Thresholds for lift-and-slide elements
The threshold is a crucial component of your lift-and-slide element. Thanks to the thermal break, the heat flow from the interior to the exterior is interrupted, allowing you to achieve significant energy savings. All thresholds from Gretsch-Unitas impress with their high stability and have been optimally adapted to market requirements and your needs. With continuous CE and RC2 certification, our GU threshold solutions offer maximum comfort and walking safety – naturally also available in barrier-free versions.
Thresholds for elements made of timber, timber-aluminium and PVC
The thresholds for lift-and-slide elements can be used universally in timber, timber-aluminium and leading PVC systems.
- Thermal break in the thresholds reduces heat flow and saves energy
- Can be used with all timber and leading PVC systems in various schemes
- Same base body for lift-and-slide elements made of timber or PVC
- Entire exterior (weather side) protected by aluminium profile
- Flexible modular system: step threshold, add-on rail, various weather profiles and clip-in running rails
- All running rails can be replaced retrospectively
- Sealing membrane connection directly at the weather profile
- Barrier-free solution for all GU-thermostep 164 and GU-thermostep 204 thresholds
- Optional: thresholds pre-assembled to the highest degree of prefabrication
GU-thermostep, GU-threshold 47, GU-flatstep, GU-timberstep
The specifications for sash clearance and sash thickness refer to timber systems, while profile-specific versions are available for PVC systems.
Thresholds for elements made of timber and timber-aluminium
Special versions made of glass fibre reinforced plastic are available specifically for timber and timber-aluminium elements, ensuring particularly high stability and durability.
- Maximum stability with a very low profile of only 30 mm
- Excellent thermal properties at high and low temperatures
- Minimal material expansion: the coefficient of expansion corresponds to that of timber
- Rot-proof
- Available in two versions: with and without construction connection leg
- The construction connection leg features a 50 mm wide adhesive surface and can be removed later if required thanks to a continuous predetermined breaking point
- High-quality painted surface in RAL 7035
- The GFRP thresholds are only available as pre-assembled articles for various profile systems
GFRP thresholds
Barrier-free thresholds
The demand for barrier-free building equipment is increasing, especially in private homes and public buildings. With our barrier-free thresholds, we offer you the ideal solution. Accessibility is achieved with only a few additional components, without the need to modify existing threshold constructions, the threshold itself, or the building connection. For you as a fabricator, production and installation on site remain unchanged, ensuring quick and easy assembly. The barrier-free solution is available for all GU-thermostep thresholds.
Pre-assembled thresholds
Take advantage of our pre-assembly service for lift-and-slide systems and order thresholds that are fully cut to size, pre-drilled and pre-assembled. Optionally, you can also receive the matching hardware and accessory items directly. This shortens your production time, reduces effort and lowers your costs – for efficient and smooth processing.
