The growing awareness of climate change and its link to carbon emissions causing climate warming and has caused a concern in the community. A substantial contributor of carbon emissions emitted is due to the energy consumed by residential household. Because of the increasing cost of energy, there is an urgency directed to reducing the overall consumption of energy by households. Cooling and heating of a residential home consumes a large proportion of the total household energy. The energy consumed in heating and cooling for a home can be easily and economically reduced by installing insulation in the wall and ceiling. This study envelope the above concept by comparing the thermal efficiency of the most common external wall structures, with varying amounts of insulation added. From this comparison the cost savings achieved by using insulation in walls were identified. A 79% cost saving was achieved in heating/cooling when a non insulated wall was compared to an insulated wall in a hotter climate. The results of study also identified the substantial energy cost increase to heat and cool a house without insulation as the climate gets extreme. There are approximately 15% of households without insulation not being able to install appropriate insulation. This section of the community in Sydney currently is at greatest risk of being unable to deal with climate change.
Saha, S. K. (2011). Cost effective thermal wall system for residential housing. In Procedia Engineering (Vol. 14, pp. 1913–1919). https://doi.org/10.1016/j.proeng.2011.07.240