Our new lift & slide door system that exhibits the best thermal insulation in all the sliding range with transmissions as low as 0.9 Wm2/K.
This maximum energy efficiency is possible thanks to the perfect combination of polyamide thermal breaks and cross-linked polyethylene foam combined with the use of high-performance triple glazed units (possible thickness up to 55 mm) and large size sliders. Acoustically this combination of framing and high-performance acoustic glass will deliver a noticeable noise reduction with exceptional thermal insulation.
The possibility of large sash dimensions makes the ST4-600 system the ideal choice for enclosing large spaces while maintaining a high level of luminosity. The system offers a modern style with straight style both in sashes and fixed panels.
For more information on this excellent lift & slide door, get in touch with a member of our team here.
|Uw Whole door value*||EN ISO 1077-1||as low as 0.9 W/m2K|
|Air permeability||EN 12207:2000||Class 4|
|Water tightness||EN 12208:2000||Class 9A|
|Wind resistance||EN 12210:2000||Class C5|
*Whole door U values are a combination of the frame and glazing thermal performance and as such will vary with the specification of glass utilised. Please consult with the APA technical team for more specific performance information.