Unitized “Mega Panel” Facade Systems: Exploring Options, Trends, and Lessons Learned

Date: May 29, 2020 12:00pm
Location: Online Zoom Webinar
Speaker(s): Christopher Grey
mega panel webinar

Friday, May 29, 2020

Eastern: 12:00 – 1:00 p.m.
Central: 11:00 a.m. – 12:00 p.m.
Mountain: 10:00 – 11:00 a.m.
Pacific: 9:00 – 10:00 a.m.

Online Zoom Webinar

aiaParticipants will earn 1.0 AIA CES Learning Unit (LU/HSW) for attending the live webinar. Please note that space is limited. Registration is free.


Prefabricated building enclosure systems have become popular in the industry because they help project teams streamline construction schedules, reduce construction costs, and improve assembly quality. The current market for prefabricated wall systems is diverse and extensive, ranging from precast concrete wall panels to unitized glass and metal curtain wall systems. In this presentation, we will discuss various approaches to panelizing and unitizing facade systems and review the practical advantages and disadvantages of each, focusing on large shop-fabricated sections of the enclosure, also known as “mega panels.” We will explore design, installation and constructability, coordination, durability, weatherproofing, thermal performance, and other practical considerations for these systems.

After attending this seminar, participants will be able to:

  • Understand and describe the basics of unitized exterior wall systems and their various forms.
  • Explain the benefits and disadvantages of each type of unitized system compared to typical stick-built wall systems.
  • Discuss practical considerations and limitations when designing and constructing unitized systems, including.
  • Review current industry trends and how these systems have been implemented successfully on projects.



chris grey sghChristopher N. Grey, P.E. | Senior Project Manager 
Christopher Grey is a member Simpson Gumpertz & Heger’s Building Technology group in Boston. He is experienced in investigating, rehabilitating, and designing building enclosure systems on a range of structures, from historic buildings to contemporary high-rise buildings. He specializes in the design, integration, construction administration, and testing of complex building enclosure systems including waterproofing, air and water barriers, roofing, rain screen cladding, and glazing systems, with a focus on design efficiency, constructability, and performance. He works directly with architects, owners, contractors, and manufacturers in both the field and office through all project phases.


  • Owners
  • Facilities Managers
  • Property Managers
  • Contractors
  • Architects
  • Attorneys