ASHRAE Journal - July 2012 - 66

BUILDING SCIENCES
Sealant for Air Control Layer Continuity Stool and Apron Rimboard, Plywood, etc.) 2x Wood End Dam Membrane Clamped to Inside Shoulder to Provide Continuous Air and Water Control Aluminum Window Aluminum Window

Steel Stud Framing

Precast Sill Thermal Control; Extruded or Expanded Polystyrene, Water, Air and Vapor Control Thermal Control; Extruded or Expanded Polystyrene, Water, Air and Vapor Control

Figure 6: Vertical Alignment. Thermal control of the window frame and IGU lines up with the thermal control layer of the

Exterior Sheathing Interior Finish

The best thing to do is to take your structural engineer to lunch and discuss relieving angles, window attachment and balcony thermal breaks. Enjoy a nice moment with your engineer.

Figure 7: More Vertical Alignment. Thermal control of the window frame and IGU lines up with the thermal control layer of

Acknowledgments
Figures 3 – 7 courtesy of John Straube, High Performance Enclosures. Building Science Press, 2012.

Joseph W. Lstiburek, Ph.D., P.Eng., is a principal of Building Science Corporation in Somerville, Mass. Visit www. buildingscience.com.

The
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Standard for Ventilation and Indoor Air Quality
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Manual
ANSI/ASHRAE Standard
2010

62.1User’s
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ANSI/ASHRAE Standard 62.1 is the recognized standard for ventilation system design and acceptable IAQ. It provides the information you need to ensure that your project is designed according to the latest requirements. NEW in the 2010 revision:

ANDARD ASHRAE ST
Ventilation le for Acceptab lity door Air Qua In
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ANSI/ASHRAE

by s, American Society the of E Board of Director tee, the ASHRA Heating, Refrigerating and Standards Commit by the ASHRAE Air-Conditioning Engineers, for approval dates Inc. See Appendix J ds Institute. n National Standar tee (SSPC) for which and the America d Project Commit of addenda or revia Standing Standar maintenance by regular publication of under continuous nted program for change to any part This standard is on requests for established a docume from us action tee has ic form the Standards Commit res for timely, documented, consens be obtained in electron edition of and deadlines may procedu The latest sions, including l form, instructions, from the Manager of Standards. E change submitta ) or from ASHRA ) or in paper form the standard. The (www.ashrae.org rg. Fax: 404site (www.ashrae.org from the ASHRAE Web site orders@ashrae.o ed the ASHRAE Web d may be purchas and Canada). 30329-2305. E-mail: (for orders in US NE, Atlanta, GA an ASHRAE Standar 1791 Tullie Circle, free 1-800-527-4723 Customer Service, 404-636-8400 (worldwide), or toll ne: ions. 321-5478. Telepho hrae.org/permiss ion, go to www.as rs, Inc. For reprint permiss ditioning Enginee ating and Air-Con of Heating, Refriger American Society ISSN 1041-2336 © Copyright 2010

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62.1
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spreadsheets that assist in ventilation rate procedure calculations.

ASHRAE Journal

July 2012

ASHRAE Journal - July 2012

Table of Contents for the Digital Edition of ASHRAE Journal - July 2012