ST70 HI+ Tilt & Turn Window
The ST70 HI inward opening tilt and turn window system has recently been updated with stronger thermal performance. Our design team improved the system by adding new eco-friendly polyamides and foam cores. As a result, it now achieves whole-window Uw values as low as 0.98 W/m²K.
This tilt and turn design offers an ideal solution for areas of a façade that need easy access for cleaning or maintenance. It also provides strong acoustic performance and reliable weather tightness. In addition, the system meets the highest BS/EN standards, and a UKAS-approved facility independently tests all performance results.
The ST70 HI range supports glazing from 28–42 mm, giving you flexibility across many project types. It is an eco-friendly and cost-efficient option for both commercial and residential construction. Because of its practicality and durability, it also works particularly well for student accommodation and similar high-use developments
You can view the new ST70 HI brochure below:
For more information regarding our ST70 HI tilt & turn window system, get in touch with a member of our team here.
- Whole window Uw value as low as 0.97W/m2K (Triple Glazed)
- Tested to Pas 24 standards
- Fabricated using recycled aluminium and plastic materials
- Tested to EN12101 smoke ventilation
- Single or dual colour available
- Double or triple glazing up to 42mm in thickness
- New polyamides used in the window assembly
- Can be pre-assembled in-house saving installation time/cost
- Matching rebate doors available
- Identical sight lines throughout
- New foam cores to increase thermal performance
| Frame Depth | 70mm | |
| EN ISO 1077-1 | Uw Whole window value: * | As low as 0.97 W/m²K |
| BS 6375-1:2009 | Air: | Class 4 |
| BS 6375-1:2009 | Water: | Class E1050 |
| BS 6375-1:2009 | Wind: | Class A5 |
| BS EN ISO 717-1:2013 | Acoustic: | 60 dwb |
| BS 6375-2:2009 | Operating forces: | Class 1 |
| BS 6375-2:2009 | Mechanical strength: | Class 3 |
| BS 6375-2:2009 | Repeated opening & closing (30,000): | Class3 (Heavy Duty) |
| PAS 24:2012 | Security classification: | Certisecure |
*Whole window 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.
