Attic Insulation Upgrade Beneficial Any Time of Year

How does attic insulation keep my home cool in the summer?

This is a common question among home owners. Most people associate insulation with keeping a space warm but don’t seem to make the connection between insulation and keeping a space cool.

Insulation works in a very simple way, it is a poor conductor. We all learned in elementary school that a good conductor easily transfers energy, either electricity and/or heat. For instance materials like copper, aluminum or iron are good conductor’s of heat and/or electricity because they transfer energy easily – this is why we use various metals as a means to distribute heat or electricity.

Materials like woods, plastics and insulation are all poor conductors because they transfer electricity or heat poorly. Hence why wood is used in most building construction over steel. So, during the winter, heat from your home is less likely to escapes through your roof or walls if they are properly insulated and sealed. The same is true for heat during the summer.  If your home is properly insulated, heat from the outside will have a much harder time making its way into your home via the attic or walls, thus keeping it cooler.