Insulation is the material installed in a home to control heat entering or leaving the building. Without insulation all the heat and
coolness that you are generating with your heaters and air conditioners is lost through the ceiling, windows, walls and floors. When used
correctly, insulation creates a barrier to the transfer of heat from one side of the insulation material to the other. This can reduce the
need for mechanical heating and cooling while keeping your home at a more comfortable temperature.
5. Zoning
7. Building materials