Cold Air Penetraton

The huge concept of Cold Air Penetration is probably one of my favorite topics because it is so very IMPORTANT.

As you read our blog you will find that we often take positions and opinions that are somewhat unique or different than many others.  One of the most important things to always consider as you try to make your new home more energy efficient is the ongoing battle to reduce Cold Air Penetration.  If you can stop cold air from penetrating the building envelope you will greatly reduce the amount of Heat Loss.  And, let’s face it we all have the same goal and that is to reduce Heat Loss.

You will quickly see that in the upcoming blog posts we will repeatedly talk about Cold Air Penetration; this is where outside cold air finds a way to inter your home.  Let’s take a brief look at the Characteristics of Cold Air:

  • Cold air is more dense than warm air, it molecules are closely compacted together
  • Cold air will hold less moisture and it sinks downward
  • Cold air is heavier than warm air
  • The mass of cold air has a greater barometric pressure than warm air
  • Cold air does not cause you to catch a cold that comes from germs
  • Cold air contracts and as it contracts it becomes more dense and shrinks in size whereas warm air expands and rises.  (This one characteristic is so important.)  {warm air is rising and expanding in size and cold air is sinking and shrinking in size}
  • Cold air as it contracts will sink

The connection between cold air and its density is critical to understanding Cold Air Penetration of your home.

Let us know your thoughts.

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