Specialty Products: Double Hungs
Double Hungs Beyond the Ordinary
Kolbe offers double hungs to meet virtually every application, from old world aesthetics to massive sizes. Majesta and
Sterling double hungs have concealed jamb liners, traditional design, and are available as either Heritage wood or Ultra
extruded aluminum clad units.
Majesta double hungs are designed for massive openings and can reach sizes
of up to 6' x 12'. They offer exceptional performance ratings against air, water
& structural forces. Units can meet a rating of CW-PG65 for units up to 56" x
96" and LC-PG65 for units up to 60" x 120". Despite the large sizes, Class 5
balances help them operate smoothly.
Sterling Double Hung
U.S. Patents 7,296,381; 7,448,164; 8,196,355 & 8,429,856
Sterling double hungs feature a patented interior wood cover to conceal the
jambliner, while giving windows a rich, full-wood appearance. The lock system
boosts performance to a level not often reached by double hung windows – they
can meet a rating of LC-PG65 and an impact rating of IPD4. Plus, Ultra Sterling
double hungs have attained HVHZ (High-Velocity Hurricane Zone) certification in
Florida. Class 5 balances can be incorporated to offer larger size units.
Old World Classic
Heritage Series Old World Classics are old-style wood chain & pulley windows.
They have brass pulley systems, solid brass chains, and alloyed weights. This
allows incredibly easy operation, due to the proportional balance between the
sash and weights. Choose from single, double or triple hungs. Ogee lugs can be
integrated into the top sash stiles for historical authenticity.
At Kolbe, we care about the big picture as well as the smallest detail. We’re constantly innovating to provide products that
push the limits of what’s possible. Numerous specialty products are available to help take your project to new performance
Kolbe’s Commercial Capabilities