The HST 85 terrace door system allows a panoramic view thanks to its large glazed surface. Thanks to two independent tracks and a special lift and slide technology of the leaf, it is possible to keep the leaf motion easy and smooth. It is a convenient solution of the highest quality.
At the same time, wide HST 85 profiles and optional wider glazing units ensure high thermal insulation parameters. This ensures that even large structures are stable and energy-efficient.