Nobody heard the shots. All the houses in the neighbourhood were too well insulated for sound ever to get in or out. A sound wanting in or out of Dwayne's dream house, for instance, had to go through an inch and a half of plasterboard, a polystyrene vapour barrier, a sheet of aluminium foil, a three-inch airspace, another sheet of aluminium foil, a three-inch blanket of glass wool, another sheet of aluminium foil, one inch of insulating board made of pressed sawdust, tarpaper, one inch of wood sheathing, more tarpaper, and then aluminium siding which was hollow. The space in the siding was filled with a miracle insulating material developed for use on rockets to the Moon.
[Breakfast of Champions, Vonnegut, K.]