By isolating the pipes for the heating and hot water system, which are passing through the common areas, is being reduced the heat loss from these pipes.
The water that reaches the consumers comes with a higher temperature, than if the pipes are not insulated; while the heating temperature is higher and thereafter - the heating of the premises is more effective.
Furthermore, in connection with that, through the isolation of the pipes for heating and hot water that are passing through the common areas of the building, is being reduced the consumption of energy for heating of the premises and of the hot water.