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 Increasingly, highly insulating Kalwall, so well known for diffusing daylight in cladding projects, is being specified for roofs - ranging from external canopies (like this hospital), through self-supporting barrel, low-profile and pitched to very large spans. Visit www. stoakes.co. uk or phone 0208 660 7667.