How Much Insulation Does My Attic Need?

This video will cover how much insulation your home needs. We first cover what R-Value is because without understanding that you won’t understand how much insulation you need.
R-value is the capacity of an insulating material to resist heat flow. Depending on where you live will determine how much r-value you need to be at. Hotter climates require less r-value then colder because the need to retain heat inside the home is less. After you have found where you live on the map you now know the number r-value to reach for.
Each insulation when bought has the r-value listed in the packaging along with the thickness. You can stack insulation on top of each other adding their r-values together to achieve the overall r-value you’re looking for.
General Rule Of Thumb: If your insulation is not covering your ceiling joists you most likely don’t have enough insulation. Typically 11-12 inches of cellulose blown in insulation at an r-value of 3.5 per inch is enough in southern states.
00:00 Intro
00:24 What is r-value?
01:02 How much r-value do i need?
01:50 How many inches do i need?
02:38 Stacking insulation on top each other
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