Storage Temp. for Live and Inactive Vaccines

Vaccines are stored at Tpt between 2 - 8ºC, If it rises above 8ºC its potency deteriorates but If it is stored below 2ºC what are the effects? As its a practice in India to store Live Vaccines in de freezers and Inactivated Vaccine at Room Temperature which is more than 27ºC. In some parts it is more than 40ºC.