The September 14th webinar will cover the building envelope provisions of the Seattle and Washington state energy codes for “commercial buildings,” highlighting requirements that are new to this year’s code and the differences between the Seattle and State codes. (“Commercial buildings” include multifamily buildings taller than 3 stories.) Discussion topics will include maximum fenestration area, concrete balconies, vestibule requirements, air leakage testing, C406 credits, envelope alterations, and more. Duane Jonlin, FAIA, will explain the code requirements, while special guests Denali Jones and Jason Acosta of RDH, and Graham Wright of Passive House Institute US. will discuss design concepts for compliance. Q&A time to follow.
Learning Objectives:
1. Reduce energy use and carbon emissions through optimal envelope design
2. Identify significant new envelope-related code provisions
3. Understand thermal bridging and envelope trade-off options
4. Choose between envelope improvements and HVAC improvements for multifamily
5. Correctly apply code requirements to envelope alterations 
6. Ensure air leakage control solutions are effective
*Eligible for 2 AIA Learning Units*

Brought to you in collaboration with the Lab at Seattle City Light and Seattle Department of Construction & Inspections

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DJ smile.pngDuane Jonlin, FAIA | Energy Code and Energy Conservation Advisor, Seattle Department of Construction and Inspections

Duane Jonlin is the “Energy Code and Energy Conservation Advisor” for Seattle’s Department of Construction and Inspections, and for eight years chaired the Energy Code Technical Advisory Group for the Washington State Building Code Council.  At the national level, he is a voting member of both the ASHRAE 90.1 Committee and the ICC Commercial Energy Code Committee, and serves on several national advisory committees. Prior to taking his position at the City of Seattle, Duane was a principal at NBBJ, with 30 years’ experience designing complex projects as a technical architect. He is a featured speaker nationally on issues of energy efficiency and energy regulations, and in 2016 was elected to the American Institute of Architects College of Fellows.


Denali 2019 Photoshoot.jpgDenali Jones, PE | Associate, Senior Project Manager, RDH

Denali's work is focused primarily on new construction projects, reviewing the design and constructability of building enclosures to ensure the primary control layers are maintained through all assemblies, details, and fenestration systems. Denali also regularly performs field review of ongoing enclosure construction, verifying conformance with project details and manufacturer’s instructions, and troubleshooting complex interfaces which have not been adequately detailed.

Denali is also regarded as an industry expert at air leakage testing. He has extensive experience conducting whole-building air leakage testing on large buildings and has led training seminars throughout North America. He is often consulted by code officials about air leakage testing procedures and results and has contributed to several national air leakage testing protocols and standards including ASTM E3158 as well as the US Army Corps of Engineers Air Leakage Testing Protocol.


headshot.jpgJason Acosta, PE | Building Science Engineer, RDH

Jason has worked as a building enclosure consultant at RDH Building Science in Seattle for the past 6 years and is a licensed engineer in the State of Washington. At RDH, Jason is a Building Science Engineer and is responsible for building enclosure design review as well as field review to ensure the project is built in conformance with drawings and specifications. He manages energy code permit submittals for a variety of new construction and existing building projects and specializes in thermal modeling. Prior to arriving at RDH, Jason received a Master of Science degree in Architectural Engineering at the University of Colorado and interned at NREL while pursuing this degree.



Building Envelope


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