Benefits Of Blown In Insulation

The Benefits of Blown-In Insulation: Why HVAC Professionals Swear By It

August 25, 2023


Effective insulation installation in your home is important beyond mere comfort—it is a matter of energy efficiency and cost savings.


Proper insulation works as a barrier, preventing the flow of heat and helping to maintain a consistent temperature throughout your home. In harsh Boston winters, insulation keeps the warmth in, and during the summer, it keeps the heat out. 


This leads to a significant decrease in the demand for heating and cooling, which not only reduces energy consumption but also decreases your utility bills. Optimal insulation also contributes to the longevity of your HVAC systems by reducing their workload. 


In the Massachusetts area, where temperature fluctuations are commonplace year-round, blown-in insulation installation by professional HVAC companies positively impacts homeowners’ comfort, energy savings, and the environment.


The Science of Blown-In Insulation: How It Works


Blown-in insulation, often composed of cellulose, fiberglass, or mineral wool, is a highly effective insulation method due to its unique physical properties and the manner of its installation. The loose-fill nature of these materials allows them to be blown into cavities and hard-to-reach areas of a structure, ensuring a comprehensive coverage that traditional insulation methods may fail to achieve. 


When installed by a skilled HVAC professional, the materials fill the spaces around pipes, wires, and other obstacles, creating a monolithic thermal blanket that significantly reduces heat transfer. The small particles of the insulation material trap pockets of air, and it's the air trapped within and between these particles that provides the insulation effect. The irregular shape of the particles, especially in cellulose insulation, further prevents air movement within the insulation, thus enhancing its insulating capacity.


Why You Should Consider Using Blown-In Insulation In Your Home


Blown-in insulation offers several advantages over traditional methods of insulation. First and foremost, it provides superior energy efficiency. Its ability to fill tiny gaps and crevices drastically reduces air infiltration, leading to a more consistent indoor temperature and less strain on your HVAC systems. This translates directly into substantial energy savings for homeowners.


The installation process of blown-in insulation is fast, efficient, and less disruptive to your home. Professional installers use specialized equipment to blow the insulation into the desired areas. This means fewer construction hassles, and in most cases, the installation can be completed within a few hours depending on the size of the space.


Blown-in insulation is also environmentally friendly. Many of the materials used, such as cellulose, are made from recycled content, which contributes positively to the conservation of natural resources. In addition, by improving the energy efficiency of your home, blown-in insulation helps to reduce your carbon footprint.


Lastly, blown-in insulation provides a higher R-value (a measure of thermal resistance) per inch compared to traditional insulation materials. This means it provides superior resistance to heat flow, ensuring optimal insulation performance.

Choosing to install blown-in insulation in your home is a wise investment in comfort, energy efficiency, and environmental sustainability.


Blown-In Insulation vs. Traditional Insulation:


When evaluating insulation options, it's crucial to understand the differences between blown-in insulation and traditional materials such as batts or rolls. Traditional insulation materials are often pre-cut into panels and are manually fitted into space. While this method can be effective in certain situations, it often leaves gaps and voids, leading to less efficient insulation.


On the other hand, blown-in insulation is a loose-fill material that is blown into place, filling every crevice and corner, and providing a more thorough coverage. This method is particularly effective in covering irregular or hard-to-reach areas where traditional insulation may fall short, for example when insulating an attic.


Additionally, the installation process for traditional insulation can be more time-consuming and labor-intensive compared to blown-in insulation, which can be installed quickly and efficiently by professional HVAC companies.

From an environmental perspective, blown-in insulation often uses recycled materials, making it a more sustainable choice. Furthermore, the superior thermal resistance offered by blown-in insulation can lead to greater energy savings, making it an economically sound choice for homeowners in Massachusetts.


While both insulation types have their merits, blown-in insulation provides a comprehensive, efficient, and eco-friendly solution to your insulation needs.


Common Misconceptions About Blown-In Insulation


There are several misconceptions about blown-in insulation that homeowners should be aware of:


Blown-in insulation is too expensive": 

While the initial cost may be higher than traditional insulation, the energy savings over time often outweighs the upfront cost. In fact, Mass Save® currently offers insulation rebates up to 100% of the installation costs in Massachusetts which can greatly offset the initial investment.


"It is not as effective as traditional insulation": 

Contrary to this belief, blown-in insulation fills in gaps and small spaces that traditional batt or roll insulation may miss. This more effective coverage results in a more energy-efficient home.


"The installation process is messy and disruptive": 

Professional HVAC companies use specialized machines to blow in the insulation, ensuring a clean and efficient process. Typically, the process can be completed in a few hours with minimal disruption to your home.


"Blown-in insulation is harmful to the environment": 

Many types of blown-in insulation are made of recycled materials, making it an environmentally friendly choice. Furthermore, by reducing your home's energy consumption, you are also reducing your carbon footprint.


"It's only suitable for new houses": 

Blown-in insulation can be used in both new and older homes. It's particularly useful for upgrading insulation in older homes, as it can be installed without needing to remove existing structures.


Is Blown-In Insulation Right for My Home?


Deciding whether blown-in insulation is right for your home depends on various factors. If your home has hard-to-reach corners, crevices, and cavities, or irregular shapes in its structure, blown-in insulation is an excellent option due to its ability to provide comprehensive coverage. If your home experiences inconsistent indoor temperatures, drafts, or high energy bills, these might be signs of insufficient insulation where blown-in insulation could be a beneficial solution.


This type of insulation is also ideal for older homes in the Boston area which may have less efficient traditional insulation. The installation process for blown-in insulation is less disruptive and can often be completed without removing existing structures, making it a practical choice for both new and older homes.


Blown-in insulation is a highly versatile solution suitable for a broad range of homes. However, it's always recommended to consult with a professional insulation contractor , such as Home Mechanics, to evaluate your home's specific needs and ensure optimal insulation installation.


Professional Installation: Choosing the Right HVAC Company in Massachusetts


When considering blown-in insulation for your home, selecting the right HVAC company is essential to ensure the job is done correctly and efficiently.


When evaluating potential HVAC companies, you should prioritize those that have extensive experience with insulation installation, specifically blown-in insulation. A company with a proven track record in this area will be able to handle any complexities that may arise during the insulation process, ensuring that every area is adequately covered.


Additionally, look for companies that offer comprehensive services, from consultation and assessment to installation and post-installation support. This all-encompassing approach guarantees that you'll receive professional advice tailored to your home's specific needs and ongoing assistance to maintain the efficiency of your insulation over time.


Ensure the HVAC company you choose is licensed and insured in Massachusetts, provides you with peace of mind, and also ensures that you will be able to qualify for Mass Save® insulation installation rebates.


Home Mechanics offers free estimates, so contact us today if you have any questions!



Mass Save® Rebates for Energy-Efficient Homes

In Massachusetts, Mass Save’s Home Energy Services Program offers a variety of rebates and incentives to help homeowners save money on energy costs. By taking advantage of these rebates, homeowners can save up to 100% on the cost of Mass Save insulation installation. This is especially beneficial for attics and crawl spaces, where poor insulation can lead to higher energy bills. To learn more about the insulation rebates and incentives available, click here.


Frequently Asked Questions About Blown-In Insulation


What happens if blown-in insulation gets wet?

When blown-in insulation gets wet, it loses its effectiveness due to sagging and settling, especially in wall cavities. Wetness can also lead to mold and wood decay if left untreated. In some cases, the insulation might need to be replaced entirely.


How long does blown-in insulation last?

The lifespan of blown-in insulation can vary depending on factors like the type of material used and the conditions in your home. However, it typically lasts between 20 to 30 years.


How do you remove blown-in insulation?

Removing blown-in insulation is a job best left to professionals due to the potential for exposure to harmful substances. If doing it yourself, it's essential to wear protective clothing and use a specialized vacuum to remove the insulation safely.


How can I walk in an attic with blown-in insulation?

Walking in an attic with blown-in insulation requires caution to avoid damaging the insulation or the ceiling below. It's best to walk on the joists, using a plank of wood to distribute your weight evenly if possible.


Is blown-in insulation safe?

Yes, blown-in insulation is safe when installed correctly. However, improper installation can lead to issues such as moisture buildup and reduced effectiveness.


Does blown-in insulation have asbestos?

Modern blown-in insulation does not contain asbestos. However, if your home was built before the 1980s and the insulation has never been replaced, there may be a risk of asbestos.


Does blown-in insulation need a vapor barrier? 

The need for a vapor barrier with blown-in insulation, especially cellulose insulation, is not always necessary. It's generally not recommended except in high-humidity areas such as rooms with indoor pools and spas. However, the necessity can also depend on the local climate and building codes. Always consult a professional to make an informed decision


How deep should blown-in insulation be?

The depth of blown-in insulation depends on the climate and the type of insulation used. However, a common recommendation is to aim for a depth that achieves an R-value of 38, which is about 10 to 14 inches for most types of blown-in insulation.


What does blown-in insulation look like?

Blown-in insulation often looks like a layer of fluffy material spread across the attic floor. It can be made from various materials, including cellulose, fiberglass, and mineral wool, each with a slightly different appearance.

FAQ / Tips


Whether you require simply deplete cleaning or a whole pipes registration.

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Why call Home Mechanics?

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Whether you require simply deplete cleaning or a whole pipes registration.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate.

Whether you require simply deplete cleaning or a whole pipes registration.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate.

Whether you require simply deplete cleaning or a whole pipes registration.

Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate.