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What’s Lurking in the Shadows?: A Problem with Shadow Box Condensation

BEC
September 09, 2016
12:00 pm - 1:30 pm
Location
11 East Madison, Suite 300, Chicago, IL (Gensler)
File attachments
Posted by Jeff Diqui

AIA Credit: Yes (1.0)

ABSTRACT:

If you had a building curtain wall leak, would you assume it’s rain water?  Maybe so.  But what if  there was no recent rain, AND if it was really cold recently?  Then it might be condensation.  If you wanted to find out the source, where would you look? In this case study, you would look at your curtain wall spandrels – constructed of shadow box design.  Here you would find ingredients that were ripe for condensation. After finding this problem, WJE sought to figure out a fix.  Follow along with how we found the coldness lurking in the shadows – and brought it out into the warming light.


LEARNING OBJECTIVES:

  1. How are shadow box spandrels meant to be constructed?
  2. What can happen if there are construction deficiencies?
  3. How would you diagnose the problem and look for solutions?
  4. What are pros and cons of the possible solutions?


PRESENTER BIO:

Bruce Kaskel, Principal, Wiss Janney Elstner (WJE). Since joining WJE in 1985, Bruce Kaskel, Registered Architect and Structural Engineer, has investigated and designed repairs for distress conditions in existing buildings. He has expertise in exterior wall systems related to glass, glazing, water infiltration, corrosion, structural adequacy, energy performance, anchorage devices, and durability. Mr. Kaskel's projects include aluminum and glass curtain walls, masonry, exterior windows and doors, and precast concrete and stone panels. Likewise, he has provided exterior wall consulting services during design and construction of new buildings, including serving as the building envelope commissioning agent (BECx).

Mr. Kaskel has authored papers on exterior facade materials, on glass and facade testing, on the history of glazing systems, and on structural failures of walls. He has presented seminars on aluminum and glass curtain walls, exterior wall systems design and repairs, and lessons learned from cladding failures. Mr. Kaskel has guest lectured to graduate and undergraduates at Purdue University and Illinois Institute of Technology.

RSVP:

For BEC Chicago members, an RSVP invite will be sent out approximately 7 to 10 days in advance of event. For non-BEC Chicago members interested in atttending, you may contact Jeff Diqui at jdiqui@stocorp.com to request an invite. The invitation will include a link to an RSVP.