U-value certificates validated by BRE 
Door-Stop International offers an individual U-value certificate for each and every composite door it produces, using a calculation method validated by the Building Research Establishment (BRE).
All Door-Stop doors ordered online have a U-value of 1.8 W/m2K or less (some are as low as 1 W/m2K), and so comply with the latest Building Regulations, which come into force on 1st October. The certificate is adapted for billions of door configurations, available from www.door-stop.co.uk.
“We’ve read reports that many in the industry are unprepared for the new legislation, but Door-Stop has worked closely over recent months with Chiltern Dynamics and the BRE to demonstrate compliance of our doors in good time. Every Door-Stop composite door ordered online now has a certificate with details of its individual U-value, using a calculation method validated by the BRE."” said Nick Dutton, managing director for Door-Stop. “Door-Stop is the safe option.”
