4000 Series Double Hung
4000 Series windows from Window World are beautiful as well as remarkably solid, sturdy and stable. Our beveled mainframe design is exceptionally slim and refined. Their sleek construction easily complements any type of architecture. You will find that 4000 Series vinyl frames will never chip, peel, crack or warp, and are maintenance free. The 4000 Series tilt-in sashes make cleaning a pleasure due to our effortless tilt latch. The ultimate choice for beauty, comfort and energy efficiency. The 4000 Series windows help to pay for themselves through lower energy costs, freedom from maintenance and increased property value. Our impressive Lifetime Limited Warranty* delivers the peace-of-mind you would expect from an industry leader.
4000 Series Features
Best-in-Class Performance Features:
- Reinforced narrow silhouette frame and sash profiles make a statement of style with their low-profile design. The result is a beautiful and expanded glass area. At the same time, internal chambers increase structural integrity, rigidity and energy efficiency.
- Composite meeting-rail reinforcement allows for secure mounting of hardware; the non-conductive material helps reduce the transfer of energy.
- End-of-throw cam shift locking delivers increased strength and protection to the recessed lock. It also includes an “unlocked” indicator.
- The smooth and uniform, true sloped sill quickly directs water runoff without the use of weep holes, keeping the exterior of the window clean and attractive.
- Our telescoping sill dam delivers a triple payoff: protection from air and water infiltration, increased structural stability and enhanced beauty.
- When extreme wind and weather hit, our proprietary sill interlock stands strong. Traditional sloped sill designs can allow the sash to bow during powerful winds, but with our interlocking sash-to-sill technology, the sash is channeled firmly into the window frame for a unified wall of strength.
- Our innovative screen bulb seal creates a snug fit that eliminates light and insect penetration between the screen and frame. It also aids in easy screen installation and removal.
Additional Sliding Window Features:
- Sashes glide horizontally for easy opening and closing.
- Both sashes lift out for convenient cleaning.
- Nylon-encased dual brass roller system for smooth gliding performance.
Insulated Glass Packages to Meet Your Needs.
Maximize your energy savings by choosing a high-performance SolarZone™ insulated glass† package to meet your specific climate challenges. The lower the U-Value, the less energy you’ll need to heat your home. The lower the Solar Heat Gain Coefficient (SHGC), the more you’ll conserve on air-conditioning.
Thermal Performance Comparison4 |
|
Double-Hung |
Sliding |
|
U-Value |
SHGC |
U-Value |
SHGC |
Clear Glass |
0.46 |
0.59 |
0.45 |
0.59 |
SolarZone |
0.29 |
0.30 |
0.28 |
0.30 |
SolarZone ThermD Elite |
0.27 |
0.21 |
0.27 |
0.21 |
SolarZone ThermD iE |
0.27 |
0.30 |
0.27 |
0.30 |
4Whole window values are based on double-strength glass, standard 4000 Series offering with
composite reinforcements. ST and HP performance values are also available.
Air/Water/Structural Results |
|
Air/cfm |
Water/psf |
Structural |
Window World 4000 |
0.4 |
6.0 |
DP40 |