Exceptional Window Design and Function
Preservation Windows encompass all of the hallmarks of exceptional window design, in custom styles to beautifully complement your home’s architecture. Designed for increased energy efficiency and generations of worry-free enjoyment, these masterfully crafted windows will help reduce your heating and cooling use and create a more comfortable indoor climate.2
Every sash and masterframe corner of the Preservation Window features IntegraWeld Fusion Welding, a technologically advanced method that produces full-contact welding points for superior strength and a clean finished look.
The premium vinyl resin used in the construction of the windows provides superior energy efficiency. But we’ve taken thermal performance even further by incorporating Progressive- Efficiency high-density carbonized polystyrene foam enhancement.
The beveled exterior masterframe on Preservation Double-Hung, Sliding and Casement Windows is precision-engineered to ensure that proper installation will look great and perform great for generations to come.
Preservation Double-Hung Windows feature the EvenForce block and tackle balance system. This system ensures smooth and easy sash opening and closing and has been rigorously tested for decades of operation.
The Maxum33 fiberglass sash reinforcement in Preservation Double-Hung and Sliding Windows adds extra strength to the sash meeting rail to help prevent flexing during heavy winds.
BetterVue® screens do for your windows what high-definition technology has done for television: they enhance the view by making it sharper and brilliant. You'll have better airflow, a clearer view and superior insect protection versus standard fiberglass screens.
Preservation Double-Hung Windows feature a TrueSloped low-profile sill. This innovative design is expertly crafted to provide a highly efficient drainage system that promotes water runoff without the use of weep holes.
Peace of mind. It should be the result of any good home remodeling project. Every Preservation Window is backed by a Lifetime Limited, Transferable Warranty* to provide you with years of worry-free comfort.
WHILE A WINDOW’S BEAUTY CAN NEVER BE EXPRESSED IN NUMBERS . . . ITS PERFORMANCE CAN
Air Infiltration
Preservation Windows are tested for air infiltration using the industry’s rigorous air infiltration resistance testing procedure. Test ASTM E283.
WATER-RESISTANCE
Preservation Windows are subjected to a driving water spray of five gallons per hour/per square foot (equals rainfall of eight inches per hour) at a simulated wind speed of over 51 mph. Test ASTM E547.
STRUCTURAL LOAD
Preservation Windows are subjected to interior (negative) and exterior (positive) structural load conditions simulating a wind speed of over 143 mph. Test ASTM E330.Preservation Windows are subjected to interior (negative) and exterior (positive) structural load conditions simulating a wind speed of over 143 mph. Test ASTM E330.
