On October 8, 2024, the 2024 FTI World Congress of the US Curtain Wall Technology Committee (USCWTC) officially opened at the College of Architecture and Planning, University of Utah, Salt Lake City. The event offered attendees a comprehensive range of insights—from energy requirements to emerging trends and technologies—bringing together professionals from around the globe eager to explore the latest developments in the curtain wall industry.
After a two-year hiatus, the FTI Innovation and Collaboration Conference returned in full force, providing a high-level platform for knowledge sharing and industry networking. This marked Warmframe Technology’s first in-person industry gathering since the 2022 FTI World Congress in Los Angeles. Nearly 500 representatives from around the world attended, creating an atmosphere of enthusiasm and excitement.
The conference featured presentations on curtain wall systems, energy efficiency and sustainability, data updates, thermal performance, shadow box design, and green, low-carbon building technologies. Emerging technologies such as 3D thermal modeling and laser thermal breaks were highlighted. With stricter green and energy-saving standards being implemented worldwide, engineers, architects, and contractors face increasing challenges. Regardless of project scale, they must adopt more effective methods to reduce heat transfer, and the new U-value requirements are driving innovation in low-carbon design.
Warmframe Technologies’ global leader in innovative insulation technologies, Mr. Steve Chou—also a member of the USCWTC Technical Review Committee and the first NFRC-certified modeler in China—was interviewed by multiple U.S. media outlets. At the conference, he led discussions on the application, testing, and compliance of high-performance curtain wall insulation blankets. He highlighted a common industry challenge: U-values for doors and curtain walls are often considered only in later design stages, which complicates the process. “Engineers first address structural challenges and architects’ aesthetic requirements, then water and air tightness, and seismic performance. Thermal performance is always considered last,” Chou explained. “By the time the curtain wall’s thermal performance is reviewed, it is often too late to make improvements.”
Chou elaborated on the root cause: the way heat transfers through exterior walls. “Thermal breaks are similar in concept to low-E coatings. Insulation strips reduce heat conduction, and the air gaps between them mitigate convection,” he said. “Heat transfer in the exterior wall frame behaves much like electricity—it travels through the weakest points. Warmframe’s high-performance inorganic composite curtain wall insulation blankets greatly reduce thermal conductivity compared to traditional insulation strips, lowering both the frame’s U-value and the overall curtain wall U-value.”
Using Warmframe’s latest thermal analysis of curtain wall shadow boxes as an example, Chou noted: “In complex facade shadow boxes, traditional insulation or insulated glass layers can produce discontinuous temperature gradients, causing glass thermal breakage, summer solar overheating, condensation, icing, and other thermal failures. Warmframe, together with thermal engineering teams from Morrison Hershfield, Permasteelisa, and Schueco, conducted quantitative analysis with 2D and 3D thermal modeling to address these challenges.” He emphasized that resolving thermal performance issues early in the design stage can reduce material use and provide greater design flexibility.
Chou also introduced Warmframe’s Cloud-U-value platform, a PC- and cloud-based thermal calculation tool. Already implemented in North America, the platform has more than 7,000 registered designers worldwide, providing efficient and precise thermal analysis support for curtain wall design.