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What is an awning window?

An awning window has a sash hinged at the top that swings outward from the bottom. Its opening provides ventilation, and compression weather stripping helps seal it when closed.

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Do awning windows provide ventilation?

An awning window provides an opening for ventilation, but the available opening depends on its design. The Virginia Energy Savers Handbook notes that some designs also move the top downward to increase the ventilation area: “With some designs, the top of the window drops down to allow greater ventilation area.” Source: Virginia Department of Mines, Minerals and Energy, read 2026-10-31.

What is an awning window in the NFRC guide?

The NFRC guide identifies the hinges and direction of sash movement. An awning window swings outward from its lower edge while remaining hinged along the top; the guide describes that arrangement directly: “Awning windows have hinges on the top of their sashes, and swing out from the bottom.” Source: National Fenestration Rating Council, read 2026-10-31.

Are awning windows energy efficient?

The closing seal is one part of energy performance. The Virginia Energy Savers Handbook describes compression weather stripping on awning windows; its statement about airtightness does not establish a particular window’s overall energy rating: “Like casement windows, these windows use compression weather stripping and are generally quite airtight.” Source: Virginia Department of Mines, Minerals and Energy, read 2026-10-31.

Can awning windows be left open during rain?

The Virginia Energy Savers Handbook describes rain-sheltered ventilation as a feature of these windows. That general description does not specify wind direction, rainfall intensity or an opening angle, so it should not be read as a promise for every storm: “One good feature of these windows is they can be left open for ventilation and still keep rain from entering the house.” Source: Virginia Department of Mines, Minerals and Energy, read 2026-10-31.

Do Awning Windows Have Screens on the Inside?

Yes. PNNL’s Building America guide places awning-window insect screens on the interior side of the glazing. That location is part of the screen arrangement described in its window-attachment guidance: “For some window types (double hung, single hung, and sliders), screens are located on the exterior side of the glazing and for other glazing types (casement and awning), screens are located on the interior side of the glazing.” Source: Pacific Northwest National Laboratory, read 2026-10-31.

Sources

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