The build check calculator is accredited by.
BFRC (British Fenestration Rating Council):
The Oracle from Buildchecker is a one stop online solution for installers, fabricators and sealed unit manufacturers. The easy to use Oracle, door and window U-value and acoustic calculators, helps with CE Marking legislation and Building Regulations compliance, with the U-value calculator being recognised by FENSA and Certass. The Oracle also contains guidance documents helping companies to comply with the regulations, including example Factory Production Control (FPC) systems.
DOORCO has their products included on the U-value calculator making it a simple, accurate and quick way to obtain U-values for doorsets utilising a Doorco leaf. These U-value calculations can then be used to create a Notified Body report for CE Marking at a competitive rate.