Supporting Products We are a single source supplier for your roof and accessories, with one guarantee covering it all. Rooflights & Structural Glazing Our solutions bringing natural light and ventilation to your building. Discover More Insulation Parafoam range of high performance rigid-foam insulation boards is available with cut-to-fall options. Discover more Metal Faced Membranes Langley’s metal faced membrane range of products are capsheets, predominantly used for the waterproofing of sloping roofs. Discover more Case studies Alderbrook School Teamwork at all levels has proved critical in overcoming unforeseen obstacles in the execution of a school roof upgrade. Discover More Christ’s Hospital School When water began leaking through a flat roof into one of the classrooms, the school contacted Thameside Roofing Ltd, a Langley Approved Contractor who then commissioned Langley. Discover More