Craig has worked in construction for over 35 years with the last 20 years, providing extensive knowledge and experience in roofing and construction membranes dealing with roofspace con-densation control, airtightness, reflective thermal technology and building structure fire safety. In 2012 Craig led the design team in the specification and detailing of the first Passivhaus 56-bedroom care home in the UK. With his extensive product knowledge Craig has developed prod-ucts that are now extensively used in the construction industry.