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What Are PRISM Windows?

The PRISM window line by Ostaco is at the leading edge of window technology and design. In this blog, we are going to go over the benefits of PRISM windows and why you’ll want to consider using them for your next project.


Our engineering team had one objective — less frame and more glass than any other vinyl window.  PRISM is progress.  Some of the structural upgrades to the PRISM window include:

  1. Fusion-welded vinyl chambers.
  2. Internal steel reinforcement channel.
  3. Mullion pocket to facilitate structural reinforcements when combining large units.
  4. Santoprene bulb seals improve the sash/bulb contact area for a consistent season and improved performance.
  5. Commercially rated structural performance designation (Results available upon request).

Energy efficiency

PRISM windows are rated most efficient by ENERGY STAR®.

Available in either ⅞” dual-glazed or 1-⅜” true triple-pane glazed. Our customers get industry-leading energy performance and sound reduction, especially with true triple-glazed.

The PRISM window also has self-adjusting weatherstripping that provides the highest possible resistance to air and water infiltration (Results available upon request).

Finishing touches

All PRISM hardware is supplied by the industry-leading manufacturer, TRUTH HARDWARE. With the new TRUTH Contemporary Handle and Lock, you can choose from white, black, and satin nickel — it is the ideal option to complement the low-profile window design. PRISM windows also come with a heavy-duty, multi-point locking system that will provide your home with the safety and security that you want.

And lastly, colour options. You will be able to choose from Ostaco’s standard colours or you can supply a colour swatch for matching. Whatever theme or character you want your home to have, colour makes all the difference.

If you’d like to know more about the benefits of PRISM windows or if you’d like to get a quote, please don’t hesitate to contact our expertly-trained staff.

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