Solidor’s lower ‘U’ values

solidorComposite door company, Solidor, has re-engineered its door slabs in a move to further lower their ‘U’ values, thanks to a new specially selected, fully sustainable species of low density wood. This includes the newly launched 0.9 W/m2K 62mm door blank for its 88mm KBE and dedicated Residence 9 door frames.

,The standard 48mm door slabs now achieve a ‘U’ value of 1.35 W/m2K, well below the current Building Regulations and without the need for any foam infill.

,The new 62mm slab achieves a ‘highly impressive’ ‘U’ value of 0.9 W/m2K and has been designed to work with a KBE System 88 and Residence 9 door frame, with the option of specifying a Passivhaus compliant option with a few further enhancements. These include 44mm triple glazing and inserts to the door frames and according to Solidor, these test figures have been verified independently by ift Rosenheim in Germany and by Build Check in the UK.

,These latest door slabs were on show at the FIT Show in various guises and colours including Rich Aubergine, along with Winkhaus’s new patented blueMatic AV2-B battery operated automatic multipoint locking system, which is perceived by many as the next generation of keyless locking solutions for composite doors.

,Pierre Mifsud, operations director at Solidor, commented: “These are important developments for our customers and the new 62mm slab helps to further set us part and cement our reputation as the innovators in the sector. We’ve got a thirst for innovation which shows now sign of abating.”

,To find out more, log on to, call 01782 847300, e-mail or follow @solidorltd on Twitter.

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