30/11/2022
Why is home insulation so important?
To understand why insulation is important, we need to understand thermodynamics. It sounds complex but it’s pretty simple.
Basically, it tells us that heat moves from areas of high temperature to low temperature. And the age-old saying that heat rises? It’s true, but not always. Heat can move all sorts of directions; a difference in temperature is what drives heat to move up, down, or sideways.
Another factor in the movement of air is density. In the winter, warm, low-density air inside a home will move up and out into the dense, cold air outside. During the summer, warm, low-density air from outside moves inside a home from the top and sinks to the bottom, while the cool, dense air inside leaks outside through the bottom of a home.
If houses could be 100 percent sealed, air movement would work a lot differently. But even with the best insulation out there, air will still find ways to invite itself in, and see itself out.
The point of insulation is to combat the movement of air. And since air can move in all sorts of directions, insulation is needed in roofs, ceilings, walls, and floors to prevent air from entering and leaving.
Insulation is one of the most important factors that contribute to a home’s energy efficiency — or inefficiency.
With improper insulation, a homeowner spends more on heating and cooling, which uses more resources to run, and costs more money.