R. Christopher Mathis
MC2 – Mathis Consulting Company
P.O. Box 18055
Asheville, NC 28814
United States
(828) 678-3500
Region: IV
Honorarium: $250 to ASHRAE Research
Gift checks should have the following verbiage :
“Gift made on behalf of DL NAME,
visiting Distinguished Lecturer to

R. Christopher “Chris” Mathis has spent the past 30 years focusing on how buildings and building products perform – from energy efficiency to code compliance to sustainability and long-term performance durability.

Chris received his undergraduate degree in Physics from the University of North Carolina at Asheville. He received a Master of Science in Architecture Studies from MIT where his graduate work focused on energy use in buildings. He has served as a Scientist in the Insulation Technology Laboratory at the Owens-Corning Fiberglas Technical Center, was the Director of the Thermal Testing Laboratory for the National Association of Home Builders Research Center, and Director of Marketing for Architectural Testing, Inc., a private laboratory specializing in the performance of buildings and building products, particularly fenestration performance testing.

Chris is an active participant in Standards and Code development at ASHRAE, NFRC, ASTM and the ICC. He was a founding member and served for four years as the first Director of the National Fenestration Rating Council, the non-profit organization that developed the nation’s energy performance rating and labeling system for windows, doors and skylights.

Chris has been a member and active participant in ASTM committee E06 on Performance of Buildings since 1984. During his tenure at ASTM he has worked on numerous task groups and subcommittees developing a range of standards and test methods addressing window performance, window installation, thermal testing of windows, wall system performance and whole building performance. He currently chairs E06.51.11 addressing window installation standards. He is also a member of committee C16 on Insulation and E60 on Sustainability. Chris currently chairs the Built Environment Advisory Committee at ASTM.

Chris is a 30-year member of the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE). In ASHRAE he has worked on window thermal test standards, national model codes for commercial buildings (ASHRAE 90.1), model codes for residential buildings (ASHRAE 90.2) and is the energy consultant to Standard 189.1 – ASHRAE’s model code for sustainable commercial buildings. He is also the energy consultant to the Chapter Technology Transfer Committee. Chris has been recognized as an ASHRAE Distinguished Lecturer, conducting seminars on a variety of building science, energy efficiency and sustainability topics across the US and worldwide.

Chris has published numerous technical papers at ASHRAE and presented his work at a variety of national and international conferences. His publications include technical papers on: advanced test methods for insulation materials and wall systems; daylighting design and assessment techniques; off-peak cooling techniques for commercial office buildings; new residential and commercial energy codes; and metrics for environmentally preferable products. He has written numerous engineer-, architect-, builder- and consumer-targeted articles and guides on various building and product performance issues. He is the author of Insulating Guide - a book for home builders providing insulating best practices for many of the most common home building details. He is the co-author of Is Your Home Protected from Water Damage? A Homeowner’s Guide to Water Damage Prevention published by the Insurance Institute for Business and Home Safety.

Chris has been involved in state and national code development since 1988. He was selected four times to serve on the International Energy Conservation Code Committee of the ICC, working to refine and improve the IECC – our national model energy code. He was also selected to be a member of ICC’s Sustainable Building Technology Committee helping to draft a national model code for sustainable buildings. He served on the ICC’s first Code Development Committee for the International Green Construction Code.

Chris is a member of the Board of Directors of BETEC – the Building Enclosure Technology and Environment Council, a council of the National Institute of Building Sciences. He also served six years on the Board of Directors of the Energy and Environmental Building Association (EEBA).

Chris provides a number of accredited training seminars for architects, engineers, builders, manufacturers, code officials, utility program developers and others addressing these myriad building science and building performance issues – from improved building energy efficiency and comfort to energy and power planning to improved building and energy codes to the challenges of sustainability and green building. He is a frequent keynote speaker at various national conferences and events.

Chris is also an on-going student of about 90 million years of sustainability and building science through his activities as a beekeeper. He lives and works near the farm he grew up on in the beautiful mountains of Western North Carolina.

Energy Efficiency in Residential Buildings

Recent advances in building technologies have made possible dramatically greater levels of energy efficiency in homes than ever before.  From new fenestration and glazing technologies, insulation innovations, air sealing, advanced HVAC systems and new diagnostic tools all create new opportunities for anyone working with residential buildings.  This presentation will provide attendees with new information about residential building technologies and ways to meet the new family of energy codes and “beyond code” programs.

A Window on the Future:The Role of Fenestration in Building Performance

There are now thousands of new, different window and glazing technologies available to both residential and commercial building professionals.  Many of these technologies have dramatic impacts on HVAC sizing, peak loads and thermal comfort.  This presentation will provide attendees with valuable information concerning key performance indices necessary in making energy efficient fenestration product decisions.  Implications on HVAC sizing, peak loads and human comfort will be addressed.  Implications for existing and new buildings will be discussed.

Energy Efficiency in Commercial Buildings

Advances in commercial building technologies have made possible dramatically greater levels of energy efficiency in commercial buildings than ever before.  From new lighting, fenestration and glazing technologies, insulation innovations, air sealing, advanced HVAC systems and new diagnostic tools all create new opportunities for anyone working with 90.1 and the commercial building industry.  This presentation will provide attendees with new information about commercial construction technologies for both new and existing buildings.  It will also address opportunities and challenges in meeting new energy codes and the many “beyond code” programs such as LEED, Green Globes and other green building programs.

Why Buildings Matter and the Role of ASHRAE 90.1

As our flagship standard for the minimum energy efficiency for buildings (except low-rise residential), ASHRAE 90.1 represents the Standard of Care for all certifying professionals serving the building industry. The latest version of that standard, 2016, contains dramatic changes that all certifying professionals should know. Attendees will gain a renewed perspective on the importance of buildings. Attendees will learn about the critical connections between building energy use and other social and environmental imperatives – such as available fuel supply, power trends, water use and availability, population growth, etc. Attendees will learn about critical energy, and environmental trends that will challenge the status quo building decision-making and help to prioritize delivered building performance. Attendees will learn about some of the most recent changes to 90.1, especially in those critical areas often overlooked by HVAC professionals – the building envelope provisions – as well as other changes. Attendees will be challenged to update their knowledge and understanding of the Standard and its role in delivering better buildings. The presenter has served over 15 years on the SSPC 90.1 development committee and remains an active participant in its development.

Building Science Lessons from the Honey Bee

This informative and entertaining presentation is based on an ASHRAE published paper addressing lessons we might learn from the 90 million years of evolution and building science embodied in the work and structures of the honey bee.   From temperature management, thermal storage, indoor air quality, active and passive ventilation techniques and energy efficiency, the honey bee has developed a highly efficient construction system to support its biological needs.  Attendees will be challenged to consider how we might employ these time-tested building science lessons into today’s architecture and engineering practice, as well as challenging our current definitions of “sustainability.”

How Long Will It Last? Addressing the Challenge of Sustainability

This lecture explores some of the roadblocks, pitfalls and opportunities on the road to truly sustainable buildings.  It invites the audience to question long held assumptions and habits in building design, engineering and construction, and challenges how we assess numerous building performance attributes.  From energy efficiency to durability to life expectancy, we will explore some of the challenges necessary to establish meaningful product and building performance metrics.  We will examine how these sustainability objectives fit in with ASHRAE’s minimum code standards (90.1 and 90.2), green building standards (189.1 and 189.2) and others.

Bringing ASHRAE 90.1 to the World: The Addition of Climate Zone 0

Any meaningful discussion about the performance of buildings clearly shows the increasing connectedness of critical energy, power and water issues worldwide. Combined with analysis of recent environmental trends, these shared issues define an expanding international role for all ASHRAE standards.

Now, ASHRAE Standard 169-2013, Climatic Data for Building Design Standards, provides revised climate data for building performance assessment. Standard 169 now includes data and maps for the newly minted Climate Zone 0 – addressing extremely hot, dry and extremely hot, wet climate zones that exist worldwide.

Until recently, our flagship standard on building energy performance – ASHRAE 90.1 – was silent on its application into these extremely hot climates. This presentation explores the new Climate Zone 0 and the recent changes to Standard 90.1 to expand its building performance guidance to these international locations. We will compare and contrast critical building performance requirements for Climate Zone 0 with previous editions of the standard. We will especially focus on key building envelope and air leakage requirements that critically impact HVAC decisions and ultimate building energy performance. The session will conclude with a discussion of additional areas where ASHRAE should expand its standards to address targeted building performance topics in CZ 0 and worldwide.

Recommended audience: ASHRAE members, architects, CZ 0 policy makers

ASHRAE Is In The House: Past, Present and Future Initiatives in Residential Building Performance

Residential buildings are responsible for over 22% of total US energy use. For countries worldwide, residential buildings often define the majority building energy use sector. While ASHRAE has a strong history of success in defining and transforming the commercial building sector – through Standards such as 90.1, 189.1 and 62.1 – our impact on the residential sector is not as well quantified.

This presentation focuses on “bringing ASHRAE home” – emphasizing the critically important role that all ASHRAE professionals must play in shaping and improving residential building performance worldwide. The presentation will quantify the impact residential construction has on US energy, power and water demand. We will discuss how these demands continue to rise as delivered comfort, IEQ and energy efficiency needs grow worldwide. We will review how ASHRAE has already impacted the residential building performance landscape and discuss recent initiatives to expand that influence. We will review the current ASHRAE strategic plan with respect to residential building topics and discuss how ASHRAE members can more significantly contribute to this important building performance arena.

Recommended audience: ASHRAE members, Residential Building Performance Stakeholders – especially in CZ 0 (architects, builders, utility planners, policy makers, etc.) For all residential building types (high rise residential, low-rise residential, apartments, etc.)

Primary Energy in Commercial Buildings

In the US and worldwide, “net zero energy buildings” are being prioritized as key to meeting ever-growing energy, power and economic priorities. While advances in building energy performance have made “net zero” an oft-stated goal, the question becomes more muddled when you ask “What energy? Measured where?”

ASHRAE has a long history in answering these questions, expanding many of its standards to now address diverse topics such as energy cost, source energy and carbon. This presentation provides ASHRAE members, architects, power and policy professionals with an improved understanding primary energy. We will discuss “What energy?” – providing distinction between the many various ways that building energy performance might be assessed – from site to cost to source to full fuel cycle. We will discuss the challenges of making meaningful statements and decisions about “net zero buildings” and the importance of quantifying and communicating what we actually mean. We will discuss the limitations of each “energy” definition, what is included and what is not. We will show several examples of ways to take building performance further by considering the different boundary conditions and assumptions at each point in the fuel cycle. This presentation challenges attendees to consider critical building decisions in a broader context – beyond simple payback analysis and simple site energy modeling – asking the tougher questions of the implications of building energy performance on local, national and worldwide societal challenges.

Recommended audience: ASHRAE members, architects, green building professionals, policy makers, power planners