Door Designer Door Designer Request a Brochure Find a Showroom Trade Customers Our Products Why Distinction? Our History Contact Us CE Marking We are proud that our GRP composite doors meet or exceed regulatory requirements. Weather performance proven to BS 6375-1 for weather tightness, air, wind and water Meets Outdoor-Indoor Transmission Class (OITC): 26db Meets Sound Transmission Class (STC) 29db Achieves Global Warming Potential (GWP) score of less than 5 Achieves Ozone Depletion Potential (ODP) score of zero Meets UK Building Regulations minimum U value requirements of 1.6 W/Mtr2/K You can also download our certificates of declarations of performance. EN 12150-2 Annex ZA Glass in Buildings 4mm Thermally toughened soda lime silicate safety glass EN 1279-2: 2002 IG Units Intended to be used in buildings and construction works DDS4 IG Units, intended to be used in buildings and construction works Please click here to access the Buildcheck U-Value Calculation tool. About Distinction Doors Distinction Doors is a market leading composite door manufacturer based in South Yorkshire across two sites: Tankersley manufacturing site (Jct 36) and Sheffield warehouse (Jct 34). As the UK’s leading GRP composite door supplier to the UK Door Fabrication industry, we pride ourselves on the excellence of our product and service. Every member of the Distinction Doors team is passionate about our composite doors. From customer service experts to technical specialists, every member of the team is dedicated to making sure that every customer benefit from the Distinction difference. The UK’s No.1 Selling Entrance Door Our Products Contact Us Homeowners Trade Customers Careers FAQs Covid-19 Risk Assessment Door Designer Warranties CE Marking Modern Slavery and Human Trafficking Statement Privacy Policy Cookies Policy Terms & Conditions © Distinction Doors 2021 Website by Rave Cookie Policy We use cookies on this site to enhance your experience. By browsing this page you are giving your consent for us to set cookies Read More Got it