»»‘ ALUMINA BY LINIAR’ HAS been designed and developed by the same team of experts as the Liniar window system, also the first to launch a bespoke PVCu bi-folding door system to the market in 2011.

The brand new bi-fold door was created in response to customer feedback, as a number of Liniar PVCu fabricators also wished to offer customers an aluminium alternative for larger apertures and commercial projects.

Having built a well-earned reputation in the PVCu fenestration sector, this is Liniar’ s first departure into aluminium and the Alumina doors include some clever enhancements to set them apart from rival systems.

Made with standard machinery- Able to span 1.2 metres wide per sash and 2.5 metres high. Manufactured using standard aluminium machinery but includes added extra features for heavy duty use.

Warm touch exterior- Optional‘ warm touch’ foiled exterior.

Aluminium doors are considered sleek, strong, smooth and beautiful, yet can often feel

cold. Alumina can be offered in just about any powder-coated colour you can imagine but you can also choose a beautiful wood grain or flat foiled finish for your doors. This means if you have Liniar PVCu windows in your property, you can choose a perfectly matching aluminium bi-fold.

Fully sculptured to match- The only fully sculptured( curved) aluminium bi-fold door on the market – so not only will consumers be able to choose Alumina doors that match the exact colour of Liniar sculptured PVCu windows, they will also be the same shape.

Thermally efficient aluminium- The Liniar PVCu range is renowned for its energy efficiency and Alumina is no different. Pushing the boundaries of thermal performance, the team has created a system designed with tomorrow’ s thermal performance requirements in mind.

Innovative thermal lock- Designed from scratch with a combined lock and thermal insert.

An area where heat can be lost from the home is through the

lock, as it’ s difficult to maintain a thermal break in this area. This innovative lock unites the ultimate specification of security with a high strength engineering polymer lock body so the lock itself acts as a thermal break, boosting the door’ s thermal performance.

Low U-values- With 28mm double glazed and 36mm or 40mm triple glazed options available, offering‘ true’ U-values as low as 1.0W / m ² k, thanks to the innovative thermal lock and 40mm triple glazed unit.

High security- With a suite of hardware following the same principles as the Liniar ModLok™ bi-fold system, including multiple bi-directional locking points, shootbolts that secure firmly into the track, built-in anti-lift features and anti-bump cylinders.

Threshold options- Available with three threshold options. The rebated aluminium frame runs seamlessly around to form a weathertight threshold, supplied as standard. Liniar’ s optional aluminium low threshold requires no trench excavation to install, and is just 23.5mm at its highest point.

Bottom rolling- Alumina bi-folds move smoothly and effortlessly along a sleek stainless steel track and are‘ bottom rolling’, not top-hung – meaning no extra stresses are placed on the building’ s lintel.

Attention to detail- With innovative features including folding keys, ergonomic handles, hidden fixings for hinges and discreet magnets, the attention to detail is what makes an Alumina bi-folding door‘ best in class’.

www. alumina. liniar. co. uk