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When the moisture suspended in warm air comes in contact with a cold surface, the water vapor condenses back into its liquid state. This is why a cold glass of water left under the sun appears to “sweat”. Condensation happens whenever there’s a difference in temperature between two objects.

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Vinyl windows are one of the classic window types seen in most American homes and remain one of the popular choices to this day. This is because, despite their low cost, vinyl windows can still do the job that windows with a significant price tag can do.

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