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Cellulose Insulation Manufacturers Association

Adding Insulation When Re-Siding Adds Home Value

A high percentage of homes in the U.S. have siding and of those vinyl continues to be the most common choice. Data from the Census Bureau’s Survey of Construction (SOC), shows vinyl (including vinyl-covered aluminum) was the most common exterior wall material used in homes started in 2013 (31 percent.) It can be found on a high percentage of older existing homes as well, particularly those built in the 1960s through 80s. In many cases, siding on those homes is now in need of replacement. Just as likely, many may also be in need of insulation upgrades.

The National Association of Realtors has monitored annual reports from the remodeling Cost vs Value studies and recapped trends on their Houselogic website. Updating siding on a home is estimated to have one of the highest returns on investment (ROI) of any remodeling project.  According to the website:

“No other feature has as much impact on curb appeal as siding. Clean, well-cared-for siding signals home improvement mastery. Old, worn siding can contribute to a loss of up to 10% of your home’s value.”

Homeowners considering a replacement of older siding should also plan on upgrading their insulation. Adding insulation offers high ROI for home energy improvements. Noted Washington Post columnist Katherine Salant covered this in her House Watch column: To boost resale value, consider the quality of your insulation. Cellulose insulation is the ideal product for retrofitting insulation in the exterior walls of older homes. It can be blown in through the exterior walls thus avoiding the need for disruptive demolition inside the home. The process is even easier while the old siding is being removed. Cellulose provides excellent insulating properties and is also one of the most Eco-friendly building materials with up to 85% recycled content in the form of waste paper.

Upgrading old siding with today’s improved vinyl products, and replacing outdated cavity wall insulation with blown-in cellulose, provides homeowners the one-two combination for a knockout punch that will lower energy costs for years to come and provide higher resale value when it’s time to sell their homes.

2016-02-26 17:03:37
Nash Rich says:

I can see how better insulation can save energy bills, especially in the winter. I honestly don't know how much insulation I have, I should probably look into that. It's an extra nice perk that adding insulation also adds to the homes value. Thanks for the info!

2017-12-30 04:39:04
Patrick Williams says:

I had a house once that I had cellulose blown in by "Professionals" at the time I didnt think to check the work, at a later date I did make my own check of the work due to personal reasons. I found that there were voids where the insulation had not been properly filled in the cavities. My estimation is about 25% not related to settling which they say is typically 10%...

After moving to Spokane and experiencing my first winter, I insulated with cellulose during the spring and did the work myself. The big box store blower are useless for this application, they work great in theory for attics but that is it.

I used several of the big box store machines all of them were deficient and were in obvious need of repair ie. Broken blower air hose under the machine, faulty hoses that clogged up during the work, but worst of all regular maintenance and verifying that the said machines were going to be problem free and in good condition prior to renting or turning them over to the customer.

Since I was blowing the insulation into my walls I ended up using with good success a leaf blower to install my insulation. The results were a bit better however there were still voids that I am currently doing by hand from the inside at this time.

Once in the wall Im compressing it with a homemade tool to pack it in the cavity.

The results finally are to my satisfaction the interior air temp is 70 degrees, the wall temperature on the interior surface is 68 degrees. Time consuming but I know at least it has been correctly...

2018-01-22 09:25:41
CIMA Admin says:

The issue of settling is discussed in this article here on the blog Glad to hear you were satisfied with your DIY install. However, CIMA recommends using a contractor experienced with installing cellulose insulation for all applications and particularly in walls and retrofits. We offer information about hiring a contractor on the website Also, a search feature to find cellulose insulation producer for every state who may also be able to provide recommendations for qualified insulation contractors