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Sashless Windows

Sashless windows use counterbalanced glass panes that slide vertically, allowing ventilation without the bulk of conventional sashes.

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Sashless Windows


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About Sashless Windows products

Sashless windows suit openings where vertical ventilation and clear sightlines are priorities. For a new build or renovation in the United States, set the opening dimensions early and coordinate the unit with the wall section, finish, and water-management layers. Compare CiiLOCK Sashless Window Systems by CiiLOCK Engineering with those drawings, and review its installation requirements before framing begins.

Sashless Windows

A sashless window also needs a clear junction between its frame, interior trim, and exterior finish. In a replacement, measure the existing rough opening and check what becomes visible once the old frame is removed. The details for CiiLOCK Sashless Window Systems by CiiLOCK Engineering can help confirm required clearances and installation tolerances; coordinate the sill and head junctions with the contractor.

What should I check before adding a screen?

Confirm that a compatible screen is available and how it attaches. Check that it does not obstruct pane movement or access for cleaning.

What safety requirements apply to a sashless window?

Ask the designer or contractor to check local requirements for safety glazing and fall protection at the proposed location. Confirm any opening limits before finalizing the design.

How can I plan for glass cleaning?

Confirm how both sides of the glass can be reached after installation. For windows above ground level, plan safe exterior access before approving the location.