Fiberglass Insulation Wholesale Prices

How to Buy Fiberglass Insulation at Wholesale Rates

Name Your Price

  • This option is exclusively for customers who know the exact market price for their steel building or insulation.
  • Can name their exact purchase price.
  • $350 Insulation brokerage fee for up to $25,000 of wholesale cost
  1. Fill out the Name Your Price Form A representative will speak with you to verify your intent.
  2. If your desired purchase price is achieved, sign the proposal, return it, and pay the brokerage fee THAT DAY.
  3. Factory Steel Overstock will submit the order and service it through delivery and beyond.

Wholesale Custom Quotes

  • Select this option if you want assistance with choosing items for your project.
  • $350 – $500 brokerage fee for insulation orders.
  1. Fill Out an Insulation Quote-Order Form.
  2. Call 1-888-512-1116. A representative will confirm your intentions to purchase and an assessment of your quote request.
  3. Receive a wholesale quote, that confirms savings. Sign the proposal and return it. Pay a $350 – $500 brokerage fee for Fiberglass Insulation orders .
  4. Factory Steel Overstock will submit the order and service it through delivery and beyond. For Fiberglass orders, pay the wholesale fiberglass cost + taxes to the supplier within 3 days of the order.
  • Fiberglass insulation delivery is in 2 weeks.

For the entire process, click ORDER TO DELIVERY or call 1-888-512-1116

If you are located in these states: ID, MN, MT, ND, SD, WI, and WY, your shipping cost will have to be quoted by a representative. For questions, call 1-888-512-1116.

Factory Steel Overstock is a True Broker, not a Commission Salesman

When it comes to buying goods or services, you may encounter two common types of sales professionals: brokers and commission salesmen. While both play essential roles in facilitating transactions, they differ significantly in how they operate and the benefits they offer to buyers.

Expertise and Market Knowledge

One of the primary advantages of working with a broker is their in-depth expertise and market knowledge. Brokers typically specialize in specific industries or markets, giving them a comprehensive understanding of product offerings, pricing trends, and market dynamics. This expertise can be invaluable when you’re seeking advice or insights about your purchase.

On the other hand, commission salesmen may have a narrower focus, often limited to promoting the products or services of a single company. While they may be knowledgeable about their own offerings, they might not provide the broader industry perspective that brokers can offer.

Product Variety and Choice

Brokers are not tied to a single company or product line, which means they can provide you with a wider range of options. They act as intermediaries, connecting buyers with sellers across various brands and suppliers. This variety allows you to explore different products and select the one that best suits your needs and budget.

Commission salesmen, in contrast, primarily promote the products or services of the company they work for. While they may offer some choice within that company’s offerings, their options are inherently more limited.

Unbiased Advice

Brokers have a fiduciary responsibility to act in the best interests of their clients. They are motivated to provide unbiased advice and recommendations because their compensation doesn’t depend on selling a particular product or service. This impartiality ensures that you receive guidance that genuinely serves your requirements.

Commission salesmen, while often knowledgeable and helpful, may have a financial incentive to promote the products or services that generate the highest commissions for them or their company. This can sometimes lead to a conflict of interest and potentially push you toward a solution that may not be the best fit for your needs.

Cost Savings

Working with a broker can often lead to cost savings. Brokers can negotiate on your behalf, leveraging their industry connections and expertise to secure better deals and favorable terms. They may also be aware of special promotions, discounts, or incentives offered by various sellers, ensuring that you get the best value for your money.

Commission salesmen, while skilled at building relationships with clients, may not always have the same level of negotiation power or access to cost-saving opportunities, as their focus is primarily on selling their company’s products.

Time Efficiency

Brokers can save you time in the buying process. Instead of dealing with multiple sales representatives from various companies, you can rely on a single broker to streamline the entire process. They handle the research, negotiations, and paperwork, allowing you to focus on your core responsibilities.

Commission salesmen, while helpful in their own right, represent only one company or product line. Consequently, you may need to engage with several of them to explore your options fully, potentially increasing the time and effort required.

Both brokers and commission salesmen play vital roles in facilitating transactions, but they differ significantly in their approach and the benefits they offer. When considering a purchase, particularly for complex or high-value items, working with a broker can provide you with valuable expertise, unbiased advice, cost savings, and a broader range of choices. While commission salesmen have their merits, it’s essential to be aware of their potential limitations, such as product bias and limited choices. Ultimately, the choice between a broker and a commission salesman depends on your specific needs and the nature of your purchase.

Factory Steel Overstock Pricing Structure and Related Benefits:

Factory Steel Overstock offers a pricing structure designed to provide customers with the best wholesale prices while keeping things simple and transparent.

Insulation –1st Time BuyersInsulation –2nd Time Buyers
$350 – Online Orders$250 – Online Orders
$500 – Custom Orders$400 Custom Orders

The benefits of this pricing structure include:

  • No Upfront Cost: You see your delivered wholesale price FIRST – that confirms savings – before paying the brokerage fee.
  • Cost Transparency: Customers are presented with clear, upfront wholesale pricing that reveals a fixed flat-rate brokerage fee, eliminating hidden costs and the need for lengthy negotiations.
  • Time and Effort Savings: The fixed flat-rate brokerage fee simplifies pricing and saves customers valuable time and effort. This streamlined approach allows customers to focus on their projects, confident that they are getting the best deal.
  • Price Match Guarantee: Factory Steel Overstock’s commitment to offering the best deals is backed by a price match guarantee. If customers find a better deal elsewhere, is ready to match it AND provide an additional $1,000 (steel buildings) and $200 (Insulation) discount.
  • Preventing Costly Rework: Expert guidance and support directly from the website prevent costly rework due to misconfigurations or overpriced products, ensuring customers get it right the first time.
  • Partners in Business: Factory Steel Overstock is committed to building lasting partnerships. Loyal, repeat customers can enjoy lower flat rates brokerage fees as a testament to the company’s dedication to helping customers succeed in their steel and insulation projects.
  • Savings Beyond Products: Factory Steel Overstock goes beyond product pricing to help customers save on shipping costs by utilizing over 40 plants, ensuring that overall expenses remain low.

Questions 1-888-512-1115

Fiberglass Insulation Roll 13
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Fiberglass “Batt” Insulation

Fiberglass Insulation is blankets of woven long-strands of fiberglass. In most cases it is laminated on one side to a vapor-barrier facing.  You can order different protective facings that all serve as a vapor retarder.  

  • Standard insulation rolls have either 2- 3″ tabs or 1 – 6″ tab
  • Most orders include double face tape and patch tape. 
  • Cut lengths are normally 30 to 150 in length. 
  • Insulation width: 4′, 5′, and 6′
  • Thickness: 2.75″ (R-8), 3″ (R-10), 3.5 (R-11), 4″ (R-13), 6″ (R-19), 8″ (R-25)
  • Our standard insulation is WMP VR-R+ (PLUS) facing instead of VR-R. 

Not all Fiberglass Insulations are the same

  • Fabric and Banding: Be aware there are insulation systems that are of low quality. Some sellers utilize fabric that is thin and cheap, as well as use plastic nylon strapping in place of traditional metal banding.  Most erectors will complain about this kind of banding twisting up on the screw as they try to attach the strapping. 
  • Naima 202-96 compliance. This is an independent test performed by Home Innovations.  This test is the gold Standard for Flexible Fiberglass Insulation to be Laminated for Use in Metal Buildings. When the facing is laminated to the fiberglass it crushes the fiberglass.  The test ensures that after manufacturing the product unrolls to the specified R-value.   Some manufacturers do not want to pay for this test and say they do in-house testing.  In these cases, the product often arrives from these manufacturers with less than claimed performance.  Simply put, it means other insulation outlets, R-19 (6″) insulation may show up at the job site as 4″ or 5″ with a lower R-Value!  Our NAIMA 202-96 compliance guarantees you get the R-value you ask for.
  • Comcheck- Energy Compliance Certificate  COMcheck is a program put out by the department of energy.  This program models buildings in a compliance software to verify government energy code performance as it relates to insulation.  The certificate will specify a percentage equal to or better than code requirements.   COMCheck certificates available on request
  • Secure Price: Some firms will indicate that they have the option to increase the price based on insulation availability. This means these firms can process the order and then hit the customer with an increase at the last minute before shipping. At that point, the customer is stuck and may have to wait several weeks to get their insulation delivered if they don’t accept the price increase. A few steel building outlets are doing this same tactic.

With Factory Steel Overstock, there are no surprises. There is never a possibility of a price increase after the initial order! Insulation is normally delivered within 2-3 weeks and the customer is called within 48 hours of delivery.   

Factory Steel Overstock’s invoices are detailed:
  • Type of insulation (example- VR-R +)
  • Number of rolls
  • Width of rolls
  • Length of rolls
  • Total square ft of insulation
  • Estimated Weight
  • Volume in cu ft (if requested)
  • Thickness of insulation
  • R-Value
  • Wholesale Delivered cost.
  • Brokerage Fee (Profit amount)
  • Tax rate

Understanding R – Value

R-Value is based on measuring the amount of heat loss, or the ability to retard the loss of heat flow. Understanding the R-value with fiberglass insulation is easy: The R-value is directly related to the fiberglass thickness. The thicker the fiberglass blanket you have, the higher the R-value. Factory Steel Overstock post wholesale pricing for R-Values 8 to 25.

Approximate Thickness
















For more information, click Fiberglass Resource Guide

Additional Resources Below

A Step-by-Step Guide to Installing Fiberglass Insulation in a Steel Building

Fiberglass insulation is a highly effective way to regulate temperature and improve energy efficiency in steel buildings. Whether you’re looking to keep your workshop comfortable year-round or reduce energy costs in a commercial steel structure, proper insulation is essential. This article provides a comprehensive guide on how to install fiberglass insulation in a steel building to help you create a more comfortable and energy-efficient space.

Read More

Materials and Tools You’ll Need

Before diving into the installation process, gather the necessary materials and tools:

  1. Fiberglass insulation batts or rolls: Choose the appropriate R-value for your climate and insulation needs.
  2. Safety gear: Safety glasses, gloves, and a dust mask to protect yourself from fiberglass particles.
  3. Utility knife or insulation cutter: To trim insulation to size.
  4. Measuring tape: For accurate measurements.
  5. Straightedge or square: To ensure straight cuts.
  6. Staple gun and staples: For securing insulation.
  7. Vapor barrier (optional): Helps prevent moisture infiltration.
  8. Ladder or scaffold: Depending on the height of your steel building.
  9. Insulation supports (optional): To hold insulation in place before securing it.

Step-by-Step Installation Guide

  1. Safety First:
    • Put on your safety gear, including safety glasses, gloves, and a dust mask.
    • Ensure proper ventilation in the building by opening windows and doors or using fans if available.
  2. Measure and Cut:
    • Measure the space between the steel framing members (studs or purlins) where you plan to install insulation.
    • Use a utility knife or insulation cutter to cut the fiberglass insulation batts or rolls to the correct size, ensuring a snug fit within the framing.
  3. Install Vapor Barrier (Optional):
    • If your steel building is susceptible to moisture infiltration, consider installing a vapor barrier. Attach it directly to the interior side of the steel frame, creating an airtight seal. Overlap seams and use adhesive or tape to secure it.
  4. Secure Insulation:
    • Place the cut insulation into the spaces between the steel framing members. Ensure a tight fit without compressing the insulation, as this reduces its effectiveness.
    • If you’re working on a ceiling, use insulation supports (such as wires or metal rods) to hold the insulation in place before securing it.
  5. Staple or Fasten:
    • Use a staple gun or appropriate fasteners to secure the insulation to the steel framing. Space staples or fasteners every 6 to 12 inches along the framing members.
    • Avoid over-compressing the insulation, as this can reduce its thermal performance.
  6. Seal Gaps and Edges:
    • Inspect the installation for any gaps or seams where insulation might be missing or loose. Fill these areas with additional insulation or use insulation tape to seal seams.
  7. Complete the Installation:
    • Continue installing insulation throughout the entire steel building, ensuring that every wall, ceiling, and floor area is adequately covered.
  8. Electrical and Plumbing Considerations:
    • If your steel building has electrical wiring or plumbing, be cautious not to cover or compress these elements with insulation. Maintain a safe clearance around such fixtures.
  9. Verify Installation:
    • Once the insulation is in place, inspect the entire installation to ensure it’s secure, without any gaps or loose sections.

Properly installing fiberglass insulation in a steel building can significantly enhance its energy efficiency and comfort. Follow this step-by-step guide, taking care to wear the necessary safety gear and ensuring a snug, secure fit. With the right insulation, your steel building will be better equipped to withstand temperature extremes while reducing energy costs.

Installing Single Layer Fiberglass Insulation to a Steel Building

  1. You simply place the insulation roll over the top of the roof purlins and / or wall girts. This is done prior to the exterior metal panels being installed.
  2. The fiberglass rolls are essentially sandwiched between the interior metal and the exterior sheeting.
  3. The vapor barrier (usually white finish) faces towards the inside of the building, giving the building a clean finished look. We always Re-enforce this facing so that our customers have the sturdiest backing. With a single layer application, you can achieve R-Values up to R-25 (8″), but not higher. We recommend only applying up to 19″(6″) on the sidewall so that there is no unbalanced sheeting appearance on the sidewalls.
  4. The 3” tabs are to be rolled over and stapled. Orders come with double-sided tape for easy adherence to building, and a small supply of patch tape to assist with minor tears if needed
Locate by Single layer information

Simple Installation Procedure for Double Layer Insulation System: 

double layer picture

The great thing about fiberglass insulation is you can just add an additional layer and increase your R-value. The highest R-value you can have with a single layer of insulation is R-19 which is 6”.  Your purlin depth determines the thickness of your bottom layer.

  1. Faced fiberglass (we always include a reinforced faced backing) rolls are installed between the purlins and/or girts, filling the cavity. This cavity is important, for it allows the insulation to maximize its efficiency.
  2. This insulation is secured by banding that is screwed to the underside of the purlins. An additional layer of unfaced insulation is then placed over the top of purlins or girts, creating a double-layer high R-Value system.

Retrofitting Your Building with Fiberglass Insulation: A Step-by-Step Guide

Proper insulation is crucial for maintaining comfortable temperatures and energy efficiency in any building. If you have an existing structure that lacks adequate insulation, retrofitting it with fiberglass insulation can be a cost-effective and energy-saving solution. In this comprehensive guide, we’ll walk you through the steps to insulate a building with fiberglass insulation that has already been erected.

  1. Assess Your BuildingBefore you begin the insulation project, conduct a thorough assessment of your building. Identify areas that require insulation and take note of the type of construction materials used, as well as the existing insulation, if any. Pay close attention to:
    • Walls: Check if there is insulation in the walls and assess its condition.
    • Attic or Roof: Inspect the attic or roof space for insulation and signs of moisture or damage.
    • Floors: If applicable, evaluate the insulation situation in crawl spaces or below the floor.
  2. Select the Right Fiberglass InsulationChoosing the appropriate fiberglass insulation is crucial. Consider factors such as R-value (thermal resistance), thickness, and facing material. R-value depends on your climate zone and the level of insulation needed, so consult local building codes or energy efficiency guidelines for guidance. Common types of fiberglass insulation include batts, rolls, and loose-fill insulation.
  3. Gather Necessary Tools and MaterialsTo insulate your building effectively, gather the following tools and materials:
    • Fiberglass insulation batts or rolls
    • Utility knife or insulation cutter
    • Safety gear (gloves, long-sleeved shirt, safety glasses, and a dust mask)
    • Tape measure
    • Caulk or spray foam insulation (for sealing gaps and air leaks)
    • Staple gun and staples (for securing insulation in place)
    • Vapor barrier (if required)
    • Ladder and scaffolding (if working in high areas)
  4. Safety PrecautionsSafety should be a top priority when working with fiberglass insulation. Wear protective clothing and a respirator to avoid skin irritation and inhaling airborne particles. Ensure proper ventilation in the work area, and keep children and pets away from the insulation materials.
  5. Installation Process
    • Walls: If the building’s walls lack insulation, remove any wall panels or cladding necessary to access the wall cavities. Cut the fiberglass insulation to the required size, ensuring it fits snugly between the studs. Staple or secure the insulation in place. Reattach the wall panels or cladding and seal any gaps or seams with caulk or spray foam.
    • Attic or Roof: In the attic or roof space, roll out or place fiberglass insulation between the joists or trusses, taking care not to compress the insulation. Ensure that there are no gaps or spaces left uncovered. If needed, install a vapor barrier to prevent moisture issues.
    • Floors: For insulating crawl spaces or underfloor areas, secure fiberglass insulation to the undersides of the floor joists. Make sure the insulation is properly supported and doesn’t sag.
  6. Seal Air Leaks and GapsBefore completing the project, seal any gaps, cracks, or air leaks in the building’s envelope. Use caulk or spray foam insulation to seal around windows, doors, electrical outlets, and any penetrations in the building’s shell.
  7. Monitor and TestAfter insulating, monitor the building’s energy consumption and temperature to assess the effectiveness of the insulation. Look for improved energy efficiency and increased comfort levels.


Retrofitting your building with fiberglass insulation can significantly enhance its energy efficiency and comfort, while also reducing heating and cooling costs. By carefully assessing your building’s needs, selecting the right insulation materials, and following proper installation techniques, you can transform your existing structure into a more energy-efficient and comfortable space. If you’re uncertain about any aspect of the insulation process, consider consulting with insulation professionals to ensure the best results for your retrofit project.

A Comprehensive Guide to Installing Fiberglass Insulation in a Pole Barn

Pole barns are versatile and popular structures used for various purposes, including as agricultural buildings, workshops, storage facilities, or even as residential spaces. To create a comfortable and energy-efficient environment within a pole barn, proper insulation is crucial. One effective insulation material is fiberglass. In this comprehensive guide, we will walk you through the step-by-step process of installing fiberglass insulation in a pole barn.

Step 1: Gather Your Materials and Tools

Before you begin the installation process, make sure you have all the necessary materials and tools at hand. You will need:

  • Fiberglass insulation batts or rolls (choose the appropriate R-value for your climate).
  • Staple gun and staples.
  • Utility knife or insulation cutter.
  • Safety equipment: gloves, safety glasses, dust mask, and long-sleeved clothing.
  • Ladder or scaffolding (if necessary).
  • Measuring tape.

Step 2: Plan Your Installation

  • Measure: Start by measuring the dimensions of the areas you plan to insulate, such as walls and the roof or ceiling. Accurate measurements will help you determine the quantity of insulation needed.
  • R-Value Consideration: Choose the appropriate R-value of fiberglass insulation based on your local climate and the intended use of the pole barn. Higher R-values provide better insulation against temperature extremes.

Step 3: Safety First

Before working with fiberglass insulation, prioritize safety:

  • Put on your safety gear, including gloves, safety glasses, and a dust mask.
  • Ensure proper ventilation in the work area to minimize exposure to airborne fiberglass particles.

Step 4: Insulating the Walls

  1. Prepare the Area: Clear any obstructions and ensure that the wall surfaces are clean and dry.
  2. Cut Insulation: Measure the height between the pole barn’s horizontal girts and cut the fiberglass insulation batts or rolls to fit snugly between them. Leave no gaps.
  3. Install Insulation: Place the cut insulation against the wall, ensuring it fits securely between the horizontal girts. Staple the insulation in place, attaching it to the girts and ensuring it is taut and free of wrinkles.
  4. Repeat: Continue this process, working your way around the entire interior perimeter of the pole barn until all walls are insulated.

Step 5: Insulating the Roof or Ceiling

  1. Prepare the Area: Access the roof or ceiling area safely using a ladder or scaffolding. Ensure the space is clear of debris.
  2. Cut Insulation: Measure the spacing between the roof trusses or purlins and cut the fiberglass insulation to fit the spaces between them.
  3. Lay Insulation: Place the cut insulation on top of the ceiling or between the roof trusses, making sure it is evenly spread and covers the entire surface. If there’s a vapor barrier, ensure it faces the conditioned side of the pole barn.

Step 6: Seal Gaps and Joints

After installing the fiberglass insulation, seal any gaps, joints, or seams to create an airtight barrier. Use caulk or spray foam insulation to seal around windows, doors, and any other openings in the pole barn’s envelope.

Step 7: Post-Installation Safety

After completing the installation, remove your safety gear carefully and wash your hands thoroughly to remove any fiberglass particles. Properly dispose of any insulation scraps.

Step 8: Test and Monitor

Monitor the interior temperature and energy consumption of your pole barn to assess the effectiveness of the insulation. You should notice improved temperature control and energy efficiency.


Installing fiberglass insulation in a pole barn is a practical and cost-effective way to create a more comfortable and energy-efficient space. By carefully planning your installation, prioritizing safety, and following the steps outlined in this guide, you can ensure that your pole barn is properly insulated for your specific needs. A well-insulated pole barn not only provides better comfort but also contributes to energy savings in the long run.

Choosing Fiberglass Over Spray Foam Insulation: Understanding the Decision

Fiberglass Insulation
VR-R + Fiberglass Insulation
spray foam 1

Spray Foam Insulation

When it comes to insulating homes and buildings, the decision to choose one insulation material over another is a critical one. While spray foam insulation has been gaining popularity in recent years, many individuals and contractors still prefer the tried-and-true option of fiberglass insulation. In this article, we will explore the reasons why people opt for fiberglass insulation over spray foam insulation, delving into the unique advantages that fiberglass offers for different applications.

  1. Cost-Effectiveness

One of the most compelling reasons why people choose fiberglass insulation over spray foam is cost-effectiveness. Fiberglass insulation is notably more budget-friendly compared to spray foam. For homeowners or businesses with tight budgets, the lower upfront cost of fiberglass can be a significant deciding factor. Additionally, fiberglass insulation is readily available in various forms, such as rolls and batts, making it easy for DIY enthusiasts to install, further reducing labor costs.

  1. Ease of Installation

Fiberglass insulation is renowned for its simplicity of installation. Unlike spray foam, which often requires professional expertise and specialized equipment, fiberglass can be installed by homeowners or contractors with basic insulation knowledge. This DIY-friendliness not only saves money on installation costs but also provides flexibility to those who prefer a hands-on approach to home improvement.

  1. Adaptability

Fiberglass insulation’s adaptability is another factor that draws people to it. Whether you are insulating a new construction or upgrading an existing structure, fiberglass insulation is versatile enough to meet various insulation needs. It can be easily cut and fitted into various spaces, from attics to walls, and provides a snug fit when installed correctly. This versatility makes it a popular choice for retrofit projects where unique space constraints must be considered.

  1. Fire Safety

Safety is paramount when selecting insulation materials, particularly for residential and commercial applications. Fiberglass insulation is non-combustible and does not contribute to the spread of fires. It is often preferred in areas where fire safety is a concern, such as around furnaces, electrical systems, or in fire-rated walls. This inherent fire resistance gives fiberglass insulation a competitive edge in terms of safety.

  1. Environmental Considerations

Fiberglass insulation is considered a more environmentally friendly option compared to some other insulation materials. It is made from sand and recycled glass, reducing the demand for new resources. Furthermore, fiberglass insulation is non-toxic and non-allergenic, making it a safe choice for those concerned about indoor air quality. The eco-friendliness and health considerations play a significant role in the decision to choose fiberglass over spray foam.

  1. Sound Insulation

Beyond its thermal properties, fiberglass insulation is known for its soundproofing capabilities. It effectively dampens sound transmission, making it an attractive option for homeowners who seek both thermal comfort and a quieter living space. Whether you’re insulating a home office, a bedroom, or a media room, fiberglass can help create a more serene environment.

  1. Moisture Tolerance

Fiberglass insulation can withstand moderate levels of moisture without losing its insulating properties. While it’s not the most moisture-resistant material available, it can perform adequately in areas where controlled moisture levels are maintained. For situations where moisture resistance is crucial, fiberglass insulation can be treated to enhance its ability to repel water.


Choosing insulation materials is a decision that should be based on a careful consideration of various factors, including budget, installation ease, adaptability, safety, environmental impact, soundproofing, and moisture tolerance. For many individuals and contractors, fiberglass insulation remains a preferred choice over spray foam insulation due to its cost-effectiveness, ease of installation, adaptability, fire safety, environmental friendliness, sound insulation, and moderate moisture tolerance.

Ultimately, the choice between fiberglass and spray foam insulation depends on your specific needs and priorities. Consulting with a professional insulation contractor can provide valuable insights into which material best suits your project, ensuring that you achieve a comfortable, energy-efficient, and well-insulated living or working space.

Recommended Reading: Order to Delivery

Rolls of Fiberglass Insulation
VR-R+ Fiberglass insulation
Foam Board Insulation
Foam Board Insulation

Fiberglass vs. Foam Board Insulation: Why Fiberglass Remains the Preferred Choice

When it comes to insulating homes, steel buildings and pole barns, two popular choices are fiberglass and foam board insulation. While foam board insulation, often made of materials like expanded polystyrene (EPS) or extruded polystyrene (XPS), has its merits, fiberglass insulation continues to be the favored option for many. In this article, we’ll delve into the compelling reasons why people choose fiberglass insulation over foam board insulation and explore the advantages that fiberglass offers for various applications.

  1. Cost-Effectiveness

One of the primary factors influencing the choice of fiberglass insulation over foam board is cost-effectiveness. Fiberglass insulation is known for its affordability, making it an appealing option for homeowners and contractors who want to keep insulation expenses within budget. Foam board insulation, on the other hand, is often pricier, both in terms of material costs and installation labor. For those seeking a cost-effective insulation solution, fiberglass is the natural choice.

  1. Versatility in Installation

Fiberglass insulation is lauded for its simplicity of installation. It is available in rolls, batts, and loose-fill forms, and it can be easily cut and fitted into various spaces, such as attics, walls, and crawl spaces. The user-friendliness of fiberglass insulation makes it a popular option for DIY enthusiasts, allowing them to handle insulation projects without professional assistance. This versatility in installation appeals to homeowners who prefer to take a hands-on approach to home improvement.

  1. Adaptability to Existing Structures

Fiberglass insulation’s adaptability is a compelling reason for its continued preference. Whether you’re insulating a new construction project or upgrading an existing structure, fiberglass insulation is versatile enough to meet various insulation needs. It can be customized to fit irregular spaces, making it a practical choice for retrofit projects, where unique space constraints need to be considered. This adaptability ensures that fiberglass can be used in a wide range of insulation applications.

  1. Fire Safety

Safety is a paramount concern when it comes to insulation materials, particularly in residential and commercial settings. Fiberglass insulation has a significant advantage over foam board insulation in terms of fire safety. It is non-combustible and does not contribute to the spread of fires, making it an ideal choice for areas where fire safety is a top priority. This inherent fire resistance is a critical factor for many individuals and contractors when choosing insulation materials.

  1. Environmental Considerations

Fiberglass insulation is regarded as a more environmentally friendly option compared to foam board insulation. It is primarily made from recycled glass and sand, reducing the demand for new resources. Additionally, fiberglass insulation is non-toxic and non-allergenic, ensuring that it doesn’t compromise indoor air quality. These eco-friendly and health-conscious attributes contribute to its continued popularity as an insulation material.

  1. Soundproofing Capabilities

Beyond its thermal insulation properties, fiberglass insulation is celebrated for its soundproofing capabilities. It effectively dampens sound transmission, creating a quieter and more peaceful living or working environment. For homeowners seeking both thermal comfort and a noise-free space, fiberglass insulation offers a holistic solution.

  1. Moisture Tolerance

While not the most moisture-resistant material available, fiberglass insulation can tolerate moderate levels of moisture without compromising its insulating properties. For many applications, such as interior walls and attics, this level of moisture tolerance is adequate. Additionally, fiberglass insulation can be treated to enhance its resistance to moisture in areas where it is a concern.


The choice between fiberglass and foam board insulation should be made after careful consideration of various factors, including budget, ease of installation, adaptability, fire safety, environmental impact, soundproofing capabilities, and moisture tolerance. For many individuals and contractors, fiberglass insulation remains the preferred choice over foam board insulation due to its cost-effectiveness, versatility in installation, adaptability, fire safety, environmental friendliness, soundproofing qualities, and moderate moisture resistance.

Ultimately, the decision depends on the specific requirements of your project. Consulting with a professional insulation contractor can provide valuable insights into which material best suits your needs, ensuring that you achieve a well-insulated, energy-efficient, and comfortable living or working space. Fiberglass insulation’s enduring popularity is a testament to its numerous benefits and its ability to meet a wide range of insulation needs.