Metal Building Insulation
Everyone wants a low price on certified vapor barrier metal building insulation—but real savings are earned, not just handed out. Since 2011, Factory Steel Overstock (FSO) has helped customers save on fiberglass insulation with no gimmicks or hidden fees.
FSO offers wholesale pricing and invites buyers to suggest a fair profit amount, rather than having the final price imposed on them by a retail corporation or commission-driven sales reps. This conscious program trusts and empowers customers to handle this unique responsibility.
Will you offer a fair profit amount?
Founded by a 40-year industry expert and Spiritual Practitioner, FSO breaks from the norm by prioritizing win-win deals over profit maximization.
FSO also provides the general public with a Fiberglass Insulation Wholesale Calculator, letting customers determine the actual cost of certified NAI, ASTM, and NAIMA-compliant insulation. Available metal building insulation facings include tear-resistant WMP-VR-R (Plus), WMP-10, WMP-30, and WMP-50, offered in both black and white. With its A+ Better Business Bureau rating and all 5-star reviews since its inception, the public can be assured of excellent price, quality, and service.
Follow the listed steps for best rates.
- Determine the actual cost— before profit has been added—with the Fiberglass Insulation Wholesale Calculator.
- Fill out an order form and indicate the fair amount of profit you are offering to pay today.
- If your offer is accepted, pay the profit amount the same day.
Video: How to Order Metal Building Insulation
Use the Fiberglass Insulation Wholesale Calculator to determine the actual price before profit has been added.
Metal Building Insulation Rolls
For most construction projects requiring fiberglass metal building insulation, rolls are often pre-cut batts that fit between structural members. Generally speaking, before fiberglass insulation is cut, it is referred to as rolls or blankets. Once cut, it is referenced as batts. In most cases, the insulation is cut to some degree for public use, as uncut metal building insulation rolls would be heavy and cumbersome to lift. The facings added to the insulation rolls or blankets serve as a vapor retarder, providing additional moisture control. Since condensation is a significant issue with metal buildings, these facings protect the structure from rust, mold growth, and future structural problems. The previous sentence is not some hyperbole. All metal building sheets (condensation) occur when there is a temperature difference between the outside of the structure and the inside.



You want a continuous, unobstructed insulation barrier and a seamless layer covering the entire metal building structure. If not, you will lose thermal efficiency, and condensation issues may still occur. Fiberglass metal building insulation rolls are the ideal item for creating this needed protection. Fiberglass vinyl insulation rolls minimize heat transfer, allowing the interior of your structure to remain comfortable even in fluctuating external temperatures. Consequently, everyone within the structure experiences consistent warmth during the winter and refreshing coolness in the summer. What does all this add up to? Decreased reliance on heating and cooling systems results in significant energy savings and lower utility bills, which everyone wants.
Fiberglass metal building Insulation rolls are critical in enhancing the performance and comfortability of your metal structure, pole barns, or agricultural shop. Whether it’s a riding arena, cold storage structure, or industrial shop, selecting the correct metal building insulation is vital to the building’s efficiency and structural integrity. This page highlights the various types of insulation, their importance, and a wide variety of metal building insulation prices. Moreover, I will highlight the benefits of saving money through energy efficiency, maintaining the desired temperature, reducing condensation, and improving soundproofing.
Save Money with Energy Efficiency
Let’s be pragmatic here: We are all interested in how to save money. Again, fiberglass metal building insulation rolls save money because they reduce your heating and cooling costs.
Since many people may be unaware that metal building sheeting is a highly conductive material, I believe it is necessary to elaborate on this issue. Although this might seem counterintuitive, cold outside temperatures will be as cold or colder inside a metal structure. Therefore, substantial heat loss will occur without proper metal building insulation rolls. Likewise, the conductive nature of the metal skin can lead to excessive heat gain within a building, as it heats up and acts like a stove. A wise consumer installs the proper metal building insulation rolls, which act as a radiant, air, and condensation barrier, requiring less energy to heat or cool the building. We all want a consistent indoor temperature as well as reduced energy bills.
Please remember to review our metal building insulation roll prices using the Fiberglass Insulation Wholesale Calculator on this webpage.
Maintain Desired Temperature
When we come in from a cold or a hot day, we all desire a particular comfortable temperature within our structures. This is the primary reason people desire fiberglass metal building insulation rolls . Insulation directly contributes to the comfort levels inside structures. Based on the R-value (measurement of the effectiveness of protecting the building), the insulation affects the exchange of heat or cold through the walls and roof. Consequently, insulation helps stabilize indoor temperature regardless of external weather conditions. This helps create and maintain the desired temperature year-round.
Curtailing Condensation
Metal buildings and pole barns sweat. This is a fact that shouldn’t be ignored. Sweat is called condensation. Condensation is a common phenomenon that occurs under specific weather conditions. Some refer to it as the dew point within a building envelope. It occurs when moist air inside the building interacts with the cold skin of the uninsulated metal sheets. Water droplets form. This can lead to potential damage, including rust, mold, and mildew, over time. Properly installed metal building insulation helps control this condensation by keeping the metal skin at the desired temperature. Moreover, protecting the building from rust, mold, and mildew has health benefits. Furthermore, insulation also increases the longevity of a structure.
Sound Dampening
If you’ve been in an uninsulated metal building or pole barn during a rainstorm, you know it sounds similar to a plane taking off. Metal structures are known for being quite noisy, mainly when industrial machinery is in operation or during heavy rain and hailstorms. Sound waves quickly reverberate through metal sheeting, which can amplify noise to the point where it becomes unbearable for occupants. Metal building insulation rolls are an effective sound-dampening agent because they absorb sound vibrations. Securing the proper insulation for structures such as churches, schools, libraries, residences, office buildings, and hospitals is crucial for maintaining hearing, concentration, and overall well-being within these establishments.
We can summarize by stating that a vapor barrier is vital. It provides sound dampening, energy efficiency, and the needed tear resistance. It is the one investment that pays for itself. Selecting and installing the correct metal building insulation is one of the most crucial aspects of any new construction project.
Now that we understand the effectiveness of metal building insulation in reducing heat flow, condensation, and enhancing energy efficiency, let’s examine the various insulation products and methods commonly selected. These would include fiberglass, reflective (radiant barrier), rigid foam, and spray foam.
Buy Fiberglass Insulation Online
On this page, you can buy fiberglass insulation online at wholesale rates. With Factory Steel Overstock’s cost-plus program, you are in control of the process—there is no haggling or up-charging! Factory Steel Overstock has the only fair program for determining the added profit above the listed wholesale price. The speed, ease, and size of the order determine the amount of added profit.
- Fiberglass Insulation
Fiberglass insulation, often called “Batt” insulation, is made from fine glass fibers and is still the most popular insulation for metal buildings. It is the preferred choice because of its cost-effectiveness and thermal resistance qualities.
- Positive Features: effective sound dampening and you can easily buy fiberglass insulation online.
- Negative Features: When installing, one needs to wear protective gear due to the risk of irritation. Additionally, the R-value may decrease over time due to moisture absorption if you do not have a vapor barrier and a tear-resistant facing. With FSO, you can by fiberglass insulation online with any of the popular protective facings.
2. Reflective Insulation
Reflective insulation, or radiant barrier insulation, has become a popular metal building insulation type because it effectively reflects radiant heat away from the metal building or pole barn. It is not affected by moisture, making it uniquely effective in hot or humid climates.
- Positive Features: As an excellent radiant barrier, it reflects heat away, reducing energy costs during the warm months. Additionally, it is lightweight and easy to install.
- Negative Features: It is not effective in very cold climates, and it is often selected for warmer, humid locations. It requires an air gap to reach its listed R-value; therefore, proper installation is key. It is an insulation to complement fiberglass-reinforced faced insulation. It should never be selected over fiberglass insulation, especially when there are cold and warm climate conditions to be tackled.
3. Rigid Foam Board Insulation
Though we offer listed prices for this type of insulation, one of its benefits is its high insulation value per inch. In layman’s terms, this means you are getting a high R-value or protection from heat or cold. Rigid foam insulation can be applied to the exterior and interior of the structure. It is made from polystyrene, polyisocyanurate, or polyurethane.
- Positive Features: Since it has a high R-value per inch, it requires minimal thermal bridging. In addition, it will add structural integrity to the structure. You can apply it against the interior metal members or beneath exterior cladding,
- Negative Features: It will cost you more than most available options. For this reason, as well as the fact that it requires protective barriers for fire safety and must be cut to fit corners,Factory Steel Overstock has refrained from offering it on our site.
4. Spray Foam Insulation
One can’ t argue that spray foam insulation is also a popular barn insulation type. After all, it can seal gaps and crevices because it expands once applied. Closed-cell spray foam has a higher R-value and moisture barrier than open-cell. However, due to its expensive cost, Factory Steel Overstock has elected not to offer this insulation type. Review our metal building insulation prices and choose what you feel is best for you.
- Positive Features: Since it fills gaps and difficult-to-reach areas, it’s a good air and moisture barrier. In addition, it adds structural integrity and a high R-value per inch (the closed-cell version).
- Negative Features: This is not insulation that the average layperson can’t install. Consequently, a professional installer is required. This adds to the cost. It cost more than our fiberglass insulation price. For this reason, you will not see this insulation amount Factory Steel Overstock’s metal building insulation prices.
Metal Building Insulation Rolls

You should make sure, no matter what metal building insulation rolls you choose, they are installed correctly. The 4 points below are also important:
- Get the R-value that is needed: The R-value measures the protection the structure gets from heat and cold. Select the appropriate R-value for the applicable climate.
- Starting the project the right way: Make sure the area where you will install the insulation is clean so that everything fits well. If the surface you are applying your insulation is not cleaned correctly, it will affect the R-Value
- Secure the rolls: Your insulation should be tightly attached, leaving no gaps. If you notice any gaps, seal them.
- Periodically assess the installed insulation: All insulation is affected by time, so periodically confirm the insulation status.
Metal Building Insulation Rolls are precisely cut for the standard member spacings of metal structures. They are usually made of fiberglass or mineral wool and designed to be laid over the purlins or fitted between the steel members before the exterior sheeting is applied.
- Positive Features: It is considered the most cost-effective insulation. It is easy to install by a layperson and often done without professional assistance. Like all insulation, it improves thermal performance and reduces condensation. No matter how large the size structure is, it is easily installed.
- Negative Features: It has lower R-values than rigid and spray foam and can sag over time if not correctly installed. However, because of the cost-effectiveness and ease of installation, Factory Steel Overstock believes it is a better value overall than rigid or spray foam.
Pole Barn Insulation Rolls

These rolls are identical to metal building insulation rolls but are designed for the spacings of wooden pole barn structures. Like metal building insulation rolls, they are used for energy efficiency, to prevent condensation, and to control airflow.
- Positive Features: It is easy to handle and install, designed to fit the typical spacing of pole barn framing, and effective at reducing heat transfer.
- Negative Features: It can be bulky and has a lower R-value per inch than foam options. Again, because of its cost-effectiveness and ease of installation, Factory Steel Overstock recommends it.
Getting the correct metal building insulation rolls is key to keeping your structure cool in the summer and warm in the winter. Knowing about the different kinds of insulation types, their benefits, and how to install them correctly will save you money in the long run.
How to Choose the Correct Metal Building Insulation type
Ultimately, there are many factors you should consider when selecting an insulation type for your metal building or pole barn—for instance, climate, the building’s use, budget, and energy efficiency goals. High R-value insulation types are preferable in colder climates, while in warmer or humid areas, one should consider reflective insulation types. When the highest- performance is required, consider rigid or spray foam; however, keep in mind that the cost will increase. The more cost-effective insulation, like fiberglass or reflective, combined is often the choice for larger projects or areas with milder climates. Some have even chosen to combine insulation types such as fiberglass and reflective to optimize performance.
Comparison of Vinyl-faced insulation and Vinyl-backed insulation
The terms vinyl-faced insulation and vinyl-backed insulation are often used interchangeably, but they can have slightly different meanings. Here’s a breakdown of the potential differences:
Vinyl-faced insulation consists of fiberglass or mineral wool with a vinyl sheet on one side. This type of insulation serves as a vapor barrier to protect against moisture and condensation damage. Conversely, Vinyl-backed insulation, also made of fiberglass or mineral wool, has a vinyl layer on the opposite side. Though it provides protection, it isn’t a primary vapor barrier.
Key Difference
- Vinyl “Backed” implies support, usually not exposure. This type of insulation is less common than faced. It is utilized where the facings help hold the insulation in place and reinforce the insulation.
- “Faced” usually refers to the visible or finished side, intended to be seen. Traditionally, this type of insulation was purchased for pole barns and metal buildings.
Choosing Between Batt and Blanket Metal Building Insulation
Let’s dive into the difference between batt and blanket metal building insulation:
Simply stated, when people are referring to batt insulation, they mean the insulation is precut. In turn, when referring to blanket, the insulation has not been cut.
Batt insulation, often made of fiberglass, is a prevalent insulation type found in homes. It is an excellent DIY insulation type because it is easy to install and cost-effective. Although it comes in pre-cut panels, you still have to be careful fitting around obstacles like pipes and wiring. If you aren’t patient and focused, you can easily leave gaps, causing a loss of energy efficiency.
Blanket Insulation, conversely, usually arrives in large, continuous rolls that can be cut and trimmed to fit whatever space demands. It is often the choice for large, open areas with few obstacles. It’s also cost-effective and easy to install, like batt insulation. Like with batt, you should wear protective gear when installing to avoid skin irritation or inhalation of fiberglass particles.
When selecting between the two insulation types, consider the nature of your project. If the area to be insulated has obstructions, pre-cut batt insulation is the wiser choice. But if you’re looking to insulate large, unobstructed areas, blanket insulation provides the better choice. Regardless of your choice, both options are energy efficient and commonly used for DIY metal building projects.
Insulation for Metal Buildings
After calculating your wholesale cost, select your desired vapor barrier metal building insulation facing by clicking the “Buy Now” button below. Then, fill out an order form, specifying the desired roll dimensions, accessories, and the profit amount you are willing to pay. When the form is completed, the total price, including shipping, will appear instantly. Submit the form and call 1-888-512-1116.
VR-R (Plus)
#1 Seller
Normal Strength
Our WMP-VR-R (Plus) reinforced vinyl fiberglass insulation is the preferred choice because it delivers superior energy efficiency, durability, and thermal performance, all at a great price. With enhanced moisture and mold resistance compared to standard VR or WMP-10.” It has a low perm rating and a high tear resistance level. Making it the perfect choice for your DIY project.
WMP-10
WMP-10 is a fiberglass-reinforced vapor retarder facing with a polypropylene/scrim/kraft (PSK) laminate, offering basic durability and moisture control. WMP-VR-R, featuring a reinforced polyester backing, offers enhanced puncture and tear resistance, improved handling, and a better appearance. It’s ideal for high-traffic or exposed areas where enhanced strength and aesthetics are needed. We recommend choosing WMP-VR-R for superior performance in demanding insulation applications, unless WMP-10 is priced lower.
WMP-30
Industrial Strength
The WMP-30 reinforced vinyl fiberglass metal building offers superior moisture resistance, improved thermal performance, and greater durability compared to the WMP-10.
WMP-50
Premium Strength
The WMP-50 reinforced vinyl fiberglass metal building insulation provides even greater moisture resistance, superior thermal performance, and enhanced durability compared to the WMP-30.
List the roll dimension you desire on the order form

Barn Insulation
A protective fiberglass facing metal barn insulation will deliver year-round benefits, whether you are located in the North, South, East, or West. Proper insulation helps maintain consistent indoor temperatures while reducing energy costs. Since metal sheeting sweats, the right barn insulation reduces condensation, shielding equipment and animals from moisture-related damage. One of the added benefits of barn insulation is that it also enhances sound control and comfort. What’s the benefit of having a structure if you’re reluctant to go inside due to temperature or noise discomfort? Ultimately, your metal barn insulation prolongs the lifespan of your building by mitigating corrosion and thermal stress, thereby safeguarding it against damage.
Within this page, you are given the liberty to access the actual cost before profit has been added. Then you are given the bonus privilege of suggesting a profit amount you believe is fair and acceptable. This alone separates Factory Steel Overstock from other sources.