Manufactured homes placed on temporary display or in storage by a manufacturer, dealer or distributor in excess of thirty days shall be:

(1) Supported under each main frame beam by supports located within two feet of each end and within four feet of the front and rear axle and other supports so that no span shall exceed sixteen feet;

(2) Made weather tight at any marriage line joint at the roof and wall lines; and

(3) In addition to subsections (1) and (2) of this section, manufactured homes in storage or on display longer than ninety days must also be supported at each centerline column and along each rim joist at the manufacturer's identified support points.