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Sterling Double Hungs meet HVHZ

Ultra Series Sterling double hung windows with K-Force® impact performance upgrades have achieved HVHZ certification in the state of Florida. This means that they have been tested and approved for use in high velocity wind zones (HVHZ), where wind speeds can exceed 140 miles-per-hour.

Impact resistant sash windows

Ultra Series Sterling double hung sash windows for impact resistance

 

 

Highlights of Ultra Series Sterling Double Hungs with impact performance:

Highlights & options of all Ultra Series Sterling Double Hungs:

Ultra Series Sterling double hungs with impact resistant modifications are a beautiful choice for both new construction and renovation in either residential or commercial building projects.

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