Blown-in cellulose insulation is a popular choice among homeowners due to its energy-efficient properties. However, like any other insulation, blown-in cellulose insulation has its pitfalls. Here are some disadvantages of blow-in cellulose insulation that you should be aware of:
In summary, while blown-in cellulose insulation can be effective in increasing home energy efficiency, the above pitfalls should be taken into account before making a decision on what type of insulation to use for your home.
The Pitfalls of Blown-In Insulation: Disadvantages of Blow-In Cellulose Insulation
Blowing cellulose insulation into the walls and attics of your home is one of the most effective ways to reduce heating and cooling costs and increase energy efficiency. However, despite its benefits, blow-in insulation also comes with several pitfalls that you should be aware of before deciding to install it in your home. In this article, we’ll take a closer look at the disadvantages of blow-in cellulose insulation and explore why it may not be the best option for your home.
Potential Compaction and Settling of Insulation
One of the main drawbacks of blow-in cellulose insulation is its ability to compact and settle over time. As the insulation settles, it can create gaps in the insulation, which can decrease its performance and lead to energy loss in your home. Additionally, compacted insulation can be difficult to repair or replace. Once it has settled, it can be nearly impossible to get it back to its original state. This is especially true for homes that are subject to vibrations or movement, such as those located near busy streets or train tracks.
Bullet point:
- Compacted insulation can be difficult to repair or replace
- Vibrations or movement can contribute to settling and compaction
Creation of Gaps on High Points
Another issue with blow-in cellulose insulation is that it can create gaps on high points, such as on the top of attic joists or between wall studs. This can occur when the insulation is blown in too quickly or is not packed in tightly. These gaps can lead to air leaks, which can increase energy costs and cause drafts in your home. In some cases, these gaps may not be visible, making it difficult to determine whether they are present.
Bullet point:
- Blowing insulation too quickly can create gaps on high points
- Visible gaps can lead to air leaks and energy loss
Decreased Efficiency of Insulation
As cellulose insulation settles and compacts, its R-value, or its ability to resist heat flow, can decrease. This means that the insulation will become less efficient over time and will not provide the same energy-saving benefits that it did when it was first installed. In some cases, this decrease in efficiency can be significant, especially if the insulation is not properly installed or if it is subject to movement or vibration.
Bullet point:
- Cellulose insulation can lose efficiency over time due to settling and compaction
- Decreased efficiency can lead to higher energy costs and lower comfort levels
Cellulose’s Ability to Resorb into any Shape or Size
Blow-in cellulose insulation is made from recycled newspaper that has been treated with fire retardants and other chemicals to make it flame-resistant. While this makes it an effective insulator, it also means that the insulation has the ability to resorb into any shape or size. This can make it difficult to detect gaps or areas that need to be repaired or replaced. Additionally, it can make it difficult to install the insulation properly, as it may not conform to the shape of the area it is being blown into.
Bullet point:
- Cellulose insulation’s ability to resorb into any shape can make it difficult to install and inspect
- Areas that need repair or replacement may be difficult to detect
Possibility of Air Leaks with Blow-In Insulation
While blow-in cellulose insulation is an effective insulator, it can also contribute to air leaks if it is not installed properly. This can cause drafts and energy loss, which can increase your heating and cooling costs and decrease your comfort levels. Additionally, air leaks can allow moisture to enter your home, which can cause damage to your walls, floors, and other areas. It’s important to work with a professional installer who has experience with blow-in cellulose insulation to ensure that it is installed properly and that air leaks are minimized.
Bullet point:
- Poor installation can lead to air leaks and energy loss
- Air leaks can allow moisture to enter your home, leading to structural damage and health problems
Increased Susceptibility to Moisture Damage
Cellulose insulation, like any other type of insulation, can be susceptible to moisture damage if it is exposed to water or high humidity levels. While it is treated with fire retardants and other chemicals to make it flame-resistant, these treatments do not make it waterproof. If moisture enters your walls or attic, it can cause the insulation to clump together, grow mold, or deteriorate. This can lead to structural damage and health problems if not addressed quickly.
Bullet point:
- Moisture can damage and deteriorate cellulose insulation
- Moisture can also lead to mold growth and health problems
Difficulty in Locating and Repairing Damaged Areas
Finally, one of the biggest disadvantages of blow-in cellulose insulation is the difficulty involved in locating and repairing damaged areas. Because the insulation is blown in and conforms to any shape or size, it can be difficult to determine where leaks or other problems may be occurring. Additionally, once the insulation has settled or compacted, repairing or replacing it can be time-consuming and expensive. This can lead to higher repair costs and longer downtime for your home, which can be frustrating and inconvenient.
Bullet point:
- Cellulose insulation can be difficult to repair or replace once it has settled or compacted
- Finding areas that need repair or replacement can be challenging
In Conclusion
While blow-in cellulose insulation is an effective way to reduce heating and cooling costs and increase energy efficiency, it also comes with several pitfalls that should be taken into consideration before it is installed. From potential compaction and settling to increased susceptibility to moisture damage, blow-in cellulose insulation may not be the best option for every home. If you are considering this type of insulation for your home, be sure to work with a professional installer who has experience with it, and be prepared to address any potential issues as they arise.
