Track 3: DELIVERY – INTERVENING INTO HISTORIC PLACES / Volet 3 : Réalisation – Intervenir dans les lieux historiques

Bronze, Steel, and Wood: An Air Infiltration Tale of Three Windows

Friday, October 13
8:30 AM - 10:00 AM

This presentation chronicles the procedures and results of in-situ ASTM testing methods by an accredited lab to determine the air infiltration/exfiltration levels and water penetration performance of historic windows before and after rehabilitation to identify areas of window leakage deficiency and to help guide appropriate rehabilitation methodologies.

Architectural Resources Group was recently involved in two separate projects that included the rehabilitation of three separate window types: wood, steel and bronze. Both buildings—the Oregon State Capitol in Salem and the Jefferson Sub-station in Portland, Oregon—are listed on the National Register of Historic Places. Both projects comprised substantial renovations that required extensive replacement of the mechanical and electrical systems and were required to meet strict energy standards as dictated by the State of Oregon and LEED. It was the intent of the design team to retain and rehabilitate the windows in both cases, but window performance criteria needed to be met in order to conform to the energy model designed by the mechanical engineer. The project team contracted with QED Lab to perform the following tests: ASTM E1105 Standard Test Method for Field Determination of Water Penetration of Installed Exterior Windows, Skylights, Doors, and Curtain Walls, by Uniform or Cyclic Static Air Pressure Difference, and ASTM E783 Standard Test Method for Field Measurement of Air Leakage Through Installed Exterior Windows and Doors.

This presentation will discuss the following:
Testing methodology before window rehabilitation and subsequent testing results
Testing methodology after window rehabilitation and subsequent testing results
How the testing before rehabilitation helped guide the team in defining the rehabilitation scope and specifications
A general overview of the window rehabilitation methods used on the wood, steel, and bronze windows

Learning Objectives:

Maya M. Foty, AIA, LEED AP

Principal
Architectural Resources Group

Maya Foty is a principal in Architectural Resources Group's Portland, Oregon office. With a Master's degree in Architecture from the University of Washington and a post-graduate degree in Conservation from Columbia University, Maya’s experience includes numerous preservation projects in the Pacific Northwest. She has worked in both the public and private sectors, and has taken several large projects through the design, permitting and construction phases. With a passion for historic buildings, Maya has extensive experience in historic documentation, building condition surveys, construction document production and construction management.

Presentation(s):

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James Maddigan

Senior Associate
Robertson Martin Architects, Inc.

Mr. Maddigan, is a Senior Associate, and Building Conservation Specialist with the firm Robertson Martin Architects, Ottawa, ON. His career in heritage conservation started in 1995 on graduation from Algonquin College with a diploma in Architectural Technology, specialization in building conservation. In 2002, he received a Masters in Conservation of the Built Environment, from the Université de Montréal. Through education, experience and training he has developed an expertise in heritage conservation, with emphasis on heritage materials, assemblies and finishes. Buildings and projects he has worked on include: Chateau de Ramezay, Library of Parliament; Rideau Hall (Residence of the Governor General); and House of Commons (Centre Block).

Presentation(s):

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Bronze, Steel, and Wood: An Air Infiltration Tale of Three Windows



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