Aluk 77 system now Part L compliant

Aluk has updated its 77 window and door system to ensure it not only complies with the 2022 updates to Part L of the Building Regs but is also ready for the 2025 Future Homes standard.

With a modern, minimal aesthetic, the 77 system is said to be ideally suited to new build settings, particularly multi-storey apartments where developers can achieve a uniform look. Aluk adds that the floating mullion open-in French casement option is also especially useful for ensuring that Juliet balconies tie in with the rest of the building.

The 77 has a flat, square profile design and fully rebated flush door which can be paired with open-in and open-out window profiles.

The 77 system meets the 1.2 W/m²K U-Value limit set for Part L compliance in new builds using standard, 1.0 centre pane double glazing. If even lower U-Values are required, then it can also accommodate triple glazing to achieve as little as 0.8 Wm²K, which is the expected target in the 2025 Future Homes standard.

The system has has now been given new glazing foams and centre seals to enhance the wind and water resistance and has passed the PAS24: 2016 security test.

Also part of the update are the new Aluk Novae handle designs available in black, white and silver to suit any interior finish and décor, and additional hinge options including face fixed, slimline barrel or fully concealed. A new mid rail means doors can even now be fabricated with solid panels at the bottom if required in either single or double configurations.

According to Aluk, windows and doors in the 77 system are now easier than ever to manufacture and fit, with simplified gasket and bead combinations which reduce stock holding and ordering, and clip-in membrane details for all the outer frame profiles which reduce fabrication time and provide more robust weathering details.

The handle and hinge choices have also been deliberately designed to give plenty of freedom and flexibility to buyers while still being cost effective and easy to fit.