Large, heavy timber windows – naturally beautiful and secure
Timber construction material and its natural beautyare now more popular than ever. The same is true of large windows. With the Roto NX |Power Hinge hinge side, Roto ensures securityand long-lasting quality for sash weights of 200 kg and more.
Large Turn-Only and Tilt&Turn windows madefrom timber and timber windows with aluminium facing formwork demand a greatdeal from hardware. A sash weighing 200 or 300 kg needs heavy-duty hardware with hinges designed to match. Depending on the location of the sash centre of mass, another challenge might present itself: Tilt&Turn windows and balcony doors may close inadvertently if their centre of mass is more than 33 mm above the sash overlap.
Anti-slam device – also for retrofitting
Windows should always be prevented from inadvertently closing, especially in public buildings like schools or nurseries, where timber windows are preferred in view of their sustainability credentials and natural look. This is why Roto offers an anti-slam device for use with the Roto NX | Power Hinge. It secures the sash in the tilt position and can also be retrofitted if required. Installation, maintenance and operation instructions illustrate what the anti-slam device looks like and how it is installed, while a special drilling jig is available for use with it. The anti-slam device is designed for Tilt&Turn sashes with an enhanced opening width of 80 mm.
Clever design – modern look
Roto NX | Power Hinge limits the tilt depth to 80 mm, as beyond this distance, it would be disproportionately difficult to close very tall or heavy windows With a sash weight of 160 kg or more, the installation of a turn restrictor is mandatory; from 200 kg, a central hinge must be fitted. P and V cams are available for producing burglar inhibiting windows and balcony doors. The design of the robust hinge side impresses with its ultra slimline and premium appearance. It is produced with a silver powdercoatedsurface as standard. However, it can also be delivered in a RAL colour of the customer’s choice.
Best quality guaranteed
The Roto NX | Power Hinge was tested with Tilt&Turn sashes up to 200 kg and Turn-Only sashes up to 300 kg in accordance with EN 13126-8:2017. The hinge side passed the durability test in accordance with class H3 with 20,000 cycles. As per its QM 328 certification, the hardware can be used for sashes with a rebate with up to max. 1600 mm and a rebate height of max. 3000 mm. Manufacturers of timber windows can also arrange for their elements with this hinge side to undergo all of the necessary tests in the International Technology Centre (ITC) in Leinfelden- Echterdingen. The Roto ITC is an accredited test centre and the certificates it issues are internationally recognised.
Tilt before turn
Roto NX | Power Hinge is also available in a TiltFirst version. This “tilt before turn” opening version has proven its worth many times over, especially in public buildings and where there are particular requirements to protect the users of the window, such as in authorities, hotels, schools, nurseries or retirement homes.
“We are expecting demand for our ‘Roto NX | Power Hinge’ hardware for large, heavy windows and balcony doors in our ‘Roto NX modular system to grow considerably,”
explains Product Manager Andreas Eilmes. “This is because the demand for very largetimber windows and balcony doors with triple glazing and, in some cases, with aluminium facing formwork requires us to rethink operating safety for these elements.”
This article was published in Roto Inside 52.