clapboard       
noun uk/ˈklæp.bɔːd/ us/ˈklæp.bɔːrd/
 [ U ] US(建筑物外墙的)护墙板,风雨板 
a series of boards fixed horizontally to the outside of a building, with each board partly covering the one below, to protect the building from the weather
  The town of Rockport is full of rows of white clapboard houses. 罗克波特镇到处是一排排装有白色护墙板的房子。 
 Compare: weatherboarding