Retractable glass roofs – Insulated - A few facts

Watertightness

Air cushions guarantee that the system offers a perfect seal, no matter what the slope of the roof. Laboratory tests have verified practical experience – that perfect watertightness is achieved even at slopes as low as 2-3 degrees. Movements that normally occur in roofs, for example due to wind and snow, are ingeniously compensated for without compromising tightness.

Insulated or un-insulated

The roof system is available insulated or un-insulated. The insulated version is based on composite profiles and double glass units. The un-insulated system uses aluminium profiles and 6 mm glass or 16 mm double wall polycarbonate panels.

Opening

The roof can be opened in two ways:

1. Upwards, from the base of the roof to the top – the motor is mounted indoors
2. Downwards, from the top of the roof to the base – the motor is mounted outdoors

Manual or motorized operation

The roof can be manoeuvred manually or by motor.

Remote control units and rain sensors are available as extras.

Self-supporting

The roof is self-supporting and the insulated version permits span widths of up to 6.7 metres. The un-insulated version can span 4.2 m without additional steel supports. The roof consists of 4 elements in each section, of which 3 are retractable.

Heat insulation

Composite profiles provide heat insulation equal to that of wood and no condensation is formed in cold weather, which is a major problem when aluminium profiles are used.

Simple installation

Both types of roof elements are simple to install. They are prefabricated in the same factory as the beams and profiles. This facilitates speedy erection at the building site and provides a much faster solution than conventional glass roofing.

Patents

The roof design is patented in a large number of countries.

Bentech sells patent licenses, semi-finished products and fully finished products.