Hartsfield-Jackson Atlanta International Airport

At the Hartsfield-Jackson International Airport in Atlanta, Georgia, the Maynard H. Jackson Jr. International Terminal projected 13 million passengers would be passing through in 2015. Far beyond their current capacity, construction to expand the terminal was crucial.

NOW Specialties, Inc. was selected to design, fabricate and install the exterior composite wall system using Metalite® 3100, a robust 4mm Metal Composite Materials system designed to minimize buckling and oil canning. A fluid applied weather barrier was specified behind the metal panel system, but the demanding requirements of the application exceeded the capabilities of standard products available. The most stringent requirements included:

• Handling temperatures up to and in excess of 180 °F.
• Self-gasketing capability where fasteners penetrated through the membrane, eliminating the need for additional detailing.
• The ability to withstand UV exposure for up to a year without degradation.

A tested system with documented performance was essential. With the ability to withstand temperatures up to 240 °F, ExoAir 230 easily surpassed NOW’s performance requirements. The membrane, specially formulated to endure UV exposure, came with extensive documentation to meet these needs. Additionally, ExoAir 230’s nail-sealability testing made it the perfect product for NOW's specification, ensuring self-gasketing.

Other materials used during construction included ExoAir 110, ExoAir Primer, Spectrem 1 Silicone Sealant, Tremflex 834 Acrylic Sealant and Proglaze SSG Silicone Sealant, all of which were designed to withstand airport winds up to 100 mph.