| http://www.w3.org/ns/prov#value | - If it is already a dual-paned system, but with a metal fame, you might want to consider upgrading to a vinyl pane for other than just energy and money-saving reasons such as comfort, soundproofing, looks and ease of cleaning.??? Help is available.If you fall in love with a house that has baseboard heat, flimsy insulation and single-paned windows and you simply can not walk away, you have options.Cl
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