Featuring an innovative ‘ link ’ suitable for REHAU profiles that allows the closure plate to be positioned to reduce draughts while directing air away from occupants , the new trickle vent was developed to future-proof new frames . Specifically , trickle vents will need to be installed on all new and replacement windows from 15th June 2022 in accordance with ventilation requirements laid out in Approved Document F ( ADF ).

These regulatory changes have been adopted in order to improve occupant health and ensure good air quality by providing adequate means of ventilation . As Malcolm Taylor , Commercial Product Manager at REHAU Windows ,

explains , these updates have been made to address a longstanding concern in the fenestration sector .

“ Ventilation was previously addressed in earlier guidance documents , but both naturally ventilated homes and those with continuous mechanical extracts fell short of provisions laid out in ADF . Yet with COVID highlighting and exacerbating the need for good air quality , the spotlight has fallen on the aerodynamic performance of windows .

“ These new regulations have therefore greatly increased equivalent area requirements , which in turn has grown demand for both Link Vent 5000 , and 2500 equivalent air area ( EQA ) trickle vents . As such , in collaboration

once the updates to Approved Document F come into force , fabricator usage of vents in the replacement and trade markets alone will increase from an average of 30 % to over 95 _%

with the experts at Glazpart , we wanted to develop solutions in both sizes that would help futureproof frames against changing regulations .”

REHAU and Glazpart ’ s new trickle vent is available as a fit-and-forget zero maintenance solution with a combined screw or clip-in fixing , and enjoys excellent UV colour stability . It is available in a wide range of colours to match REHAU profiles , and

the Link-vent 5000 closure plate is split to allow for 50 % opening and further ease the operation of the ventilator .

“ The transformational impact of these new regulations cannot be understated , and this can be seen with fabricators . By selecting the 5000 EQA vent , this allows standardisation to meet requirements for dwellings and single-storey dwellings , including but not limited to bungalows ,” says Dean

Bradley , Sales and Marketing Manager at Glazpart Ltd . “ For example , once the updates to Approved Document F come into force , fabricator usage of vents in the replacement and trade markets alone will increase from an average of 30 % to over 95 %.

“ Consequently , it is vital that organisations such as Glazpart and REHAU come together to help fenestration professionals better navigate this new regulatory landscape . This new trickle vent is a great example of this approach in action , allowing fabricators and installers to pass on the energy efficiency benefits of polymer frames while protecting the health of building occupants .”

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