Fiberglass Insulation
Vinyl-faced fiberglass insulation | Reflective Insulation
For the first time, the public can instantly calculate true Wholesale Costs for certified commercial-grade vinyl-faced fiberglass insulation and reflective “Prodex” insulation online (below). Ready buyers can receive cost + quotes for I-beam metal buildings. Factory Steel Overstock is the only outlet revealing actual costs and profit amounts (brokerage fees).
Founded by a 40-year industry veteran, Factory Steel Overstock presents simple steps to buying below market rates.
Steps for Buying Fiberglass Vinyl-Faced Insulation

1. Order Fiberglass Insulation
Use the Fiberglass Insulation Wholesale Calculator (above) to see the savings. Then click the desired “Buy Now ” button (below). Fill out an Order Form and pay the related brokerage fee.

2. Pay the Manufacturer
You will receive the order number, contact information, and easy instructions for paying the balance to the supplier via email.

3. Schedule Delivery
The shipping department will call to schedule a convenient delivery date. Expedited shipping arrives in 7-10 days; standard delivery is 11-21 days.

4. Sign for Delivered Goods
When insulation rolls arrive, inventory them, then sign for the vinyl-faced rolls.
Wholesale Cost | Broker Fees |
$ 0 – $2,000 | $395 |
$2,000 – $10,000 | $595 |
$10,001 – $30,000 | $795 |
“We have used Factory Steel Overstock twice. Great service, product, and prices!”
– Bryan Freese (Posted February 2025 at Google Reviews and the BBB)
Reinforced vinyl fiberglass
Review the four tear-resistant reinforced vinyl fiberglass insulation facings (below) and click the desired Buy Now button.
The VR-R (plus) and WMP-50 are on SALE!
VR-R (plus)
Normal Strength
The WMP-VR-R Plus Reinforced vinyl fiberglass insulation provides exceptional energy efficiency, superior durability, and enhanced thermal performance, offering greater moisture and mold resistance than VR alone.
WMP-10
Superior Strength
The WMP-10 Reinforced vinyl fiberglass insulation offers superior moisture resistance, enhanced thermal efficiency, and greater durability compared to the VR-R Plus reinforced vinyl fiberglass.
WMP-30
Industrial Strength
The WMP-30 reinforced vinyl fiberglass insulation 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 insulation provides even greater moisture resistance, superior thermal performance, and enhanced durability compared to the WMP-30.
Industry professionals often recommend reinforced vinyl fiberglass insulation as the most durable and energy-efficient solution for metal buildings and pole barns. These high-performance fiberglass batts come with a tough, tear-resistant vinyl facing reinforced with polyester scrim. This reinforced layer adds durability and acts as a vapor barrier, helping to prevent moisture, condensation, corrosion, and mold—all of which can compromise your building’s performance over time. While options like spray foam and rigid foam board are available, the most popular and practical choices remain reinforced vinyl fiberglass and reflective insulation for metal structures and pole barns.
Tape and Banding for Vapor Barrier Fiberglass Insulation
There is patch and double-side tape as well as banding and screw listed below. List your desired accessories on the order form.
Two-Sided
$35
The purpose of the two -tape is to secure insulation during construction.
3″ x 150′. Recommended one roll per 2,000 square feet.
Patch Tape
$35
This tape is used to seal gaps, joints, and seams, ensuring a continuous thermal barrier.
1/2″ x 60′. Recommended one roll per 15,000
Banding
$195
Banding is used to prevent the insulation from sagging and shifting.
One roll of 500′ banding per 1,000 square foot of coverage.
Discounted Fiberglass Batt Insulation
Fiberglass insulation is often referred to as a “batt.” The term refers to pre-cut rectangular sections. The public can order rolls (uncut) or batts.
Reinforced fiberglass dimensions
Length: 16′ – 100′. Rolls shorter than 16′ cost an additional $0.6 per sq. ft.
Width: 3′, 4′, 5′, and 6′

Why Buy From Factory Steel Overstock
✅ Free Fiberglass and Reflective Insulation Wholesale Calculators that reveal actual costs instantly!
✅ Fiberglass laminator is NAIMA, NIA, and ASTM certified. Reflective Insulation is ES-IC certified, and the Building manufacturing plant is IAS certified.
✅ Factory Steel Overstock has maintained an A+ Better Business Bureau grade and ALL 5-Star reviews since 2013.
✅ All new customers come from referrals, repeat business, and organic searches—not paid advertising.
✅ There are No Upfront Costs! Customers confirm savings before paying the listed brokerage fee.
✅ Second-time buyers who send a picture of their delivered material and write a review receive 20% off their brokerage fee.
✅ If a customer verifies a lower price elsewhere, FSO will reduce its brokerage fee or have the certified supplier reduce its rates!
How to Install Vapor Barrier Insulation in an Erected Steel Building
How to Install Vapor Barrier Insulation in an Erected Pole Barn
I-Beam Metal Buildings

Wholesale Cost | Brokerage Fee |
$0 – $50,000 | $2,000 |
$50,001 – $100,000 | $3,000 |
Buy an I-Beam Steel Building at Wholesale Rates:
✅ Get one or more competitors’ quotes to learn accurate market rates.
✅ Call 1-888-512-1116 or fill out the quote/order form.
✅ Pay the brokerage fee the same day as receiving our quoted savings (no exceptions)
✅ Pay the certified IAS manufacturer’s building deposit within 5 days
Reflective “Barrier” Insulation

Factory Steel Overstock offers the industry’s best reflective insulation—PRODEX! It is a RADIANT, VAPOR, and AIR BARRIER, far superior to Bubble Insulation! When you buy from us, you can speak with a live agent and receive a price lower than anywhere else!
Buy High R-Value Reflective Insulation for Less:
✅ Use the Reflective Insulation Wholesale Calculator to determine price
✅ Call 1-888-512-1116 or fill out the quote/order form.
✅ After receiving savings, pay the insulation cost + brokerage fee that same day.
✅ Insulation delivers in as little as 7 days!
R-Value 22
4′ X 85.3′ (341 sq. ft.)
Boost insulation with twice the thickness of R-17 and a higher R-value. Enjoy superior strength, tear resistance, and easy installation using a hot gun—no tape needed. Features reflective reinforced foil, closed-cell polyethylene foam, and an extra reflective foil layer.
R-Value 17
4′ x 175′ (700′ sq. ft.)
With a 5 mm (0.2″) thickness, this barrier provides radiant, vapor, and air protection in one. It blocks 97% of radiant heat transfer and is resistant to humidity and condensation. Each 175′ roll includes adhesive for seamless installation—no tape required.
R-Value 15
4′ x 175′ (700′ sq. ft.)
This 5 mm (0.2″) barrier offers a frame spread of 0 and blocks 97% of radiant heat transfer. Combining radiant, vapor, and air protection in one, it features a durable multi-layer design with reflective reinforced foil, closed-cell polyethylene foam, and a UV-resistant black facing.
R-Value 15.3
4′ x 175′ (700′ sq. ft.).
At 5 mm (0.2″) thick with a frame spread of 0, this all-in-one solution blocks 97% of radiant heat transfer while serving as a radiant, vapor, and air barrier. Its durable layers include reflective reinforced foil, closed-cell polyethylene foam, and a UV-resistant white facing for enhanced performance.
CLICK to read more Testimonials
Helpful Videos
Podcast on Buying I-Beam Steel Buildings the Smart Way!
“We can present YOU savings because we have the buying leverage and willingness to do so! – Owner John Barber
Imagine you’re in the market for fiberglass, reflective insulation, or metal buildings. The traditional way to proceed is to approach different outlets and ask for a quote. Then, you patiently wait for all your quote requests to return, hoping at least one price will excite you.
But consider this: What if randomly requesting quotes from traditional outlets is the problem? What if the quotes that come back are higher than expected? What if the materials quoted are slightly different on each returned quote, making it difficult to compare them accurately? In such a scenario, what should one do?”
Now, could you consider choosing a different starting process? Instead of depending on traditional outlets to give you their quoted price, you calculate the wholesale delivered price online, verify the savings, and then purchase for a low flat brokerage fee.
With Factory Steel Overstock, you buy from an independent broker that has maintained an A+ BBB grade and 5-star rating since its inception. Think of it like this: Factory Steel Overstock helps you buy something for less than you can buy it on your own. You pay the certified supplier directly and pay FSO for the savings provided. It is a risk-free savings program. You pay nothing until you see the savings!
Why Don’t Traditional Companies Share Their Actual Cost?
Have you ever wondered why traditional fiberglass insulation outlets hesitate to reveal their wholesale price or let you buy online? Essentially, these sellers worry that if they disclose their wholesale price, the average buyer will request or demand a price reduction, threatening their profit margins.
Also, selling online reduces margins. It’s that simple! These sellers know the more ignorant the buyer is of the actual cost, the higher the probability of earning more from them. Moreover, offering retail prices ensures the seller a cushion for negotiations.
You’d like to know the wholesale fiberglass insulation price because…
- You want to be empowered!
- You don’t want to haggle!
- You want the assurance you are not overpaying!
Did You Know?
Most of the vapor barrier, fiberglass insulation, and metal buildings sold across the U.S. originate from just a few major manufacturers. These large corporations distribute their insulation products—including moisture barrier insulation—through layers of retail outlets, including subsidiaries, regional dealers, contractors, and general resellers.
Here’s the truth:
Even if you gather 20 quotes, chances are you’re reviewing the same exact material—just sold by different outlets, each tacking on their own markup. These traditional sellers have no real incentive to offer the lowest prices on vapor barrier insulation. Their profit is often tied to how high they can price the material.
Now, we’re not saying there’s anything wrong with these companies. But their lack of price transparency makes customers feel like they need to keep shopping around. The misconception that “you get what you pay for,” touted by retail sellers, leads the majority to believe that higher prices equate to better quality. This misconception drives people to stick to the outdated practice of seeking quotes from traditional retail sources, thinking the best deals are only there.
Many need to realize that traditional outlets inherently charge retail, as there’s no incentive for them to do otherwise. The more you pay, the more they make! The public, conditioned to accept retail practices, continues to pay retail fiberglass insulation prices without considering the obvious. They will always pay retail unless they buy from a source that is not financially motivated by increased profits.
Though the majority of our sales go through only a few suppliers, we’re not limited to promoting a single brand or supplier. That independence allows us to leverage our network to access the lowest wholesale rates and pass those savings directly to you.
About 15 years ago, a friend suggested I use a car broker for my vehicle purchase since I was having a challenge buying a particular car in my preferred price range. I went ahead with the broker despite my initial skepticism due to a $500 upfront fee. Surprisingly, the broker presented the car with all the features I requested within a day. The best part is that it saved me thousands of dollars! This inspired me to present an even better program: Reveal an actual wholesale cost that confirms savings before expecting ANY fee payment! I was aware this was revolutionary and would be viewed with skepticism; however, being a Spiritual Practitioner, I knew this was the proper course of action.
Over the years, this company has benefited and improved from the public’s encouraged feedback. On the rare occasion that a consumer locates a lower vapor barrier insulation or metal building price than offered online, the supplier is educated on this reality, and a price modification is made. With Factory Steel Overstock, we are open, appreciative, and proactive to customer feedback.
It is Different HERE
In an industry full of hidden fees, vague quotes, and confusing markups, we choose a different path—one guided by values. Factory Steel Overstock transparently list prices! While many companies conceal their pricing until they’ve got you on the phone, we believe in being upfront from the start. Why? Because we’re not just selling fiberglass vinyl-faced insulation, reflective insulation, or metal buildings, we’re building trust.
Why Our Customers Trust Us
We don’t inflate prices to see whether you’ll pay that rate. We consider that unethical. Instead, we openly list our actual costs and fees so you can make an informed decision without sales pressure.
One supplier even asked us to remove our pricing from our site. That tells you everything you need to know.
We didn’t flinch—and we won’t. Our loyalty starts and ends with the public!