The requirements of this article shall apply, to service buildings, recreation buildings and other community service facilities when constructed, such as:
A. 
Management offices, repair shops and storage area.
B. 
Laundry facilities.
C. 
Indoor recreation areas.
D. 
Commercial uses supplying essential goods or services for the exclusive use of park occupants.
A. 
All portions of the structure shall be properly protected from damage by ordinary uses and by decay, corrosion, termites and other destructive elements. Exterior portions shall be of such materials and be so constructed and protected as to prevent entrance or penetration of moisture and weather.
B. 
All rooms containing lavatory facilities shall:
(1) 
Have sound-resistant walls extending to the ceiling between male and female sanitary facilities. Walls and partitions in lavatories and other plumbing fixtures shall be constructed of dense, nonabsorbent, waterproof material or covered with moisture-resistant material.
(2) 
Have at least one window or skylight facing directly to the outdoors. The minimum aggregate gross area of windows for each required room shall be not less than 10% of the floor area served by them.
(3) 
Have at least one window which can be easily opened or a mechanical device which will adequately ventilate the room.
(4) 
Toilets shall be located in separate compartments equipped with self-closing doors.