So very nice building was pretty easy, I've hammer out easily as a woman ;-). is supplied with an internal protection, but it does not use much, it will rain and all conditions were wet. So ordered tarpaulin .... same result if I did not know better, I would argue that water penetrates from below. Reclaims Plane, received without objection a new ... same result, wet conditions ... now the box in the living room ... also very decorative, but not quite the intention .... :)