers, building owners, design/build firms, engineers, and contractors in the commercial roofing industry. He has represented various roofing entities in claims or litigation involving hospitals and healthcare facilities, schools and universities, government buildings, and high-rise condominiums. His experience ranges from negotiating and resolving commercial roofing claims and lawsuits to trying cases before federal and state courts and commercial arbitrations.
Joshua Baker — Metz Lewis Brodman Must O’Keefe LLC, Pittsburgh, PA
Josh Baker has represented roofing manufacturers and contractors in alleged roofing failure and contractor error disputes. He also has experience with overall claims management, including policies and procedure development and with writing effective warranties.
Masonry Movement Joints
The national model masonry code requires building designers to indicate type and location of movement joints on the project drawings. Additionally, the veneer section of this code requires building designers to design and detail the veneer to accommodate differential movement. The speaker will discuss how masonry materials move, the different types of masonry movement joints, and give recommendations for locating and constructing movement joints. Attendees will be taught about control and expansion joints at corners, shelf angles, and the top of walls; loose vs. fixed lintels; shrinking veneers; open-jointed clip and rail rainscreen walls; load-bearing CMU walls; and adhered veneers.
Pat Conway, AIA — International Masonry Institute (IMI), Mt. Horeb, WI
Pat Conway is IMI’s national director of education, codirector of its masonry technical team, and faculty member of the association’s Contractor College. He is a recipient of RCI’s Richard M. Horowitz Award for technical writing. In 2014, the Mason Contractor’s Association of America (MCAA) gave Conway the Vision Award for creative efforts in masonry education and industry development. He is a frequent national presenter, university lecturer, and author on numerous masonry subjects.
Curtainwall Failures – Design or Products
This presentation will examine recent window and curtainwall assembly failures and performance issues for insulated glazing units (IGUs). With the advent of the globalization of the construction industry, façade glazing systems are beginning to experience new types of failure in their assembled components, resulting in performance issues with high-rise projects. The speaker will present forensic study results from a dozen high-rise buildings with curtain and window wall assembly failures.
Karim Allana, RRC, RWC, PE — Allana Buick & Bers, Inc., Palo Alto, CA
Karim P. Allana is the CEO and senior principal of his firm. He is a licensed professional engineer in California, Hawaii, Nevada, North Carolina and Washington. Allana has been in the construction industry for over 30 years. He specializes in forensic analysis and sustainable construction of roofing, waterproofing, and the building envelope. Allana has acted as a consultant and expert witness in more than 250 construction defect projects. He is a frequent speaker and presenter at professional forums.