Hawthorne
The Hawthorne Double Hung Features:
- Heavy walled PVC framing acts as a natural insulator
- Closed cell compression seal at sloped sill resists air and water penetration
- Fin-Seal weatherstripping at sill further reduces air infiltration
- 3/4" Insulating glass provides optimum energy efficiency
- Dual hollows at lift rail add strength and insulation
- Warm edge low conductance spacer resists energy flow through the edge of glass
- Rigid leg on sill prevents screen rattle even on windy days
Optional Features:
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
The Hawthorne Slider Features:
- Two sets of double-wheeled brass rollers transfer weight of glass directly to frame reducing stress on sash members
- Rollers glide on integral track system allowing for effortless fingertip operation
- Both sashes of a twin vent and the operating sash lift out for easy cleaning
- Independent weep chambers on frame assure effective water run-off
- Heavy walled PVC framing acts as a natural insulator
- 3/4" Insulating glass provides optimum energy efficiency
- Warm edge low conductance spacer resists energy flow through the edge of glass
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
The Hawthorne Casement Features:
- Sash opens completely, so windows can be cleaned easily from inside your home
- All components are corrosion resistant, providing years of trouble-free performance
- Multi-Point Locking System locks sash at three points for utmost security
- Three layers of weatherstripping assure effective barrier to air and water penetration
- Top rated hardware system allows even the largest casements to be effortlessly and smoothly operated
- Narrow frame allows maximum exposed glass area
- 3/4" Insulating glass provides optimum energy efficiency
- Warm edge low conductance spacer resists energy flow through the edge of glass
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
Belmont
Double Hung
Two vertically sliding sashes that tilt to the inside for easy cleaning
Belmont Double Hung Features:
Cam Lock action draws sashes closer together for positive lock
Interlocking Meeting Rail: Integral interlock provides additional security
Heavy walled PVC framing acts as a natural insulator
Closed cell compression seal at sloped sill resists air and water penetration
Fin-Seal weatherstripping at sill further reduces air infiltration
3/4" Insulating glass provides optimum energy efficiency
Dual hollows at lift rail add strength and insulation
Warm edge low conductance spacer resists energy flow through the edge of glass
Rigid leg on sill prevents screen rattle even on windy days
Optional Features:
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
Single Hung
One vertically sliding lower sash that tilts in for cleaning and one fixed upper glass that does not slide or tilt.
Belmont Single Hung Features:
- Cam Lock action draws sashes closer together for positive lock
- Interlocking Meeting Rail: Integral interlock provides additional security
- Heavy walled PVC framing acts as a natural insulator
- Closed cell compression seal at sloped sill resists air and water penetration
- Fin-Seal weatherstripping at sill further reduces air infiltration
- 3/4" Insulating glass provides optimum energy efficiency
- Dual hollows at lift rail add strength and insulation
- Warm edge low conductance spacer resists energy flow through the edge of glass
- Rigid leg on sill prevents screen rattle even on windy days
Optional Features:
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
Twin Vent Slider
Two horizontally sliding sash that lift out to the inside for cleaning.
Twin Vent Slider Features:
- Cam Lock action draws sashes closer together for positive lock
- Interlocking Meeting Rail: Integral interlock provides additional security
- Heavy walled PVC framing acts as a natural insulator
- 3/4" Insulating glass provides optimum energy efficiency
- Warm edge low conductance spacer resists energy flow through the edge of glass
Optional Features:
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
Single Vent Slider
One horizontally sliding sash that lifts out to the inside for cleaning and one fixed glass that does not slide or lift out to the inside.
Single Vent Slider Features:
- Cam Lock action draws sashes closer together for positive lock
- Interlocking Meeting Rail: Integral interlock provides additional security
- Heavy walled PVC framing acts as a natural insulator
- 3/4" Insulating glass provides optimum energy efficiency
- Warm edge low conductance spacer resists energy flow through the edge of glass
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
The Belmont Casement
- Sash opens completely, so windows can be cleaned easily from inside your home
- All components are corrosion resistant, providing years of trouble-free performance
- Multi-Point Locking System locks sash at three points for utmost security
- Three layers of weatherstripping assure effective barrier to air and water penetration
- Top rated hardware system allows even the largest casements to be effortlessly and smoothly operated
- Narrow fame allows maximum exposed glass area
- Heavy walled PVC framing acts as a natural insulator
- 3/4" Insulating glass provides optimum energy efficiency
- Warm edge low conductance spacer resists energy flow through the edge of glass
Optional Features:
- InnovativE high-performance glass utilizes Low-E coating specifically engineered for local requirements
Energy Efficiency
InnovativE
Insulating glass package combines low emissivity (Low-E) glass with a warm edge spacer to optimize the balance between radiant heat loss, passive solar heat gain and visible light transmittance.
Your Invisible Barrier
When you consider energy efficiency, perhaps the most critical part of any window is the insulating glass system. It only makes sense: the glass has the largest surface area.
Windows Can Help
To understand how windows can help, you must first understand that energy is lost through windows in three major ways: conduction, convection and radiation.
Conduction
The framing of all Alliance windows is made from vinyl, a natural insulator. To prevent energy loss through conduction, all insulated glass units utilize Duralite warm edge technology. Using a low-conductance spacer, this method assures maximum resistance to energy flow.
Convection
Energy can also be lost through natural convection currents that can form within the insulating glass. Thats why Alliance InnovativE glass is 3/4" thick, shown by government testing to be the optimum dimension to prevent these convection currents.
Radiation
Radiation occurs when long wave heat energy moves toward cold areas.
The most effective barrier to radiation is an optimal special Low-E coating, a standard part of our InnovativE glass package.
This special coating actually reflects the long wave radiation back to its source.
This is important to understand, as radiation affects energy consumption, no matter what part of the country you call home.
Solar Gain vs. Heat Loss
The concerns of homeowners in the North are quite different than those in the South.
In the North, where heating is a concern, glass must allow maximum solar gain, while preventing heat loss.
Spacer Performance
The Windgate Spacer Performance
Duralite spacers are the best spacers in comparison testing with other commonly used insulated glass systems. Duralite spacers yield a lower window U-factor, up to 0.03 over other less efficient systems. And that means more comfort and energy savings for you.
Condensation Resistance: No spacer system can eliminate condensation, but Duralite reduces conductivity by 50% over other warm edge spacers. Reducing conductivity also reduces condensation.
Warranty
The Windgate Warranty
All of our products are covered by the
Alliance AssurancePlus Lifetime Warranty