(a) Body frames shall be designed and constructed as complete units. Wall and floor surfaces shall be firmly attached to body framing members. Doors and windows shall be securely framed in place. Framing and exterior skin shall be surface treated or painted to prevent deterioration.
(b) Roofs shall be pitched for proper drainage and shall be weathertight. Roof decks shall be of metal or noncombustible materials.
(c) Wood body framing shall be of seasoned lumber and shall provide adequate support and rigidity. Members shall be joined so as to insure permanent attachment to each other.
(d) Metal body framing shall be of structural formed sections, riveted, bolted or welded together. Where different metals are joined, precaution shall be taken to prevent electrolytic action.
(e) Insulation of floors, roof and exterior walls shall consist of noncombustible materials.
(f) Ventilation shall be provided to minimize deterioration of structural members from condensation or other cause.
(g) Chassis shall extend substantially the length of the body and shall be capable of supporting the live and dead loads to which subjected.
(h) Tongue or drawbar shall be secured to the chassis and shall be capable of supporting the weight of the forward end of the mobile home. If designed to support gas cylinders, the tongue shall be of sufficient strength and shall permit secure attachment.
(i) Hitch shall be securely attached to the tongue so as to become an integral part of the tongue.
(j) Axles, spring assemblies and wheels shall be capable of supporting the calculated loads.
(k) Placement of mobile home on mobile home stand by jacks or supports shall be such as to insure the retention of the mobile home in a fixed position.