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 Adshead Ratcliffe's range of durable sealants makes the process of repairing flat roofs quick and simple. The Arbo Flat Roof Seal and Repair Fluid is a silicone coating that is cold-applied and has a lifespan of more than 20 years, taking away the health and safety issues associated with bitumen.