BFS Calculator: Estimate Blown-In Fiberglass Insulation Costs & Savings

Blown-In Fiberglass Insulation: Background and Performance Metrics

Ever wonder why some homes stay cozy in winter while others hemorrhage heat and money? The secret often hides behind your walls and above your ceilings.

Insulation is the unsung hero of modern buildings. It quietly works to maintain your comfort, slash your energy bills, and improve your building's overall performance by creating a thermal barrier between you and the elements.

Among the various insulation materials vying for your attention, blown-in fiberglass (BFS) insulation stands out as a particularly versatile solution. But what makes it so popular for both homes and commercial buildings?

This guide unpacks everything you need to know about BFS insulation. Think of it as your roadmap for interpreting results from our BFS calculator and making smart decisions about your insulation projects.

What exactly is blown-in fiberglass? Where does it work best? How much heat will it actually block?

We'll answer these questions and more, covering everything from thermal performance (the all-important R-value) to installation costs, potential energy savings, lifespan considerations, and the industry standards governing its use.

By the time you finish reading, you'll understand why so many contractors and homeowners reach for the blower when it's time to insulate. Let's dive in.

Defining Blown-In Fiberglass Insulation and Its Applications

Definition of BFS Insulation

What exactly happens when we "blow in" fiberglass insulation?

flowchart TD
    BFS[Blown-In Fiberglass Insulation]
    BFS --> Residential[Residential Applications]
    BFS --> Commercial[Commercial Applications]
    BFS --> Advantages[Key Advantages]
    
    Residential --> Attics["Attics
    • Easy access
    • Significant heat transfer reduction
    • Straightforward installation"]
    
    Residential --> Walls["Walls
    • New: Install before closing
    • Retrofit: Small access holes
    • Minimizes air infiltration"]
    
    Residential --> Floors["Floors
    • Above unconditioned spaces
    • Improves comfort
    • Reduces heat loss"]
    
    Residential --> HardToReach["Hard-to-Reach Areas
    • Irregular shapes
    • Around obstacles
    • Complete thermal coverage"]
    
    Commercial --> ComAttics["Commercial Attics
    • Larger open spaces
    • Energy efficiency improvements"]
    
    Commercial --> ComWalls["Commercial Walls
    • Complex cavity spaces
    • Adaptable to various structures"]
    
    Commercial --> SoundDampening["Sound Dampening
    • Noise control benefits
    • Better acoustics"]
    
    Advantages --> Cost["Cost-Effectiveness
    • Lower cost vs. spray foam
    • Budget-friendly"]
    
    Advantages --> Installation["Simple Installation
    • No structural modifications
    • Retrofit-friendly"]
    
    Advantages --> Coverage["Comprehensive Coverage
    • Fills gaps and cracks
    • Minimizes air leakage"]
    
    Advantages --> Environmental["Environmental Benefits
    • Recycled glass content
    • Aligns with green building"]

Blown-in fiberglass (or loose-fill insulation) consists of millions of fine, interconnected glass fibers that start their journey as melted glass. Manufacturers spin or blow this molten glass into thin strands, creating a fluffy material that traps air in countless tiny pockets.

Unlike those stiff pink batts you might picture, BFS doesn't come pre-formed. Instead, specialized equipment propels these loose fibers through a hose into building cavities and across open spaces like attic floors.

This installation method gives BFS its superpower: conformability. The material molds itself to whatever space you're filling, whether it's an irregular corner or around pipes and wiring.

Once settled, BFS creates a non-uniform layer ranging from loose piles to more consistent, blanket-like coverage. And here's an eco-friendly bonus: fiberglass insulation often incorporates recycled glass, giving those bottles a meaningful second life as your home's thermal barrier.

Typical Applications in Residential Buildings

Where does blown-in fiberglass really shine in your home?

Attics are the prime real estate for BFS. They're easily accessible, and since heat loves escaping through your roof (especially in winter), insulating this area delivers substantial energy savings. The process is straightforward: the insulation is blown across the attic floor, creating a thermal blanket that significantly reduces heat transfer.

What about those walls? BFS has you covered there too. In new construction, it's installed before the wall cavities are closed up. For existing homes, small holes are drilled between studs, the insulation is blown in, and then those holes are patched. The ability of BFS to completely fill these cavities helps minimize pesky air infiltration.

Floors situated above unconditioned spaces like crawl spaces or basements also benefit from BFS treatment. This application improves comfort and reduces heat loss into those colder areas.

One of BFS's most valuable traits is its ability to navigate hard-to-reach areas and irregular shapes. Unlike rigid insulation, it fills gaps and spaces around obstacles like wiring, plumbing, and ductwork, ensuring more complete thermal coverage.

Typical Applications in Commercial Buildings

Does BFS work beyond residential settings? Absolutely.

Commercial buildings benefit from similar applications – attics, walls, and floors all make excellent candidates for BFS insulation. The adaptability of the material makes it particularly well-suited for the larger and more complex cavity spaces often found in commercial structures.

Beyond thermal performance, commercial spaces often appreciate another benefit of fiberglass: sound dampening. In offices, retail spaces, and other settings where noise control matters, BFS can help create a quieter environment.

Advantages of BFS Insulation

Why do so many contractors and homeowners choose blown-in fiberglass?

Cost-effectiveness tops the list. Compared to spray foam or rigid foam boards, BFS delivers solid performance without breaking the bank – making it attractive for budget-conscious projects.

Installation simplicity is another major selling point. In existing buildings, BFS can be applied without structural modifications, making it ideal for retrofitting and energy upgrades.

Perhaps its most significant advantage is comprehensive coverage. BFS excels at filling gaps, cracks, and irregularly shaped spaces more effectively than many other insulation types. This minimizes air leakage and improves overall thermal performance.

The environmental angle can't be overlooked either. With recycled content options available, BFS aligns well with green building practices.

Plus, BFS plays well with others – it can often be installed over existing insulation, simplifying the process of increasing insulation levels in older buildings.

Insights and Implications

What does all this versatility mean for you?

The wide-ranging applications of BFS across both homes and commercial buildings highlight its adaptability to diverse needs and climates. Whether you're insulating an attic in Minnesota or walls in Arizona, BFS can handle the job.

For homeowners and building owners, the relative ease of installation translates to something valuable: less disruption. You can enhance energy efficiency without major renovations, reducing both labor costs and inconvenience.

The gap-filling ability of BFS contributes significantly to air sealing – a critical factor often overlooked in insulation projects. By minimizing air infiltration, BFS creates a tighter building envelope, which leads to more substantial energy savings, improved indoor air quality, and enhanced comfort.

When considering your insulation options, these practical benefits make BFS worth a serious look.

Thermal Performance: The R-Value of BFS Insulation

Understanding R-Value

Ever wonder how we measure an insulation material's effectiveness? Enter the R-value – the single most important number in the insulation world.

pie
    title ......R-Value Range Distribution for BFS Insulation
    "R-2.2 to R-2.7 (Standard Density)" : 35
    "R-2.8 to R-3.3 (Medium Density)" : 25
    "R-3.4 to R-3.9 (High Density)" : 30
    "R-4.0 to R-4.3 (Premium Density)" : 10

The R-value measures a material's resistance to heat flow. Think of it as your insulation's power rating – the higher the number, the better it blocks heat transfer. The "R" literally stands for "resistance" to heat flow.

This value is typically expressed per inch of thickness, giving us a standardized way to compare different insulation types. When someone mentions an insulation with "R-3 per inch," they're telling you that one inch of this material provides a thermal resistance of 3.

Simple math applies here: if you install 5 inches of an R-3 insulation, you'll achieve a total R-value of 15. More inches means more thermal resistance.

Standard R-Value per Inch for BFS Insulation

So what R-value can you expect from blown-in fiberglass?

The typical range falls between R-2.2 and R-4.3 per inch. This variation isn't random – it reflects differences in density, manufacturing processes, and specific product formulations.

The Department of Energy (DOE) doesn't specify a single R-value for BFS, but their climate zone recommendations implicitly acknowledge its effectiveness. Their guidelines suggest different total R-values for attics, walls, and floors depending on your location.

To put this in practical terms: if you need to achieve R-38 in your attic (common in many climate zones), you'd need between 9-17 inches of blown fiberglass, depending on the specific product you use.

The North American Insulation Manufacturers Association (NAIMA) offers R-value certification programs for fiberglass products, providing additional verification of performance claims. Their data often shows ranges like R-12 to R-14 for 2×4 walls and R-19 to R-24 for 2×6 walls when filled with blown fiberglass.

Different sources report slightly varying ranges:

• Energy & Environmental Building Alliance: R-2.2 to R-2.7
• Koala Insulation: R-3.2 to R-4.0
• EcoStar Insulation: R-2.2 to R-4.3 (attic), R-3.7 to R-4.3 (walls)
• Superior Attic: R-2.2 to R-4.3

This variation reflects an important point: the R-value achieved in a specific installation depends not just on the material itself but also on installation factors.

Factors Influencing the R-Value of BFS Insulation

What affects the actual R-value you'll get with blown-in fiberglass?

Density matters significantly. When those fiberglass fibers pack together more tightly, they create more trapped air pockets – the secret behind insulation's effectiveness. Generally, higher density leads to a greater R-value.

The thickness of the individual fiberglass fibers also plays a role. Thicker fibers can create larger air pockets, potentially improving thermal resistance.

Installation quality is absolutely critical. Gaps, compression, or voids will compromise performance. This is why professional installation often delivers better results – the technicians know exactly how to achieve the proper density without creating problematic compaction.

Moisture is the enemy of effective insulation. When fiberglass gets wet, water displaces the insulating air within the fibers, dramatically reducing its thermal performance. This highlights the importance of proper moisture management in buildings.

Over time, BFS may experience some settling due to gravity, which can reduce thickness and therefore lower the R-value. Different products have different settling rates, which manufacturers typically account for in their coverage recommendations.

While generally stable, extreme temperature fluctuations can have minor impacts on insulation effectiveness.

Air infiltration – the uncontrolled movement of air through or around insulation – can bypass its thermal resistance. This is why air sealing is often recommended alongside insulation projects.

Finally, manufacturing quality affects the inherent R-value of different BFS products. Premium options may offer better performance than budget alternatives.

Insights and Implications

What does this R-value information mean for your insulation projects?

The range of R-values reported from various sources suggests you should always check the specific product information from your chosen manufacturer. This precision allows for more accurate calculations when using our insulation calculator.

The significant impact of installation quality underscores why proper technique matters so much. DIY installation might save money upfront, but professional installers with proper equipment and experience will likely achieve better performance and long-term energy savings.

The negative impact of moisture highlights the importance of addressing any leaks, ventilation issues, or humidity problems before installing insulation. Proper moisture management throughout your building will help maintain the insulation's effectiveness over decades.

Typical R-Value per Inch for Blown-In Fiberglass Insulation (Reported Ranges)

Installation Costs of Blown-In Fiberglass Insulation

Typical Cost Ranges per Square Foot

How much should you budget for blown-in fiberglass insulation?

flowchart TD
    TotalCost[Total Installation Cost]
    
    TotalCost --> Materials["Material Costs
    $0.30-$1.50 per sq. ft."]
    
    TotalCost --> Labor["Labor Costs
    Varies by location & complexity"]
    
    TotalCost --> Equipment["Equipment 
    Blower rental if DIY"]
    
    Materials --> MaterialFactors["Influencing Factors:
    • Product density
    • R-value requirements
    • Brand/manufacturer"]
    
    Labor --> LaborFactors["Influencing Factors:
    • Geographic location
    • Installation complexity
    • Building access
    • Contractor overhead"]
    
    TotalCost --> LocationType["Location Type"]
    
    LocationType --> Attic["Attic Installation
    $0.90-$3.60 per sq. ft."]
    
    LocationType --> Wall["Wall Installation
    $1.10-$3.70 per sq. ft."]
    
    LocationType --> Floor["Floor Installation
    $0.80-$3.20 per sq. ft."]
    
    TotalCost --> AdditionalFactors["Additional Factors"]
    
    AdditionalFactors --> Removal["Removal of Old Insulation
    Additional $1-$2 per sq. ft."]
    
    AdditionalFactors --> AirSealing["Air Sealing
    Additional $0.30-$0.75 per sq. ft."]
    
    AdditionalFactors --> Accessibility["Accessibility Issues
    Increases labor costs"]

The installed cost typically ranges from $0.50 to $2.80 per square foot. This figure includes both materials and labor – the complete package.

For projects targeting particularly high R-values (think super-insulated homes in extremely cold climates), costs can occasionally climb higher – up to $4.00 or $5.00 per square foot.

What about just the material itself? The fiberglass alone generally costs between $0.30 and $1.50 per square foot. The difference between material cost and installed cost covers labor, equipment rental (if you're brave enough for DIY), and contractor overhead.

Typical Cost Ranges per Board Foot

You might occasionally encounter pricing based on "board feet" rather than square feet. What's the difference?

While square footage measures area, a board foot is a volume measurement equal to one square foot with a depth of one inch. Think of it as a 12" × 12" × 1" block.

Spray foam insulation is commonly priced this way, but blown-in fiberglass is typically quoted per square foot for a specific thickness (determined by your target R-value).

If you're using our calculator and it mentions board feet, remember this simple conversion: 1 board foot covers 1 square foot at a thickness of 1 inch.

Factors Influencing the Installed Cost of BFS Insulation

Why do quotes from different contractors vary so much? Several factors significantly influence your final price tag.

Project size matters enormously. Larger areas need more material and labor time, though there's often a economy of scale that brings down the per-square-foot cost for bigger jobs.

Your target R-value directly impacts cost. Higher R-values require greater thickness, which means more material. If you're aiming for R-49 in your attic instead of R-38, expect to pay more.

The location within your building plays a major role in pricing. Walls typically cost more to insulate than attics because they require drilling access holes and patching them afterward. Crawl spaces with tight clearances also tend to drive up labor costs due to difficult working conditions.

Regional labor rates vary considerably. The same job might cost significantly more in San Francisco than in rural Georgia simply because of local wage differences.

Accessibility challenges like steep roofs, confined spaces, or complex framing can increase installation time and effort, pushing labor costs higher.

If you need to remove and dispose of old insulation first, that's an additional expense to factor in.

Air sealing – often recommended alongside insulation to maximize energy savings – typically involves a separate cost, but delivers enhanced performance.

Finally, different brands of blown-in fiberglass may have price variations based on density, specialized features, or performance claims.

Insights and Implications

What does this cost information mean for your insulation project?

The wide range in reported installation costs highlights the importance of getting multiple, detailed quotes from local contractors. Your specific project and location factors will significantly impact the final price.

Be prepared for wall insulation to cost more per square foot than attic insulation. This price difference reflects the increased labor involved in drilling and filling wall cavities compared to the relatively straightforward process of blowing insulation across an open attic floor.

If maximum energy performance is your goal, budget for proper air sealing in addition to insulation. While it adds to the initial investment, air sealing prevents air leaks that can dramatically reduce insulation effectiveness, ultimately affecting your long-term energy savings and comfort.

Typical Installed Cost Ranges for Blown-In Fiberglass Insulation

Note: These are general ranges, and actual costs can vary based on project specifics.

Potential Energy Savings and Return on Investment with BFS Insulation

Typical Energy Savings Percentages

How much will blown-in fiberglass actually save on your energy bills?

While research typically discusses insulation benefits broadly rather than providing precise numbers specifically for BFS, the fundamental principle remains: proper insulation dramatically reduces heat transfer, lowering your heating and cooling costs.

One particularly encouraging statistic: blown-in insulation has shown an average return on investment (ROI) of 107%, suggesting your investment often pays for itself and then some.

The actual energy savings from BFS depend on several crucial factors: your local climate, how much insulation (if any) you already have, whether proper air sealing accompanies the installation, and the final R-value achieved.

The Department of Energy (DOE) provides detailed recommendations for insulation R-values based on different climate zones across the United States. While these don't directly translate to percentage savings, they serve as an excellent indicator of the energy-saving potential.

By meeting the DOE's recommended R-values using BFS insulation, you can expect substantial reductions in your heating and cooling energy consumption. But exactly how much? That leads us to the factors that influence your savings.

Factors Influencing Energy Savings and ROI

What determines whether you'll save 10% or 30% on your energy bills after adding BFS insulation?

Your climate zone makes an enormous difference. If you live somewhere with extreme temperatures (think Minnesota winters or Arizona summers), proper insulation delivers more dramatic savings than in milder climates where you run your HVAC system less frequently.

Your starting point matters tremendously. Insulating a completely uninsulated attic might reduce energy bills by 20-30%, while adding more insulation to an already partially insulated space might yield more modest improvements of 5-15%.

Air sealing is the secret multiplier. Even the best insulation underperforms if air leaks around it. Proper air sealing prevents the leakage of conditioned air and the infiltration of outside air, maximizing the effectiveness of your insulation investment.

The final R-value achieved directly impacts energy savings. Higher R-values provide greater resistance to heat flow, leading to reduced energy needs for heating and cooling.

Local energy prices dramatically affect your actual dollar savings. In areas with high electricity or natural gas costs, the same percentage reduction in energy use translates to greater financial savings and faster payback periods.

Insights and Implications

What does this mean for your decision to invest in BFS insulation?

While specific energy savings percentages aren't consistently available across sources, the consensus strongly suggests that installing BFS insulation to meet recommended R-values will noticeably decrease your energy consumption. The extent of these savings depends heavily on your specific building conditions and environment.

If you live in a region with extreme temperatures, prioritizing higher R-values with BFS insulation will likely deliver greater energy cost reductions. The investment pays off faster when your climate demands more from your heating and cooling systems.

The substantial average ROI mentioned for blown-in insulation indicates that while there's an upfront cost, the long-term energy savings make BFS a financially sound decision for many property owners. Think of it as an investment that continues paying dividends through lower utility bills for decades to come.

Lifespan and Maintenance Considerations for BFS Insulation

Typical Lifespan of BFS Insulation

How long will your blown-in fiberglass insulation last? Good news - you're making a long-term investment.

flowchart TD
    BFS[BFS Insulation Lifespan]
    BFS --> Lifespan["Typical Lifespan:
    Lifetime of building (decades)"]
    
    BFS --> Maintenance["Maintenance Requirements:
    Minimal maintenance needed"]
    
    Lifespan --> Factors["Longevity Factors"]
    
    Factors --> InstallQuality["Installation Quality
    • Proper density
    • Complete coverage
    • Professional installation"]
    
    Factors --> MoistureControl["Moisture Control
    • Proper ventilation
    • Addressing leaks
    • Vapor barriers when needed"]
    
    Factors --> PhysicalProtection["Physical Protection
    • Avoiding compression
    • Preventing disturbance
    • Protection from pests"]
    
    Maintenance --> Inspections["Periodic Inspections:
    • Annual visual checks
    • Looking for moisture damage
    • Identifying pest issues"]
    
    Maintenance --> Ventilation["Ventilation Maintenance:
    • Keeping vents clear
    • Ensuring proper airflow
    • Preventing condensation"]
    
    Maintenance --> AvoidCompression["Avoid Compression:
    • No storage directly on insulation
    • Use proper attic flooring/platforms
    • Maintain original thickness"]
    
    Maintenance --> Replacement["Replacement Indicators:
    • Visible water damage
    • Significant settling
    • Pest infestation
    • Mold growth"]

Fiberglass insulation, including the blown-in variety, stands as one of the most durable building materials you can install. Under proper conditions, it can last for the entire lifetime of your building. We're talking decades of performance.

Unlike some other building materials that degrade or break down over time, fiberglass is remarkably stable. It doesn't typically suffer from significant degradation or R-value reduction due to chemical breakdown or material decomposition.

This exceptional longevity means your initial investment continues paying dividends through energy savings year after year, decade after decade.

Maintenance Requirements for BFS Insulation

Does fiberglass insulation need regular maintenance? Not really, and that's part of its appeal.

Once properly installed, blown-in fiberglass generally requires minimal attention throughout its life. The primary maintenance considerations involve protecting it from two enemies: moisture and physical disturbance.

Proper ventilation in attics and crawl spaces prevents moisture buildup that could compromise insulation performance and potentially lead to mold growth. This isn't maintaining the insulation directly – it's maintaining appropriate conditions around it.

Avoid compressing the insulation by storing items directly on top of it in attics. Compression reduces thickness and consequently decreases its R-value. In practical terms, this means keeping your Christmas decorations and old photo albums on proper flooring or storage platforms, not directly on the insulation.

Occasional visual inspections (perhaps annually) are worthwhile to check for any signs of pest infestation, water damage, or mold growth. These issues, if caught early, can often be addressed before they require extensive insulation replacement.

Insights and Implications

What does this exceptional durability mean for your insulation project?

The long-term stability of BFS insulation enhances its cost-effectiveness. Unlike some home improvements that need regular replacement, properly installed fiberglass insulation delivers energy savings for decades without significant degradation or maintenance costs.

The minimal maintenance requirements make BFS particularly appealing for busy homeowners and building managers. Once installed, it quietly performs its thermal barrier function without demanding ongoing attention or expenses.

The emphasis on moisture prevention highlights the interconnected nature of building systems. Your insulation's performance depends partly on other aspects of your building's design and maintenance, particularly proper ventilation and water management. Addressing these factors helps ensure the longest possible service life for your insulation investment.

Relevant Industry Standards for Blown-In Fiberglass Insulation

ASTM Standards

Ever wonder who sets the rules for insulation performance? Several important ASTM (American Society for Testing and Materials) standards govern blown-in fiberglass insulation, ensuring products meet specific performance criteria.

These standards create a framework for consistent product evaluation and quality assurance. Here are some key examples:

ASTM C518: This standard test method measures the steady-state thermal transmission properties of insulation using a heat flow meter apparatus. This is crucial for determining the all-important R-value.

ASTM C1338: Want to know if your insulation will grow mold? This standard test method assesses fungi resistance of insulation materials and facings under different environmental conditions.

ASTM C764: While specifically covering mineral fiber loose-fill thermal insulation, this standard provides context for testing methodologies that apply to loose-fill materials broadly.

ASTM C665: Though this addresses fiberglass in blanket form, it specifies testing parameters for key properties like thermal resistance and fire safety that are relevant to blown-in fiberglass as well.

These standardized procedures ensure manufacturers test their products consistently, giving you more reliable performance information when comparing different options.

Department of Energy (DOE) and Building Science Corporation (BSC)

How do you know how much insulation is enough for your specific location?

The U.S. Department of Energy (DOE) offers comprehensive resources through its Energy Saver program. Their recommendations specify appropriate R-values for different climate zones across the country. These guidelines help you determine exactly how much BFS insulation you need to achieve optimal energy efficiency while complying with local building codes.

The Building Science Corporation (BSC) serves as a respected authority in building science research. While they don't focus exclusively on BFS insulation, their expertise in thermal performance, air leakage control, and moisture management provides valuable guidance for proper insulation application and effectiveness.

North American Insulation Manufacturers Association (NAIMA)

Who watches the watchmen? NAIMA is a trade association representing manufacturers of fiber glass, rock wool, and slag wool insulation.

They play a vital role in the insulation industry by developing and administering R-value certification programs for insulation products, including fiberglass. These programs verify that the labeled R-values of certified products meet the thermal performance requirements established by the Federal Trade Commission's (FTC) Home Insulation Rule.

Additionally, NAIMA provides extensive technical information, guidelines, and resources about proper installation practices, safety considerations, and performance characteristics of fiberglass insulation.

Insights and Implications

What do these standards and organizations mean for your insulation project?

The existence of specific ASTM standards ensures blown-in fiberglass products undergo rigorous testing for critical performance attributes like thermal resistance and fire safety. This provides greater confidence in manufacturer claims when you're evaluating different products.

The DOE's climate-specific insulation recommendations offer a practical framework for determining appropriate R-values for your location. This directly informs how much BFS insulation you need to install for optimal energy efficiency and code compliance.

NAIMA's certification programs enhance the credibility of fiberglass insulation products. When selecting products, look for those certified by NAIMA to ensure the labeled R-values accurately reflect actual performance.

Summary of Key Performance Metrics for Blown-In Fiberglass Insulation

Let's bring together the critical numbers that matter most for your insulation decisions:

flowchart TD
    A[Start: Consider BFS Insulation] --> B{Existing Insulation?}
    B -->|Yes| C[Check Current R-Value]
    B -->|No| D[Determine Target R-Value by Climate Zone]
    
    C --> E{Meets DOE Recommendations?}
    E -->|Yes| F[Consider Air Sealing Only]
    E -->|No| D
    
    D --> G[Calculate Required BFS Thickness]
    G --> H[Get Multiple Installation Quotes]
    
    H --> I{DIY or Pro?}
    I -->|DIY| J[Rent Equipment]
    I -->|Pro| K[Select Certified Contractor]
    
    J --> L[Address Moisture Issues First]
    K --> L
    
    L --> M[Install BFS Insulation]
    M --> N[Verify Proper Depth/Coverage]
    N --> O[Avoid Compressing Insulation]
    O --> P[Enjoy Energy Savings!]

Key Performance Metrics for Blown-In Fiberglass Insulation

Note: These are typical ranges and actual performance may vary based on specific project conditions and product specifications.

Conclusion

Blown-in fiberglass insulation offers a rare trifecta in home improvement: flexibility, affordability, and genuine long-term value.

Its superpower lies in conformability – filling irregular spaces, wrapping around obstacles, and creating a seamless thermal barrier in places other insulation options simply can't reach.

The numbers tell a compelling story. With R-values between 2.2 and 4.3 per inch and installed costs averaging $0.50-$2.80 per square foot, BFS delivers impressive thermal performance without breaking your budget.

But the most striking figure might be that 107% average ROI. How many home improvements actually pay you back more than you spend?

What's more, this isn't a temporary fix. Properly installed and protected from moisture, BFS insulation can perform effectively for decades with virtually no maintenance.

When you calculate the savings across 20+ years of reduced energy bills, the initial investment looks less like an expense and more like one of the smartest financial decisions you can make for your home.

The versatility, proven performance, and strong ROI make blown-in fiberglass a standout option for creating a more comfortable, efficient living space that saves money year after year.