Dormer Windows

Double Hung

Peeking out from a slate roof, this dormer features two double-hung windows, a style named for the fact that the top and bottom sections each move up and down. Double-hung windows are popular where houses don't have air conditioning because they can be opened part way at the top and at the bottom. That creates a draft, which helps push hot air out through the top as cooler air flows in at the bottom.

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