Respond to these showcases www. ajplus. co. uk/ajdirect Readers may obtain information about these products by filling in the enquiry numbers on an AJ enquiry card. Advertisers wishing to promote their products on these pages should contact Chris Bond on 020 75056816 Hunter Douglas has designed software to make life easy for architects negotiating Part L regulations. The company behind Luxalon has developed LuxaTherm, a Windows-based programme which allows architects to design virtual buildings in minutes and get onthe-spot U-value calculations.