A mobile home may be occupied on an emergency basis for temporary living quarters in any residential zone or on any existing residential dwelling lot within the Township, provided that a permit is granted by the Township Construction Official. A permit shall be effective for a six (6) month period and shall not be issued unless the applicant's home is uninhabitable because of fire or other casualty. The permit may be extended for three (3) months, upon show of good cause, by resolution of the Zoning Board of Adjustment.