Leverkusen, Germany - Two polyurethane systems from BaySystems have "played a major role" in developing Bayer MaterialScience's new Top Therm 90, a concept for slimline windows and facades with "excellent insulating properties," BMS said 29 Sept. BaySystems is the global umbrella brand for BMS's polyurethane business.
According to BMS, Top Therm 90 cuts heat losses by around half compared with the solutions currently on offer, and is also suitable for "passive houses," ie low-energy buildings.
The profiles, which measure 90 mm in thickness, are insulated by the combination of Baytherm polyurethane insulating foam and a "dimensionally stable outer shell made using the Baydur casting system," BMS said.
In the design of Top Therm 90, BMS said, a layer of polyurethane insulating foam ensures there is no contact between the warm and cold sides of the frame profiles, whilst the material also "adapts perfectly" to the water-resistant polyurethane surrounding shell.
Top Therm 90 was developed by six industrial partners and two scientific institutes as part of the Highly Insulating Window and Facade Systems (HWFF) project, BMS added, also noting that under new German energy saving regulations, energy requirements for buildings are to be cut by 30 percent from 1 Oct 2009. (RD)