Certifications
C.E.R.F.F. (A certificate issued by the C.E.B.T.P, which is official organisation of the National Federation of Construction)
Association for the Certification of Windows, Façades, walls and Door and Window FramesClestra is C.E.R.F.F. certified
This certification attests to a minimum level of performance of a wall model using the French reference standard of DTU 35.1 (NF P 24-802-1). This characterises a wall model's solidity, movability and acoustic dampening.


CER.F.F. Certification [70 Kb]