- Uf up to 1.1 W / m2K
- French doors with large glazing
- Easy to use, composite threshold
Lift and Slide HST door with a sash profile thickness of 85mm combine natural and modern style. The heat transfer coefficient is lowered due to the possibility of wider glazing (50 mm). HST is perfectly suited to the spacious building and allows the construction of very large door glazing.Special fittings and steel reinforcements ensure easy and light operation.