Rationel products are becoming VELFAC
One VELFAC brand. An expanded range of windows and doors.
Over the next few months, we will be merging our 2 existing brands, VELFAC and Rationel, so that by the end of 2026 all Rationel products will be re-branded as VELFAC. The Rationel brand will then be wound down in the UK (not affecting other European markets).