(1)
In a farm building classified as a Group G, Division 3 major occupancy where heating and drainage systems are installed to prevent the accumulation of snow and water, the supporting structure for the light-transmitting roof areas is permitted to be designed for a specified roof snow load of not less than 1 kPa, provided
(a)
the heating system is capable of maintaining a minimum interior temperature of 10°C throughout the farm building, and
(b)
an emergency power supply is provided that
(i)
is supplied from a power source such as batteries, a generator, or a combination thereof, and
(ii)
will continue to supply power to the heating system in the event that the regular power supply to the farm building is interrupted.