Most people do not think about insulating their garages. Without insulation, the temperature in the garage will be about the same as it is outside. So, if it is hot, your garage will be hot. If it is cold, your garage will be cold.
These fluctuations in temperature in your garage could potentially damage items you store in the garage. Plus, they can increase risks of certain hazards, like storing spray paint, gasoline, and other chemicals at extreme hot or cold temperatures.
Not to mention, the changes in temperature inside the garage can also affect temperatures inside your house. Each time you open the door to your home all that hot or cold air gets sucked inside causing your air conditioner or furnace to run.
