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May 11, 2008 – Vol.13 No.8 Cabot Aerogel and Birdair Announce First Aerogel Fabric Membrane Roof Installation. The new energy-efficient fabric tensile roofing product, Tensotherm(TM) with Nanogel(R) aerogel, developed by the companies will be installed on the Dedmon Athletic Center at Radford University in Radford, Virginia. The insulated fabric roofing system will enclose the sports arena's entire 52,000 square-feet roof area and will be fully installed by November 2008. Birdair's Tensotherm with Nanogel consists of an aerogel fabric layer sandwiched between two layers of Birdair - structural PTFE (poly(tetrafluoroethylene a.k.a. DuPont Teflon) fabric, creating an insulated composite that was not possible before the advent of the Nanogel light-transmitting fabric inner-layer. The composite fabric system is less than two inches thick, yet it has an insulation value of R-12. It also delivers 3.5 percent natural light transmission, which contributes to energy-efficiency by reducing the need for artificial lighting. The advanced system also offers moisture control and sound insulation. All of these are permanent performance features that will not change over time to match the long-term efficacy of the PTFE membrane, according to the companies.
"Over the last three decades advances in technology have greatly improved structural tensile fabrics," said Kevin Mayer, Birdair vice president for business development, marketing and sales. "Working with Cabot and Geiger Engineers, we now have an exceptionally long-wearing insulated light transmissive fabric system that meets our rigorous performance standards and can exceed mandates for higher energy-efficiency. Cabot's unique Nanogel(R) aerogel is key to creating this next generation roofing fabric." Nanogel(R) is the brand name for the nano-porous feather-light aerogel material manufactured exclusively by Cabot in Frankfurt, Germany using a process based on Cabot's patented surface modification and fine-particle manufacturing technology. Cabot, headquartered in Boston, Massachusetts, is a global specialty chemicals and materials company. Birdair is a leading specialty contractor for long-span and large custom tensile structures. (5/9/08)
Links: Cabot Corporation Birdair
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