Louisiana Civil Code Tit. IV, Art. 660. Keeping buildings in repair

The owner is bound to keep his buildings in repair so that neither their fall nor that of any part of their materials may cause damage to a neighbor or to a passerby. However, he is answerable for damages only upon a showing that he knew or, in the exercise of reasonable care, should have known of the vice or defect which caused the damage, that the damage could have been prevented by the exercise of reasonable care, and that he failed to exercise such reasonable care. Nothing in this Article shall preclude the court from the application of the doctrine of res ipsa loquitur in an appropriate case.