I love the roof too ... unfortunately that B'house is one that was hanging out in a tree for a few years and the round thingy on the roof that it hangs from is extremely loose and ready to fall out. The house itself is wood and has deteriorated so much that it's falling away from the roof. The roof although weathered and scratched seems sturdy so I will use it for another house once the current abode falls apart completely! Down here in the heat and humidity some things don't last very long when left outside to the elements.
