Wednesday, March 17, 2010

April Chapter Meeting with AIA

Impact of Green Building Code Changes on the Building Envelope

Wednesday, April 14, 2010


Rock Bottom Brewery
Unico Room
1333 Fifth Avenue
Seattle, WA 98101

11:30 AM - 12:00 Noon: Registration & Social
12:00 Noon - 1:15 PM: Lunch Served & Program

This presentation will examine how energy codes affect building professionals in the design and construction of new buildings and the redesign and renovation of existing buildings. With a focus on Washington State and Seattle building codes, we will explore the challenges with current building envelope practices, and strategies to meet the new energy code requirements.

At this meeting, you will learn to:

  1. Calculate the overall R-value of a wall assembly with thermal bridging through the building structural frame using tables in the energy code.

  2. Quantify the effect of a continuous air-barrier on energy use for heating and cooling and on meeting energy code requirements.

  3. Explain why the design of the building envelope should be the first priority in designing low-energy buildings based on recommendations from research and professional associations.

  4. Describe the purpose of elimination parametric energy-modeling used in pre-design to give the design team the data to set and prioritize low-energy design strategies.


Medgar Marceau, PE, ASHRAE, CSI, LEED AP
Morrison Hershfield

Medgar Marceau is a licensed professional engineer and building science consultant at Morrison Hershfield. For over ten years he has been providing consulting services in the areas of environmental life cycle assessment, energy modeling, building science, and sustainability. His experience includes conducting life cycle inventories and assessments of buildings and building materials, modeling whole-building energy use, evaluating building envelopes for resistance to heat and moisture flow, and modeling heat flow through mass concrete. He received his bachelor's degree of science in engineering from the University of New Brunswick and master's degrees in applied science from Concordia University and applied mathematics from DePaul University. He is a member of ASHRAE, CSI, USGBC, and is a LEED™ Accredited Professional and Life Cycle Assessment Certified Professional (American Center for LCA).

Mr. Marceau has authored and co-authored dozens of papers and contract reports in the fields life cycle assessment, residential and commercial energy use, and sustainability.

Stephane Hoffman, M. Eng., M. Arch.
Morrison Hershfield

Stephane Hoffman is employed in the Seattle Office of Morrison Hershfield as an engineer specializing in building envelope design, rehabilitation and restoration. His background includes a mix of structural engineering, building science and architecture. Stéphane specializes in the assessment, design and construction of building envelope systems with respect to water penetration, air leakage, vapor diffusion and thermal efficiency. His work experience has included a wide range of assemblies from low-rise wood frame residential construction to high-rise commercial developments. Stéphane has a Master of Engineering in Building Rehabilitation from McGill University and a Master of Architecture in Historic Restoration from the Université de Montréal. He is a licensed engineer in British Columbia as well as other Canadian provinces.

Event Co-Presented By:

Please Make your reservation by Friday, April 9

Cost: ASHRAE/AIA Members $35; Guests $40; Students $15

To make your reservation go to the Acteva event web site:
If you have questions regarding registration, contact Jacquie Cuttitte at or 206-262-1010.
For directions to Rock Bottom Brewery:

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