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 British Gypsum has published a new 24-page technical guide, designed to help housebuilders and developers facing stringent Part E acoustic standards for communal areas. The guide is downloadable on the internet at www. british-gypsum. com/ residential or can be ordered by telephone on 08705 456123.