Blown-in Insulation Overview

How Is It Installed?

For attic installs, we typically send a crew of two people. One insulation installer uses a blower hose to spray fluffed-up insulation over the floor and into cavities. The other installer controls the blower unit and feeds bags of insulation into the units hopper to keep the hoses flowing consistently. The workers will install a layer of insulation to the thickness required for the necessary R-value.

For existing walls, the installers usually, work on the exterior of the walls, however it can also be installed from inside the home. Typically two small holes are made into each wall cavity, then insulation is blown in until it fills the cavity.

​

​

Best Use And Application

Blown-in insulation is a very effective way to insulate an attic. It can also be blown in right over the existing insulation if its in good condition, so there is no mess and little disruption.

If you are doing a major renovation and want to add or improve insulation to your walls, blown-in is the easiest way to do it because you don't need to demo your existing walls or sheetrock.

​

Types Of Blown-in Insulation

There are a few different types of blown-in insulation, but the most common include:

​

Cellulose: This is made from recycled materials like newspapers, cardboard and wood fiber. It is treated with a fire retardant and mold resistant agent, however we no longer offer this type of insulation due to superior products now available on the market.

​

Fiberglass: Has been around for decades and is a common type of blown-in insulation. It is mostly made from recycled glass. Newer options are made from polyester a synthetic alternative to glass fibers that may perform better.

​

Rockwool: Is a newer option, but it's quickly gaining popularity. This type is made from volcanic basalt rock and recycled slag, a common by-product from the steel and copper industry.

​

How Long Does It Take To Install Blow In Insulation?

On average it should take two people one - two days day to complete, but it depends on several factors including the size of the home, type and amount of insulation used, and accessibility and condition of the home or building.

​

Life Expectancy For Blown In Insulation

It is difficult to determine the life expectancy of insulation because it depends on various factors including: type of installed, house conditions, environment, etc. Typically most insulation should last around 15-20 years, but it can be much longer.

​

Is It Dusty?

No, blown-in insulation is not dusty. In fact, the vast majority of it will fall straight to the floor and can easily be swept up afterwards. Any insulation that does end up on the floor or furnishings can be quickly removed with a vacuum cleaner or broom.

​

What If I Have Allergies?

Allergic reactions to blown-in insulation are very rare, but if you do experience any discomfort after installation, it's usually because of some house dust gets disturbed when the material is being blown in and should resolve on its own. We recommend opening windows and increasing ventilation after install. Additionally, there may be a small amount of off-gassing after the insulation has been installed - but this will dissipate within a few days and will not cause any long-term issues.

​

How Long Does It Take To Work?

Blown-in insulation works almost instantly, but it can take several months before you feel the full effect of its benefits. This is because over time and seasonal changes you will definitely notice an increase in comfort and that your energy bills have gone down.

​

Some Possible Cons Of Blown-In Attic Insulation

There are a few drawbacks that need to be considered.

• If it gets wet its almost impossible to dry and could cause a mold issue.

• The process of removing it is also difficult , and should be done by a professional.

• Blown-in attic insulation can also get heavy , so you need to make sure the attic floor can support the weight.

​

Costs Of Blown-In Attic Insulation

Blown-in attic insulation is a cost effective investment that will pay off in the long run. In fact, it could reduce your energy bill by up to 40% and can be used as a tax deduction depending on local or national regulations.

Depending on a number of factors, the type of insulation you choose, amount needed, ease of access, house type and condition all effect the cost of the project. Henderson Insulation Pros can walk through your home, and give you an accurate estimate. We are experts at determining the type of insulation that fits each project best, we also use only high quality products from trusted brands.