We enclosed our lanai with 60" glass sliders over 20" transom windows. With 2 glass sliders Factory moulded over a 20" transom, let me tell you these units are very heavy. We had some contractors come in and wanted to install them on existing alunimun frames while others including the one we selected told us the windows may be able to withstand 120mph winds but they are only as good as the framing holding them in place. Dont believe someone that tells you we will install them to meet existing county standards...that person most likely does not know what he or she is talking about. They should be able to explain to you...to your satisfication....that the framing is as good as the window unit(s) you are instaling. Acrylic windows are not as heavy and require lighter framing but they are only rated for approx 70mph winds and REMEMBER....we do live in florida.
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