The thermal regulations for façade products will change from June 15th 2022, with U-value requirements and Window Energy Ratings being upgraded as part of the new Approved Document L. The changes are detailed on the Government website, and everyone within the UK construction industry needs to familiarise themselves with the changes. Maria Morgan, Kawneer’s Product Manager (UK), explains how Document L will affect the industry and how Kawneer is providing assistance to customers, as the regulations are implemented.