Can you mix attic insulation without running into problems? This strategy can give you effective, affordable insulation—if you take some precautions first.
It’s no secret that attic insulation is a must for homeowners. But if you’re thinking about working on attic insulation installation to improve the insulation you have in this space, you may be wondering: can you mix attic insulation types?
While mixing different varieties of attic insulation can deliver serious benefits, it isn’t a perfect solution by any means. Still, if you can avoid the risks associated with using different insulation types, you may be able to enjoy higher R-values at a reduced price with this strategy.
Reviewing the Basics of Attic Insulation
Before we get into the advantages and disadvantages of mixing attic insulation types, it’s in your best interest to understand why insulation matters in the first place. Attic insulation can deliver some major benefits for the average home, including:
- Better temperature control in your house. If your attic doesn’t have insulation (or doesn’t have the amount of insulation it needs), rooms on the upper level of your home could have unstable temperatures.
- Lower utility costs. Information from the United States Environmental Protection Agency suggests that installing insulation and air-sealing your home can lower your cooling and heating expenses by approximately 15%.
- Limited noise pollution. Although its primary job is to stop the flow of heat, attic insulation can also reduce the severity of outside noise inside your house.
- Enhanced indoor air quality. Additionally, your attic insulation can prevent outdoor pollutants from entering your home, protecting its air quality.
- The Benefits of Mixing Insulation Types
When you know how and when to use multiple insulation types in your attic, you’ll be able to enjoy several advantages as a direct result. Some of the most noteworthy perks associated with using more than one attic insulation type include:
Better R-Values
R-values are measurements of insulation’s ability to resist heat flow. The higher your insulation’s R-value is, the less trouble it will have keeping your home comfortable.
By installing multiple insulation types in the same space, you can enjoy a higher R-value than any one of these materials could deliver on its own. For example, you could install blown-in cellulose insulation over fiberglass batts, providing both a strong base layer and additional insulation material.
Cut Costs by Adding to Your Existing Attic Insulation
Even if your attic already has insulation, there’s a good chance it doesn’t have enough of this material in place. The North American Insulation Manufacturers Association has stated that 89% of single-family homes in America are under-insulated.
However, that doesn’t mean you need to remove your existing insulation material and start from scratch. If your current attic insulation is dry, clean, and otherwise in good condition, adding more insulation material can help you get the R-value you need at a fraction of the cost you’d otherwise pay.
Improved Fire Safety
Some insulation types are naturally resistant to fire. When you use fire-resistant insulation materials like mineral wool alongside traditional insulation, you’ll get an effective barrier in the event of a fire in your attic.
Reduced Air Leaks
Though air leaks can be easy to overlook, they can have a much bigger effect on energy loss in your home than you might expect. Fortunately, mixing insulation types can help you cut down on these leaks. Spray foam insulation is particularly effective in this situation, as it can create an airtight seal in your attic.
Be Aware of Attic Insulation Risks
While mixing and matching insulation types can certainly come with benefits, you should also understand the risks involved, including the possibility of trapped moisture. That situation can cause serious problems, including mold growth and structural damage to your attic. As a result, you’ll need to take steps to prevent this issue during insulation installation.
If you plan to layer insulation in your attic, a vapor barrier can keep moisture at bay. Making sure you have proper attic ventilation can also give trapped moisture an opportunity to escape.
Moisture aside, you’ll also have to avoid installing too much insulation in your attic. While the added R-values delivered by multiple insulation layers can be helpful to an extent, going overboard could significantly reduce attic airflow. To prevent this from becoming a problem, be sure to do your research and find the recommended R-value for homes in your area.
Why Should You Hire Professional Insulation Installers?
Although some homeowners attempt to install insulation on their own, this approach can come with unintended consequences. When you handle insulation installation as a DIY job, you could accidentally over-insulate your attic, keep using insulation that should be removed, and even increase your risk of serious health problems.
On the other hand, hiring insulation experts will give you a chance to work with people who:
- Know how much insulation your attic needs. Local insulation professionals have a ton of experience when it comes to insulating attics in your area. Because of that, they’ll have no trouble determining what amount of insulation is right for your attic.
- Will understand your insulation’s condition. Though older insulation can often be salvaged, this is far from a guarantee. Professional insulation installers will look at your existing insulation and determine whether or not you can use it with your new insulation material.
- Are able to deal with insulation safely. Some types of insulation (especially asbestos insulation) can put your health at risk when handled carelessly. Fortunately, insulation experts can identify these hazardous insulation varieties and safely remove them for you.
- Can help you find the right insulation mix. There are many different types of insulation out there, and each of these materials has its own pros and cons. The members of your attic insulation crew will be able to choose the best combination of insulation materials for your needs.
- Won’t overcharge you for their services. Many homeowners hesitate to go the professional route for insulation installation due to the costs involved. However, a reputable team will help you get the best possible insulation solution at a truly reasonable price.
Get Help Mixing Attic Insulation Types for Your Home
So, can you mix attic insulation? If you know what you’re doing, that shouldn’t be a problem…but you’ll still need to look out for some risks along the way.
Because of that, you should trust the pros at Attic Projects to tackle this work (and any other insulation services you might need). Take the first step by getting in touch today!