Section 304.5 of the International Property Maintenance Code is hereby amended and shall read as follows:

304.5 Foundation walls. Foundation walls shall be maintained plumb and higher than the adjacent ground level. They shall be free from open cracks, breaks and holes except for necessary ventilation holes. If ventilation holes are needed, the holes shall be adequately screened to prevent entry by rodents and other pests. The foundation elements shall fully support the structure as intended. Any repair or replacement necessitated by this section shall be accomplished with materials that are compatible with the remaining foundation.