Manufactured homes, and their integral parts, because of the manner of their construction, assembly, and use and that of their systems, components and appliances, including, but not limited to, heating, plumbing, and electrical systems, like other finished products having concealed vital parts, may present hazards to the life and safety of persons and to the safety of property unless properly manufactured. In the sale of manufactured homes, there is also the possibility of defects not readily ascertainable when inspected by purchasers. It is the policy and purpose of this State to provide protection to the public against those possible hazards and for that purpose to forbid the manufacture and sale of new manufactured homes which are not constructed so as to provide safety and protection to their owners and users and further to require that the business practices of the industry are fair and orderly.