Choosing Windows: New Report Addresses Performance and Cost

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When you choose windows for a project, you need to find the right balance among seven key decision drivers, including energy and comfort performance, cost, aesthetics, durability, and more.

BuildingGreen's special report—Better Window Decisions: Mastering the Performance and Cost Options—dives deep into these topics, giving you the framework you need to make an informed decision.

Among many other topics, this 55-page special report discusses strategies that save money, like avoiding overglazing: you probably don't need as many windows as you think.

The report provides detail on the anatomy of a high-performance window: the ins and outs of low-e coatings, warm-edge spacers, and gas fills, as well as the price, performance, and sustainability of different window frame materials.

A key topic is how to use NFRC ratings—not only the basics of U-value, VT, and SHGC, but also more technical details: CR (condensation resistance) and AL (air leakage).

The report also takes a look at ultra-efficient windows, including the difference between European and North American window specs (hint: it's not just the metric system).

Visit Better Window Decisions to get your report. (EBN subscribers who are logged in will automatically get a reduced price.) See below for continuing education information for report buyers who also subscribe to EBN or BuildingGreen Suite.

– Tristan Roberts


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Continuing Education

The American Institute of Architects (AIA) has approved this course for 3 HSW/SD Learning Units. The Green Building Certification Institute (GBCI) has approved the technical and instructional quality of this course for 3 GBCI CE hours towards the LEED Credential Maintenance Program.

Learning Objectives

Upon completing this course, participants will be able to:

  1. Understand the energy metrics that inform how windows affect energy loads
  2. Describe ways to avoid air leakage and condensation
  3. Discuss the range of options for improving the performance of existing windows
  4. Detail at least five window technologies or components
  5. Explain the function of at least three exterior window attachments and at least three interior window treatments
  6. List three ways to reduce bird fatalities from collisions with windows

To earn credit, download and read the report, then make sure you are logged into your personal BuildingGreen account, return here, and take this quiz.

May 2, 2012