What is the difference between replacement and retrofit windows?

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What is the difference between replacement and retrofit windows?

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Installation of a replacement window involves removal of existing sashes and screens, and fitting the new window inside the existing wood frame or jamb. To make your windows maintenance free any exterior exposed wood is covered using aluminum cladding. This method is used for approximately 95% of all window installations into existing openings. Retrofit (sometimes called full frame replacement) involves not only the removal of your current sashes and screens, but also removal of the existing wood jamb, going right back to the rough stud opening. This is considered the top of the line installation method. Retrofit does cost a little more, but the benefits make it worth considering. With a typical replacement window the glass area is reduced. A retrofit installation, however, maximizes your glass area because the existing jamb is removed. Removing the jamb also gives the opportunity to address problems of insufficient insulation and wood rot. At Aluminum Associates, this process is also