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.
Highlights of Ultra Series Sterling Double Hungs with impact performance:
- Meets IPD4 criteria (large missile impact Level D and Wind Zone 4 testing standards)
- Meets HVHZ in Florida (winds over 140 mph)
- Double pane insulating impact laminated glass units are energy efficient; single pane glass is available
- Impact modifications include a glazing retention system, modified glazing beads, steel reinforcement at the checkrail, and more
- The beauty of Sterling double hungs is not sacrificed – there are no extra locks, visible rods, screws or brackets
Highlights & options of all Ultra Series Sterling Double Hungs:
- Concealed jambliners
- Innovative, dual-positioning lever allows sash to be unlocked, operated & tilted in for cleaning
- Durable, extruded aluminum clad exterior with fluoropolymer exterior finish and a 30-year limited exterior finish warranty
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Over 35 exterior colors, including anodized finishes - Over 10 interior finish options, including paint, stain and clear coat
- Full and half screens are available with GreenGuard® Certified BetterVue® mesh
- StormGuard combination storm & screen units are available
- Retractable screen kits are available
- Available with FSC-certified wood in various species
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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