The new HST 3,3″ door system is on the one hand a response to expectations of creating ever larger window constructions, and on the other, due to structural changes and, above all, the possibility of using larger glass packages up to 2″ wide, allows achieving above-average properties in the field of thermal insulation . A novelty in this segment is the modular nature of the structure, which allows three optional configurations of the product, depending on the expected thermal parameters.
The 3,3″ lift-and-slide door is available in three different designs: from the basic version that meets all the requirements of the latest German Energy Savings Regulation to the standard version with extra thermal insulation all the way to the premium version with excellent, passive-house-level thermal insulation values.
