Protective treatment. All exterior surfaces, including
but not limited to doors, door and window frames, cornices, porches,
trim, balconies, decks and fences, shall be maintained in good condition.
Exterior wood surfaces, other than decay-resistant woods, shall be
protected from the elements and decay by painting or other protective
covering or treatment. All siding and masonry joints as well as those
between the building envelope and the perimeter of windows, doors,
and skylights shall be maintained weather-resistant and water-tight.
All metal surfaces subject to rust or corrosion shall be coated to
inhibit such rust and corrosion and all surfaces with rust or corrosion
shall be stabilized and coated to inhibit future rust and corrosion.
Oxidation stains shall be removed from exterior surfaces. Surfaces
designed for stabilization by oxidation are exempt from this requirement.