Single hung operates vertically (up and down). One sash is stationary and the other sash moves up and down and can tilt into the room for easy cleaning. Includes a screen that covers half the window.
A double-hung has two sashes that move up and down and both can tilt into the room for easy cleaning. Unlike typical windows, all WELDA Windows feature not one, but three continuous weather-strip seals, making them virtually airtight.
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