Adding Insulation Over Old Attic Insulation

Many homeowners in Southern California are interested in adding insulation to their attic in order to improve the energy efficiency of their home. One question that we often get asked is whether it is possible to add blown-in insulation over existing insulation that is already in place.

The answer to this question is yes, you can add blown-in insulation over existing insulation in an attic. However, there are a few things that you need to keep in mind if you are going to do this. First of all, you need to make sure that the existing insulation is in good condition and is not damaged or wet. If the existing insulation is in poor condition, it will need to be removed before new insulation can be added.

Another thing to keep in mind is that the new layer of blown-in insulation will need to be thick enough to provide the desired level of energy efficiency. In most cases, an additional layer of blown-in insulation will need to be added on top of the existing layer in order to achieve the desired R-value.

Finally, it is important to make sure that the new layer of blown-in insulation is properly installed in order to achieve the desired level of energy efficiency. If you are not comfortable doing this yourself, we recommend hiring a professional insulation contractor who has experience installing blown-in insulation.

attic before and after blown in insulation installed over exisitng material.
Before and after blown-in attic insulation installation.

Why Add Blown-In Insulation?

There are several reasons why you might want to add blown-in insulation to your attic. First of all, it can help improve the energy efficiency of your home by keeping heat from escaping through the attic during the winter and keeping your home cooler during the summer.

Adding blown-in insulation can also help reduce noise from outside sources like traffic or neighbors. And finally, adding blown-in insulation can help improve the resale value of your home by making it more energy efficient.

How Much Does It Cost?

It doesn’t cost; it saves in the long term. However, the investment of adding blown-in insulation to an attic varies depending on several factors, including the size of the attic, the R-value of the insulation, and whether you hire a professional contractor or do it yourself. 

In general, you can expect to pay between $1 and $2 per square foot for material costs when adding blown-in insulation to an attic. If you hire a professional contractor, you can expect to pay between $0.50 and $1 per square foot for labor costs.

Get our Attic Insulation Price Sheet

Get Your "Price Sheet" with Bonus "Energy Saving Sheet".
Use the "Price Sheet" as a guide to get a ballpark estimate on insulating your attic. There is also a bonus so you can see how much attic insulation will save you on your energy bill.
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10 being the most comfortable.
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10 being very high.
installing blown in insulation over exisitng attic insulation.
installing blown in insulation over exisitng attic insulation.

Conclusion

Adding blown-in insulation is a great way to improve the energy efficiency of your home and reduce noise from outside sources. It is also an effective way to improve the resale value of your home by making it more energy efficient. The cost of adding blown-in insulation varies depending on a number factors. 

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Whether it is a residential or commercial property, whatever your insulation needs are, Blown - In Insulation is the insulation contractor you want! Contact Brad today for more information on our services, and don’t forget to ask for your free quote! Phone: (626) 696-6042 ‍ Service Area: Southern California