Firstly: The landlord should repair whatever gets damaged of rented property without the tenant having caused the damage, or what gets worn out by normal usage, such as if the roof collapses or a window develops problems and so on, because the tenant has the right to make use of what he is renting, which should be in good condition, for the duration of his tenancy. Secondly: If the landlord does not fix what needs fixing, and as a result something belonging to the tenant gets damaged, then he becomes liable for it.