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Aluminum Casement Windows

Wide ventilation, clean sightlines, and reliable everyday performance 

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Casement windows are a strong choice for projects that need more open airflow, a clean architectural look, and dependable operation. Hinged at the side and opening outward, they create a wider opening than many other operable window types, making them especially useful where ventilation and usability matter just as much as appearance. 

They work well in both residential and commercial settings, especially in spaces that benefit from better air circulation and a more open feel. 

Why choose casement windows

Casement windows are often specified when the goal is to bring in more air while keeping the window system refined and practical. Their side-hinged design allows for a wider opening, which makes them a smart fit for projects that want stronger ventilation without giving up a modern aluminum profile. 

Key benefits include: 

  • Wide, effective ventilation

  • Clean lines for contemporary façades

  • Easy day-to-day operation

  • A practical solution for residential and commercial spaces

  • Compatibility with larger glazed compositions

  • A consistent look across different window types

A natural fit for homes, multifamily, and commercial projects

Casement windows are commonly used in bedrooms, living areas, offices, and other spaces where airflow makes a noticeable difference in everyday comfort. They are also well suited for projects that want operable windows without making the façade feel heavy or overdesigned. 

Because they combine usability with a slimmer visual profile, they adapt well to both modern residential applications and commercial window packages. 

Pair casement windows with fixed windows

Casement windows can also be combined with fixed windows to create a more balanced and versatile glazing layout. This approach allows larger areas of glass for views and daylight, while keeping operable sections where ventilation is needed. 

It is a practical option for projects that want a cleaner façade composition without losing functionality. The fixed section helps maintain visual continuity, while the casement section provides wider airflow and everyday usability. 

System options and technical details

Beyond operability, this window system offers the flexibility needed for different construction methods, glazing requirements, and architectural preferences. 

Installation options for different project conditions 

Casement windows are available in two frame configurations to suit different construction methods and opening conditions. 

  • Block Frame:

    Best suited for masonry openings where no exterior flange is needed. This option allows direct anchorage into concrete, block, or other finished structural openings.

  • Nail Fin:

    A practical option for new construction and full-frame replacement projects, where the frame needs to attach directly to wood or metal studs.

Glazing compatibility

The system is designed to accept 1” insulating glass units and can also be configured with annealed glass or impact-resistant glazing, depending on project requirements. 

This gives architects, builders, and specifiers more flexibility when balancing energy efficiency, safety, weather exposure, and overall system performance. 

Finishes and custom options 

  • To fit a range of architectural styles, the system is available in:
  • Clear anodized
  • Bronze anodized
  • Custom painted finishes
  • Additional options include:
  • Custom grids
  • Custom screens

Tested for key performance standards

Casement windows within this system have been tested under recognized North American standards* for air leakage, water penetration, thermal performance, and structural load resistance. 

Testing standards include: 

AAMA / WDMA / CSA 101 / I.S.2 / A440

ASTM E331 / ASTM E547

AAMA 1503-09

ASTM E283-04 (2012)

ASTM E547-00 (2009)

ASTM E330-14

Representative performance values include:

*Performance values may vary depending on window type, size, and glazing configuration. 

U-Factor: 0.37 Btu/hr·ft²·°F

Air leakage resistance: ≤ 0.3 cfm/ft² @ 6.27 psf (300 Pa)

Water penetration: None @ DP15 – 360 Pa

Uniform load structural performance: ± DP15 – 2400 Pa

Explore aluminum casement windows for your project

If your project needs wider ventilation, a clean aluminum profile, and a window system that can adapt to both residential and commercial applications, casement windows are a strong option on their own and even more effective when paired with fixed windows. 

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