House 5 Variants including the ones without a second floor room, have broken Collisions allowing Vehicles (being them cars or Static weapons), Bodies, grenades and Objects to clip through and fall to the INSIDE of the ground floor ceiling or second story floor.

the House 5 Variants without a 2nd story have it's ceiling with broken collisions aswell making some static weapons hang off the roof into the house, if a static weapon is placed on top of it and it tumbles to the side, it stays hanging through the floor from the top of the house