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Seamless transitions

How much wall do you need in your life? For one family of clients designing their new home in Leipzig, the answer to this question was, “As little as possible!” The family commissioned a modern extension to a listed villa dating back to when the city was first founded, with a facade made almost entirely of glass. Large sliding windows up to six metres tall make the living area larger, making the boundary between the inside and the great outdoors almost seamless, whatever the season. The largest and most important window front is in the dining area. The glass elements, which are six metres tall and over two metres wide, open up the living space and gallery out onto the garden. The cero sliding window connects two floors.

Video: The detached house in Leipzig

It looks impossible, but the cero sliding windows can be moved to the side effortlessly, and offer an unobstructed view of the outdoors.

15 square metres of glass per window

With a profile sight line of just 34 mm and a glass composition of 98 percent, the cero sliding window looks almost completely frameless. The sliding windows offer excellent thermal insulation, and can have up to 15 square metres of glass per window. In the bedroom, this allows for extra-wide windows, giving the owner an unobstructed view of their natural surroundings the minute they wake up. 

Schiebefenster-cero-EFH-Leipzig

The bedroom on the top floor also has cero sliding windows, offering an unobstructed view of the garden. 

Dissolving the edges of rooms

Another of the house’s highlights – apart from the glass elements up to six metres tall and over two metres wide in the dining area – are zero-threshold sliding windows in the spa area, which open around a corner. This allows the room to be opened up along its entire perimeter, making the top floor seem as if it is floating in thin air.

Schiebefenster-cero-EFH-Leipzig

The spa area can be opened around a corner. Thanks to the cero sliding window, this creates a seamless, zero-threshold transition to the patio.

cero III
cero III

cero sliding windows

cero opens rooms with extensive glass panels – impressive transparency dissolves the boundary between inside and outside. cero offers every possibility required for architecturally demanding buildings from a constructive and creative point of view. The slender frames and profiles help to make the elements as transparent as possible. 

To the product: cero - Sliding window
Engineering at a glance
hoher Glasanteil
hoher Glasanteil
Maximum transparency
hoher Glasanteil
Maximum transparency

The slender frames and profiles help to make the elements as transparent as possible. The sight lines are kept to just 34 mm, resulting in a symmetrical and minimalist design that is underlined by the 98% glass composition. Depending on which variant you choose, your cero will come with either triple or double-toughened single-pane safety glass (TSG). 
 

Einbruchhemmung
Einbruchhemmung
Security
Einbruchhemmung
Security

cero has been tested and certified in line with the highest security standards, and equipment that meets anti-burglary protection classes RC2 and RC3 is available as an option. A two-point latch bolt with adjustable locking points and a stroke of 24 mm is fitted as standard in the top running track and guide rail. Connections to alarm systems, a closing monitor, and notification systems such as broken glass sensors and position monitoring systems are all available as options.

15qm
15qm
Large element sizes
15qm
Large element sizes

Even with a glass area of 15 m² and a weight of up to 1000 kg per element, the extra-large cero sliding window can still be opened and closed with no problem at all. Stainless steel carriages and rails guarantee a light, low-wear sliding motion, while the integrated stainless steel track rollers ensure even load distribution. Electric panel drives are also available if required. cero has successfully passed a durability test in which it was opened and closed 100,000 times.

Vielfältige Grundrisse
Vielfältige Grundrisse
Versatile ground plans
Vielfältige Grundrisse
Versatile ground plans

The range of combination options for cero system components as sliding, fixed and corner elements is almost limitless. They offer an astounding degree of creative freedom in terms of design, and are suitable for any ground plan. 

Motorisierung
Motorisierung
Motorisation
Motorisierung
Motorisation

The sliding elements can be fitted with a fully automated operating system including electro-mechanical locking and unlocking, which offers the user interdependent control of several panels via a control unit.

Order a brochure
Order now: The cero brochure
Would you like even more in-depth information on our individual systems and the technical details of our cero sliding window? Then order our comprehensive product brochure today – available in digital format via email or as a hard-copy book.