In countries and areas with cold weather , especially during winter, a substantial amount is spent on Heating, Ventilation, Air conditioning (HVAC) systems. The electricity or gas bill depends to a large extent on how well insulated the property is.
If there are holes or gaps in the wall or the thermal insulation is not proper, heat will be lost and more power will be required to keep the room or interiors of the home at the desired temperature.
In some countries, citizens get incentives for installing high quality thermal insulation in their home.
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