A Guide to the R Value in Insulation

The R rating of insulation is one of the most important ratings it has. It tells you how resistant it is to the flow of heat. Basically, insulation with a high R rating performs better. It may be tempting to purchase your insulation based on weight, thickness or price, but you should base it fully on its R rating.

Attic Insulation

Understanding the R Rating

A lot of people think that thicker insulation is better insulation. However, this is not necessarily true. All insulation is tested at 70 degrees Fahrenheit in an environment without movement of air. This is not a condition that you will find in an average home. As such, the R rating you actually get may even be greater than the one that is listed.

When it comes to home Mesa insulation, installers tend to recommend R12 for basement insulation. If you have any moisture, water or air leakage in your home, the R rating will be greatly reduced. However, another important factor to understand is what the temperature and climate is where you live. Different insulations exist for different environments and each of these has a different R value.

It is very important to have an R value that is as high as possible if you want to make your house more energy efficient. One of the most important things to take into consideration as well is water. As the R value is lowered if the insulation is exposed to water, you may want to fix any water problems first or opt for an even higher R value. Alternatively, you could add something such as Superseal to your insulation to protect it from water.

How to Install Insulation

The wood framing in your home means that around 11% of your property is not insulated properly. However, all homes will have wall studs. You need to make sure that you have insulation diagrams of your property that show these studs before you start. Wood also has an R value and this create a thermal bridge. In areas where wood and sheetrock meet, a cold area can be created in the insulation itself.

When there is a cold spot, the insulation will be less effective across the entire wall, not just around the cold spot. Additionally, these spots can lead to moisture and condensation. This can cause significant problems overall.

If done properly, using insulation can greatly improve the energy efficiency of your home. However, because it is all too easy to do it wrong, mainly when it is done on a DIY project, it is better to speak to a professional about properly insulating your home. They will also have greater knowledge of the fabric and construction of your property and what this means for the type of insulation you need. Furthermore, they will be able to fully explain the R ratings of the different types of insulation and ensure you are able to make an informed decision in terms of which one is best for you.


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