Insulation acts as a thermal barrier which suppresses the movement of radiant heat in and out of your home. All that means is that it keeps heat from getting into the home when it’s hot and keeps the heat in when it’s cold.
The Summer sun’s intense rays cast down onto your home. This causes the roof and walls to heat up, which in turn causes the attic temperature to rise. Attic temperatures can reach nearly 170 degrees. The trapped heat then warms your house making things quite uncomfortable.
It is fairly common for an air conditioning system to runs all day and not cool the house efficiently. This is usually due to a poorly insulated home. Heat enters the home at the same rate that your air conditioner is able to cool it.
Properly insulating your attic space and walls will radically reduce the amount of heat coming into your home. This allows the house to stay cooler for longer, and keeps the air conditioner from working too hard.
Insulation will also keep your home more comfortable in the winter. Insulation is great when you are trying to retain some heat. The same way insulation can stop heat from getting into your home, it can also contain the heat during the winter, which keeps your furnace from working too hard, and running your utility costs up.
A properly insulated home allows the air conditioner and heating system to work more efficiently, which saves you money while also keeping the air from drying out too much due to a system that is constantly running. Insulation also acts as a sound barrier to some extent, which is great if you live near an airport, freeway or other noisy areas.