ST70 HI+ Tilt & Turn Window
Premium performance, effortless versatility.
The ST70 HI Tilt & Turn window brings precision engineering from APA’s commercial façades into luxury residential design. Every detail of this inward-opening system is crafted to deliver comfort, style and superior energy efficiency.
Featuring advanced thermal insulation with eco-friendly polyamides and integrated foam cores, the ST70 HI achieves exceptional performance — with whole-window U-values as low as 0.98 W/m²K.
This versatile system offers two modes of operation: a convenient tilt function for secure ventilation and an inward turn position for easy cleaning and maintenance — ideal for modern homes and apartments.
Combining sleek profiles, acoustic comfort and tested weather protection, the ST70 HI Tilt & Turn window provides homeowners with the perfect balance of design elegance and robust performance.
[Download the ST70 HI Brochure]
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.
