Ottawa : Règlement no 2013-416, art. 78 — Property Standards By-law

1) The exterior walls of a vacant building and their components shall be maintained so as to prevent their deterioration due to weather or vermin, and shall be so

• a) maintained by, painting, restoring or repairing of the walls, coping or flashing; or
• b) the waterproofing of joints and of the walls themselves. 2) The visible surface of all exterior walls of a vacant building shall consist of materials commonly used or designed as building components. 3) Patching and repairs to exterior walls of a vacant building shall be made with the same or visually similar material and shall blend with the existing adjacent material or the whole shall be painted or clad to form a solid appearance with the surrounding surface. 4) Appropriate measures shall be taken to remove any unsightly markings, stains or other defacement, including graffiti, occurring on an exposed exterior surface of a vacant BY-LAW NO. 2013-416 building and, where necessary, to restore the surface as nearly as possible to its original condition. 5) All exterior surfaces of a vacant building shall be of materials which by themselves or

when treated provide adequate protection from the weather. ROOF