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ST80 Window

Our ST80 is a thermally efficient window system designed using the most up to date thermal evaluation software. Available with multiple opening possibilities (tilt & turn, push-out/in-swing casement, hopper or awning) and the ability to install units up to 2 1/16″. It is fabricated with using thermally efficient cores, gaskets and infills, making the ST80 an excellent solution for the most demanding projects.

ST80 Window - thermally efficient window -APA Facade Systems

Thermally Efficient Window System

3 1/8″ Window System 
  • Includes multi-point locking for added security.
  • Thermally Efficient Window System.
  • Eco-friendly polyamide core.
  • 3 1/8 ” Window
  • Glazing range from 1 1/8” – 2 1/16“.
  • Identical sightlines throughout.
  • Can be pre-assembled in-house saving installation time/cost.
  • Available in single, dual-color or anodized finish
  • Matching rebate doors available
  • Evaluated and tested to the AAMA 101 standard for windows and doors, meeting the CW PG50 grade. 


Opening Possibilities
1. Casement Window
Our casement windows are available as a fixed/picture window or push-out / in-swinging window. They can be designed with single or double sashes.
The main benefit of installing casement windows is their flexibility. They can open up to 90° internally or externally offering unlimited ventilation.
Opening Possibilities
2. Hopper
Hopper windows are an excellent solution for efficient ventilation. Hinged at the bottom of the frame, tilting inwards, they leave a small opening at the top of the frame. Hopper windows are often found on multi-level or high-rise buildings
as they provide both ventilation, and high fall protection. Easily integrated with our casement window systems, hopper windows can also be installed over doors for added ventilation and to increase natural light.
Opening Possibilities
3. Tilt & Turn Window
The tilt and turn mechanism allows the user to open the window in two ways. Turning the handle 90°, the window will tilt inwards at the top like a hopper.
At 180°, the window will swing inwards, opening fully like a casement window.
Tilt and Turn windows are the perfect solution for trickle or purge ventilation and for hard-to-reach areas that require ease of access for cleaning or maintenance.
Opening Possibilities
4. Awning
Awning windows are hinged at the top of the frame and swing outward from the bottom. They are the perfect solution to ventilate the room, even in rainy weather.
Like our hopper windows, awning windows can be easily integrated with our casement windows or door systems to improve ventilation and increase natural light.

Check out our other products

Find inspiration for your next project

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Hotel La Tour

Hotel La Tour

Hotel La Tour Milton Keynes The Brief   System Used:  TB50 Curtain Wall, ST70 Hi Windows & Doors Location: Milton Keynes Client: 

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The Samuel Hotel Dublin

The Samuel Hotel

The Samuel Hotel Dublin The Brief   System Used:  TB50 Curtain Wall, ST70 Concealed Sash Windows & ST70 Hi Doors Location: Dublin

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Charlemont Exchange - LEED Gold

Charlemont Exchange

Charlemont Exchange Dublin The Brief System Used:  TB50 SG Curtain Wall, TB50 SG CFA, Glass Fins Location: Dublin City  Client:  Walls Construction Architect: 

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If you have any further questions regarding our window, door, facade, brise soleil or louver systems, please get in touch with a member of our team below. 

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