York, Pennsylvania -- Glass-reinforced polyurethane (G2RP) technology, including a PU resin from Bayer MaterialScience, is being used to make a range of highly insulating window frames. The products, tradenamed GThurm, are used in an architectural-grade line of windows made by Graham ArchitecturalProducts (GAP), a 27 May GAP statement said.
According to GAP, 80 percent continuous stranded glass content is combined with 20 percent PU resin to produce window lineals using a pultrusion process. "The unique process allows for lightweight framing with superior structural performance and a thermal performance nearly triple that of ordinary AW-rated products," the statement claimed. The PU resin from BMS used in the pultrusion process contains no VOCs (volatile organic compounds), the statement added.
"Our new GThurm windows represent the latest technology, combining environmentally friendly components in a low embodied energy package," GAP president, Brian Hurley said in the statement. "Most importantly, the GThurm windows can achieve thermal transmission measures as low as U 0.18 for an AW-rated window. This will save customers a substantial amount of energy compared to most other AW windows available today," he added.
GAP said its GThurm lineals also use 57 percent less energy per pound of raw materials to produce than comparable aluminium designs, making it a more sustainable product. (RD)