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When your windows were new, they relied on wood to wood contact to prevent air infiltration. However, over the years, the wood has aged, shrunk, and probably deteriorated and/or accumulated multiple layers of paint, all of which compromises their ability to make a good seal. This degradation allows air infiltration (drafts), causing discomfort and increased energy costs. Some experts suggest that just stopping air-infiltration can improve the comfort level and efficiency by over 80%.

WINDOWLOGIC WEATHERSTRIPPING SYSTEM takes the most contemporary and state-of-the-art materials and components and inconspicuously applies them to the traditional window unit. Applying the system to your windows will practically eliminate air-infiltration while at the same time addressing other issues of concern like deteriorating jambs and sills and properly balancing the windows for easy operation.

Common Air Infiltration Points on Traditional Double-Hung Window
Common Deterioration Points on Traditional Double-Hung Window

Of the hundreds of windows we’ve encountered over the years that have been constantly exposed to the elements (no storm windows), almost all have the same things in common. The prime sills (if wooden), the step sills, the lower jamb sides, and lower parting stop show significant deterioration. The bottom surface of the bottom rail is also often pithy and deteriorated. This is only natural since those areas are most exposed to the sun’s UV rays and are flatter surfaces for water, snow and ice to accumulate. Not only do these areas need to be stabilized to prevent further deterioration, they need to be smooth and sound to provide mating surfaces for sealing the various parts of the sash, such as the bottom rail/sill and the parting stop/sash stile (vertical portion).

WINDOWLOGIC WEATHERSTRIPPING SYSTEM is more than just weather-stripping, it’s a complete system that addresses all the vulnerabilities of the traditional window. In subsequent pages you will see how these other components line and protect the jamb sides, wrap and cover the sill and provide smooth surfaces to which the actual weather-stripping materials can seal properly.

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