Origin II™ Vinyl
The heart of the Preservation platform is Origin II™ virgin uPVC vinyl. This advanced vinyl is rugged, durable, and virtually maintenance free. The material's low thermal conductivity makes it the perfect choice for window manufacturing. It assures that Preservation Windows will never rot, peel, blister, swell, or deteriorate from corrosion or pitting. Preservation's Origin II vinyl also features through-and-through color compounding, so your windows will never require staining or painting. And, Preservation utilizes natural warm whites and taupes for its base vinyl color.
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ProgressiveEfficiency Sash and Masterframe Insulation
The uPVC vinyl used in the construction of Preservation Windows provides superior energy efficiency. But we've taken thermal performance even further by incorporating ProgressiveEfficiency high-density polyisocyanurate insulation — one of the highest efficiency materials available — into both the sashes and masterframes of our windows. Preservation's insulation is also pre-expanded to eliminate the inconsistencies found with some insulating methods.
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IntegraWeld Fusion Welding
 Every sash and mainframe corner of the Preservation Window features IntegraWeld Fusion Welding, a technologically advanced method of construction that delivers superior strength. The IntegraWeld method produces full-contact welding points, and does not require below-the-face flash clean up. The result is maximum strength welding with a clean low-spread finished appearance. And, unlike mechanically fastened windows, Preservation Window corners will never work loose or leak air or water.
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TrueCapture™ Sloped Sill
 Our double-hung windows feature a TrueCapture™ sloped sill. This sill design incorporates the elegant look of a traditional sloped sill with the energy-efficient properties of a capture sill. The result is a great looking window that is better able to withstand harsh elements.
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Renovation Masterframe
 Preservation Double-Hung, Sliding, and Casement Windows feature a beveled exterior masterframe. This masterframe design helps the Preservation Window accommodate differing installation methods and architectural styles. It helps to ensure that every Preservation Window installation will look and perform great, now and for generations to come.
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EvenForce™ Balance System and E-Gard® Operating Hardware
Our 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. Our casement windows feature environmentally friendly E-Gard® operating hardware. This heavy-duty hardware provides maximum strength for lifelong easy-of-operation, along with a corrosion-proof finish that is guaranteed for life.
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Maxum33™ Fiberglass Sash Reinforcement
 Our double-hung and sliding windows feature Maxum33™ fiberglass sash meeting rail reinforcement. Maxum33™ adds extra strength to the sash-meeting rail to help prevent flexing during heavy winds.
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Lifetime Limited Transferable Warranty
Peace-of-mind. It should be the result of any good home remodeling project. Every Preservation Window is backed by a lifetime limited warranty to provide you with years of worry-free comfort. And because our warranty is fully transferable, it not only protects you, but also the resale value of your home. Plus, the warranty features an unparalleled non-prorated seal failure and glass breakage warranty. See printed warranty for complete details.
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