Any building or structure which has any of the conditions or defects described in this section shall be considered unsafe, if the conditions or defects are found to endanger the life, health, property or safety of the public or the occupants. Any building or structure found to be unsafe under this subchapter is declared to be a public nuisance and shall be abated by repair, rehabilitation, demolition or removal. A building is unsafe whenever the building official determines:
(A) Any door, aisle, passageway, stairway or other means of exit is not in conformance with the building code effective at the time of construction.
(B) Stress in any structural materials or member or portion of a member, due to all loads, both vertical and lateral, is more than one and one-half times the working stress or stresses allowed by this chapter for new buildings of similar construction, purpose or location.
(C) Any portion has been damaged by fire, earthquake, wind, flood, deterioration or such other cause as to result in wracking, warping, buckling or settling of any portion of the structure so as to reduce structural strength or stability 33% or more for supporting members, or 50% or more for nonsupporting members, below the minimum strength requirements of current building code requirements.
(D) Any portion, or any member, appurtenance or ornamentation, either interior or exterior, is not of sufficient strength or stability, or is not anchored, attached or fastened in place securely and is therefore reasonably likely to fall, become detached or dislodged, or collapse and cause injury to persons or damage to property.
(E) Exterior or interior bearing walls or other vertical structural members list, lean or buckle to the extent that a plumb line passing through the center of gravity does not fall within the middle one-third of the base of the vertical component.
(F) Any building or structure used or intended to be used for dwelling purposes, because of inadequate maintenance, dilapidation, decay, damage, faulty construction or arrangement, inadequate light, air or sanitation facility, is determined to be unsanitary, unfit for human habitation or to be in such condition as would likely cause injury, sickness or disease.
