Ottawa By-law 2013-416, s. 51 — Property Standards By-law

1) The exterior walls and their components shall be maintained so as to prevent their deterioration due to weather or insects, and shall be so maintained by,

• a) 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 shall consist of materials commonly used or designed as building components. 3) Patching and repairs to exterior walls 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. BY-LAW NO. 2013-416 4) Appropriate measures shall be taken to remove any unsightly markings, stains or other defacement, including graffiti, occurring on an exposed exterior surface and, where necessary, to restore the surface as nearly as possible to its original condition. 5) All exterior surfaces shall be of materials which by themselves or when treated provide adequate protection from the weather. 6) All canopies, marquees, signs, awnings, stairways, fire escapes, standpipes, exhaust ducts and similar overhang extensions shall be,
• a) maintained in good repair;
• b) properly anchored; and
• c) protected from the elements and against decay and rust by the periodic application of a weather coating material such as paint or other protective treatment. ROOF