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Subd. 12. Light and Ventilation. No person shall occUpy or Permit another <br />person to occupy, any dwelling or dwelling unit which does not comply with the following <br />requirements; <br /> <br />a) <br /> <br />Habitable Room Light and Ventilation. Except where there is supplied <br />some other device affording adequate ventilation and approved by the <br />Building Official, every habitable room shall have at least one window <br />facing directly outdoors which can be opened easily. The minimum total <br />of openable window area in every habitable room shall be per State <br />Building Code. <br /> <br /> b) Non-habitable Room Ventilation. Every bathroom and water closet <br /> compartment and every laundry and utility room shall contain at least 50 <br /> percent of the ventilation required for habitable rooms contained in <br /> paragraph (a) above, except that no windows shall be required if such <br /> rooms are equipped with~a ventilation system which is approved by the <br /> Building Official, <br /> <br /> c) Public Corridor and Stairway Light. Every public corridor and stairway in <br /> every common interest or rental facility shall be adequately lighted by <br /> natural or electric light at all times at one foot-candle at floor level, so as <br /> to provide effective illumination in all parts thereof. Every public corridor <br /> and stairway in structures containing not more than two dwelling units <br /> shall be supplied with conveniently located light switches controlling the <br /> adequate lighting system which may be turned on when needed, instead of <br /> full time lighting. <br /> <br /> Subd. 13. Foundations, Exterior Walls, Roofs. The foundation, exterior <br />walls, and exterior roof shall be substantially watertight and shall be kept in sound condition and <br />repair. The foundation shall adequately support the building at all points. Every exterior wall <br />shall be free of deterioration, holes, breaks, loose or rotting boards or timbers, and any other <br />condition that might admit rain or dampness to the interior portion of the walls or to the exterior <br />spaces of the building. Exterior walls must be free of graffiti and advertising except as allowed <br />by Section 9.12 (Signs) of this City Code. All exterior wood surfaces, other than decay resistant <br />materials, shall be protected from the elements and decay by paint or other protective covering or <br />treatment. If the exterior surface is unpainted or the paint-is blistered or peeling over 25 percent <br />of the surface area, the affected surface shall be painted with a color which matches the <br />unaffected surface or the entire surface shall be painted a consistent color. If the exterior surface <br />of the pointing of any brick, block, or stone wall is loose or has fallen out, the surface shall be <br />repaired. <br /> <br /> Subd. 14. Grading and Drainage. Except for the wetland and approved <br />ponds, every yard, court, walkway, driveway, and other portions of the premises on which a <br />building stands must be graded and drained so as to be free of standing water. The water must <br />not be drained onto adjacent properties except as provided in legally recorded easements or other <br />documents. <br /> <br />10 <br /> <br />-321- <br /> <br /> <br />