Translation of "window-shutter" into Italian

If a window's shutters are hermetically sealed, although the light is shining it cannot illuminate the house.

Se le imposte delle finestre sono ermeticamente chiuse, il sole pur splendente non può illuminare la casa.

People had closed their window shutters early, and the streets were dark and deserted.

Le persone avevano chiuso presto le persiane, le strade erano buie e deserte.