Code of Veterinary Practice For Poultry Processing Plant
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9.4.2 Walls and ceilings should be of light colours that will re ect light and give a bright appearance to the rooms.
9.4.3 Internal ledges should be sloped down at an angle of 45 degrees.
9.4.4 Exterior openings should be insect proof and construction should ensure that rodents and other vermin are excluded.
9.4.5 If mechanical ventilation is installed, it should be capable of providing at least 4 air changes an hour.
9.4.6 Fresh air intake for mechanical ventilation should be located in such a way that air is not contaminated.
9.4.7 Required Facilities
9.4.7.1 Dining Rooms
Where common dining rooms have a direct connection with change rooms, entrances to the change room should be provided with full-height doors and privacy screens.
9.4.7.2 Toilet Rooms
A  oor waste of suitable size should be provided in water closet and urinal rooms.
a) Water closet and urinals should not be in shower rooms.
b) Doors leading to toilet rooms should be full height, completely  ll the opening and be self-closing.
c) Toilet rooms without means of natural ventilation should be effectively mechanically ventilated to the outside air.
d) Where mechanical ventilation is used, it should be activated by a common switch with the artificial lighting in the area.
e) Toilet rooms which are mechanically ventilated should have a louvred section at least 300mm x 300mm in the lower panel of the door.