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ST70 HI Window

Our thermally enhanced, ST70 Hi window produces the ultimate thermal performance with values as low as 0.170 Btu/ft ² hr °F.

It has been designed with a 2 ¾” profile, eco-friendly polyamide, new insulating foams, and an insulated centre seal.

This increases the effectiveness of the barrier to low temperature, reducing or eliminating condensation.
ST70 HI - Ultimate Thermal Performance - Eco Friendly 2 3/4" Window

Ultimate Thermal Performance

Thermal transmission as low as 0.170 Btu/ft ² hr °F
  • Thermal transmission as low as 0.170 Btu/ft ² hr °F
  • Eco-friendly polyamide core
  • 2 3/4″ Window 
  • Glazing thickness of 1 1/8” – 1 5/8
  • Extra-large sash sizes available
  • Identical sightlines throughout
  • Includes multi-point locking for added security
  • Can be pre-assembled in-house saving installation time/cost
  • Available with single, dual color or anodized finish.
  • Polyester powder coating to ASTM 2604.
  • Matching rebate doors available
  • Evaluated and tested to AAMA 101 for windows and doors meeting the CW50 grade. 

Ultimate Performance

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.
Opening Possibilities
5. Parallel Sash
The Parallel Sash consists of an operable sash with scissor hinges, that moves outward in a horizontal direction, perpendicular to the frame. It provides efficient natural ventilation to the building, achieving approximately twice the natural ventilation of equivalent sized awning windows.
Offering a streamlined aesthetically pleasing finish, the parallel sash does not take up any room on the inside of the building and finishes flush to the external wall or facade. The parallel sash is usually integrated with our curtain wall system offering a modern ventilation solution. .

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Find inspiration for your next project

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Olympic Way - London - APA Facade Systems

Olympic Way

Olympic Way London The Brief System Used:  TB50 Curtain Wall  ST80 & ST70 Windows  Location:  London Client:  Donban Construction Architect:   HTA Design The

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Four Ferns Care Centre

Four Ferns Care Centre

Four Ferns Care Centre Dublin The Brief System Used: TB50 Curtain Wall System, ST70 HI Windows & Doors  Location:  Dublin  Client: Purcell

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The Roy - 1650 Granville Street - Halifax
Brown Stone

The Roy

The Roy Halifax, Nova Scotia, Canada The Brief System Used: TB50 Curtain Wall, ST80 Windows, ST80 Door Systems, Sliding Doors

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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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