Windows and Fenestration: Basics and Beyond

Windows are a key part of the building enclosure, but they are also the costliest, most fragile, and worst thermally performing component. We will present on windows from our viewpoint as building enclosure consultants and forensic failure specialists. We will explore energy and comfort impacts of glazing and glazing ratios, and then move on to water control detailing and the window-to-wall interface. Covered topics will include sill pan and rough opening flashings, “innie” vs. “outie” windows in thick walls, two-stage joints and drainage, air barrier detailing, condensation problems, and window water leakage testing. We will also discuss storefront and curtain wall glazing systems and their associated detailing.

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Event Time: 

Wednesday, March 29, 2023 - 10:30am to 12:00pm

Room / Location:
Harbor 1

CEU Information: 

Approved for 1.5 credit hours toward AIA (LU), BOC, BPI, GBCI (BD+C, ID+C, WELL), and NARI certification. Credit is offered for each full conference day toward MA CSL, PHI, Phius, and RESNET certification.

Learning Objectives:

  • Weigh the energy impacts associated with glazing and glazing ratios.
  • Implement the concepts for sill pan designs and window-to-wall interface junctions.
  • Estimate the relative condensation risks associated with various window materials and designs.
  • Explain the water control and thermal detailing differences between storefront and curtain wall glazing.

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