• noobnarski@feddit.de
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      6 months ago

      Because its not possible to pull the window into the seal when the window also needs to move up and down.

        • noobnarski@feddit.de
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          6 months ago

          And how is it sealed on the sides and the top? European casement windows actually get pulled into the frame (and seals) all around the frame by rollers which move sideways along sloped ridges when you move the hinge to the closed position.

          • CaptnNMorgan@reddthat.com
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            6 months ago

            The window stays sealed on all other sides. It just slides up and down. Windows in Europe sound needlessly complicated