Mission Critical Building Enclosure Design
Resilient & Sustainable Solutions
Sponsored by GAF | Siplast | Presented by Jennifer Keegan, AAIA | Tim Clepper, RA, RRC, RRO, ICCce, CIT, NCARB
Live Webinar Airing on December 15, 2026 at 02:00 PM ET
Data center outages don't just affect an organization's bottom line; they impact all the businesses relying on that center for support. When designing mission-critical infrastructure, the paramount focus must be on resilience: minimizing downtime and outages through the use of redundant and durable building enclosure systems. This presentation will detail the design of durable and sustainable building enclosure assemblies, specifically focusing on robust roof systems that can withstand high winds and hail damage while also having lower embodied carbon. This will include different membrane solutions such as PVC and TPO, hybrid assemblies, and membrane attachment options. We will also cover key considerations for wall assemblies, including the critical roof-to-wall transition and how to manage penetrations through both the roof and wall assemblies.
Finally, attendees will receive a list of essential questions to ask manufacturer partners to help ensure owners have information they need, such as ESGs and, to have confidence in the final solutions.
Photo courtesy of GAF|Siplast
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As a 25+ year veteran of the building enclosure industry, Jennifer Keegan serves as the Senior Director of Building & Roofing Science for GAF and Siplast. Her career in building forensics, assessment, design and remediation provided a strong technical foundation for industry collaboration and leadership. Jennifer provides technical leadership within the industry through her involvement with AIA, CSI, and IIBEC; and as an advocate for women within the industry as the Past Chair of National Women in Roofing. |
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Tim Clepper is a Building Design Manager for GAF|Siplast in the Southwest Region of the US. Tim is a Registered Architect (RA) in Texas and Louisiana as well as a Registered Roof Consultant (RRC) and Registered Roof Observer (RRO) as certified by the International Institute of Building Enclosure Consultants (IIBEC). He has over 15 years of architectural, roofing and building enclosure design, product specification and consulting experience on various types of building projects, including commercial, K-12, federal, state and local universities/colleges, athletic facilities, healthcare, historic preservation/rehabilitation, industrial, multifamily and single-family residential. Tim is also a board member of the Gulf Coast Chapter of IIBEC and is a member of the American Institute of Architects (AIA). |
The Building and Roofing Science team offers regional expert building enclosure collaboration through design, specification, and educational support for customers of GAF and Siplast, both Standard Industries companies. GAF is North America’s largest roofing manufacturer with more homes and businesses in the U.S. protected by a GAF roof than any other product. Siplast, a leader in building enclosure systems, offers a portfolio of advanced, high-performance SBS-modified bitumen, PMMA liquid-applied, PVC KEE, lightweight insulating concrete, wall air & water barrier systems, and amenity/vegetated systems.
Originally published in Building Enclosure
Originally published in October 2026
LEARNING OBJECTIVES
- Identify design strategies for resilient and durable building enclosure systems for mission critical buildings.
- Specify resilient and robust roof system assemblies that can withstand severe weather, such as high winds and hail.
- Explain critical considerations for designing durable wall assemblies and managing the roof-to-wall transition and penetrations.
- Formulate essential questions to ask manufacturer partners to secure required sustainability information and guarantees for final solutions.
