Fiberglass Insulation
Vinyl-Faced Fiberglass Insulation | White Vinyl-Faced Insulation
Finally, everyone can buy Vinyl-faced fiberglass insulation at Wholesale Cost. With Factory Steel Overstock’s cost-plus program, you can calculate wholesale prices for black-and-white vinyl-faced insulation using the Fiberglass Insulation Wholesale Calculator in seconds! Then pay the related profit amount to initiate an order.
💰Pay the profit the SAME-Day as 1st call — Earn Additional Savings Instantly💰
How To Determine Your Building’s Square Footage
WMP Facing Options Explained (VR-R, WMP-10, WMP-30, WMP-50)
Review the features of each WMP Facing Options. Then, click the preferred Buy Now button:
WMP-VR-R + Entry-Level Vapor Retarder
Normal Strength
PSP-Polypropylene /Scrim/Polyester
Perm – 0.02
MD tensile lbs/inch – 35, XD – 35
Mullen Burst PSI – 100
Fire Performance: UL-723, ASTM E84, Factory Mutual, Class A-1
Featuring a tri-directional scrim.
The metalized polyester back reflects some radiant heat away from the structure.
This WMP-VR-R (plus) Reinforced Vinyl-faced Fiberglass Insulation facing is easier to roll, cut, and install for DIY projects.
Most popular option!
WMP-10 Light-Duty Metal Building Insulation Facing
Enhanced Strength
PSK-STD –Polypropylene/Scrim/Kraft
Perm 0.02
MD tensile lbs/inch – 40, XD – 35
Mullen Burst PSI – 65
Fire Performance: UL-723, ASTM E84, CAN ULC-S102M, Factory Mutual, BS 476 Class 0, Class A-1
The Kraft side of WMP-10 & 30 reinforced vinyl-faced insulation may wrinkle less noticeably or recover more nicely over time than the metallized polyester of the WMP-VR (plus) and WMP-50.
WMP-30 – Most Popular Contractor-Grade Facing
Industrial Strength
PSK-HD Polypropylene/Scrim/Kraft Heavy Duty
MD tensile lbs/inch – 55, XD – 40
Mullen Burst PSI – 70
Fire Performance: UL-723, ASTM E84, CAN ULC-S102M, Factory Mutual, Class A-1
WMP-30 facing is often selected when the insulation may be exposed to additional wear and tear.
The WMP-30 reinforced vinyl-faced insulation is thicker and stiffer than the WMP-10; therefore, in tight or complex installations, it can be harder to work with.
WMP-50 – Heavy-Duty Scrim-Reinforced Facing for Warehouses
Premium Strength
PSKP Polypropylene/Scrim/Kraft/Polyester
Perm – 0.02
MD tensile lbs/inch – 65, XD – 60
Mullen Burst PSI – 120
Fire Performance: UL-723, ASTM E84, CAN ULC-S102M, Factory Mutual, BS 476 Class 0, Class A-1
The WMP-50 Reinforced Vinyl-faced Fiberglass Insulation is the ideal choice for high-abuse areas that require extra durability.
The metalized polyester back reflects radiant heat away from the structure.
Black-Faced Fiberglass Insulation for Open Structures
Fiberglass vinyl-faced black insulation, with a matted look, offers reliable thermal performance, moisture resistance, and a clean, durable vapor barrier—ideal for pole buildings, metal buildings, and warehouses seeking efficiency and longevity.
Fiberglass Insulation Thickness vs R-Value
| R-Value | Approx. Thickness (inches) |
| R-8 | 2.5 to 2.75″ |
| R-10 | 3.0″ |
| R-11 | 3.3 to 3.5″ |
| R-13 | 4.0″ |
| R-19 | 6.0″ |
| R-25 | 7.8 to 8″ |
| R-30 | 9.25 to 9.5.” |
Who Is Factory Steel Overstock?
Factory Steel Overstock (FSO) was established in March 2011 and accredited by the Better Business Bureau (BBB) in 2013. It has maintained an A+ rating and all 5-star reviews at the BBB. As an independent broker, it specializes in black-and-white vinyl-faced insulation and I-beam metal buildings, serving the continental United States. It was founded by a 40-year industry veteran, a practicing Spiritual Practitioner, committed to pricing transparency. Its mission is to level the playing field between corporations and the general public by empowering consumers with real costs.
It has shipped millions of square feet of insulation from 24 strategically located certified fiberglass laminators that hold NIAMA, NIA, and ASTM certifications.
It ships metal buildings from 12 strategically located certified building fabricators that hold IAS (International Accreditation Service) certification.
Why Contractors and the Public Buy From Factory Steel Overstock
Transparent Cost-Plus Pricing
With Factory Steel Overstock’s transparent cost-plus pricing, contractors and the public know the real cost and see predetermined profit amounts upfront. They no longer have to buy from traditional commission-based salespeople who often over-inflate margins for their own benefit. They can utilize FSO’s buying leverage, expertise, and specialized knowledge to secure savings. In an era when deceptive sales tactics are common, FSO stands apart with a no-gimmicks, no-hidden-cost philosophy—where customers never overpay.
Millions of Square Feet Delivered Nationwide
Factory Steel Overstock has been in business since 2011 and has sold millions of square feet of vinyl-faced fiberglass insulation nationwide; therefore, contractors and the public can be assured that insulation will be delivered efficiently.
Direct-to-Jobsite Logistics
Because Factory Steel Overstock has access to 24 strategically located shipping plants, contractors and the public can benefit from low shipping rates and quick delivery timelines.
Standard Delivery Windows
11-21 business days.
Expedited Shipping Options
3-10 days ($100 additional fee)
Wholesale Cost-Plus Insulation Pricing Model
OPTION 1: Orders below $3,000
$375 FEE
OPTION 2: Orders $3,001 – $10,000
$650 FEE
OPTION 3: Orders $10,001 – $30,000
$1,050 FEE
💰Steps for additional savings💰:
- Fill out the order form (a copy will appear in your email).
- Pay the related fee (profit) the SAME DAY as your 1st call (NO EXCEPTIONS).
- A representative will call, text, or email your price reduction that same day.
💰ACTUAL SAVINGS💰
• $0.04 per sq. ft. off WMP-50 (Black or White vinyl-facing)
• $0.02 per sq. ft. off WMP-VR-R + ( Black and White facing)$20 off each banding roll
• $10 off each patch tape roll
• $20 off each banding roll
• $0–$520 shipping reduction (amount based on the exact distance from the nearest plant)
• Future-order benefit: Can pay the Option 2 fee while ordering Option 3 amounts (30,000 sq. ft.)
A representative will review your submitted order that same day and apply all eligible reductions.
Vapor Barrier Protection Chart
| Facing | Breathability | Vapor Control | Typical Use |
|---|---|---|---|
| WMP-10 | High | Low | Dry climates – low humidity |
| WMP-30 | Medium | Medium | Light-to-moderate humidity, mixed climates |
| WMP-50 | Low | High | Cold climates – moderate humidity |
| WMP-VR / VR Plus (Most popular) | Very low | Very high | High humidity |
Standard Insulation Roll Sizes
Widths: 4′, 5′, and 6′.
Length: 16′-100′
Tabs: 2-3″ or request 1-6″.
Custom Insulation Roll Sizes
8’ wide facing is available! It is offered only with WMP-30, which is 101”. This would result in (2) 2.5” tabs.
The narrowest facing is 42”, which is typically used for 36” fiberglass, which would give you (2) 3” tabs (one each side) or (1) 6” tab (one 6” and the other side has facing/insulation with no tab).
So, if 24” fiberglass is desired, you would have (2) 9” tabs, due to the use of 42” facing. If someone wants 36” fiberglass…the same 42” facing would be used, but it would result in (2) 3” tabs.
A cut charge applies to 24” and 36” fiberglass. For budgetary purposes, charging the 24” at the 36” price should cover the cost. Same with 36” at the 48” price.
A cut charge applies to length cuts under 16′. For budgetary purposes, approximately $0.4 per ft.
Since FSO offers an online Fiberglass Insulation Wholesale Calculator, a $100 refundable fee is required for custom quotes for 1st-time buyers. Quoting insulation to match your building configuration is considered a custom quote. Note: You are guaranteed a net savings below market quotes.
Tape, Banding, and Installation Accessories
Tape, banding, and screws will match the color of the chosen insulation facing. List desired items on the order form.
Double-Sided Tape
$35
3″ x 150′. Recommended one roll per 2,000 square feet.
Double-sided tape is usually applied before installing sheeting. It temporarily holds the insulation in place until the sheeting is installed.
Patch Tape
$35 ($25 for same-day call as order).
1/2″ x 60′. Recommended one roll per 15,000 to patch. If sealing around doors, windows etc., order additional rolls.
Used to repair tears, seal gaps, joints, and seams, ensuring a continuous thermal barrier.
Insul-Holds
$78
100′ in length
These hangers will keep the heavier vinyl-faced insulation R-values from sagging in the cavity over time.
Has hooks (arrow prongs) spaced every 8″ inches on center.
Banding
$195 ($175 for same-day call as order).
One roll of 500′ banding per 1,000 square foot of coverage.
This is usually bought when installing vinyl-faced insulation in a retrofit project. It helps prevent the insulation from sagging and shifting.
Fiberglass vs Spray Foam vs Reflective Insulation
All insulation types have their market niche, as well as pros and cons. Factory Steel Overstock could offer every insulation type; however, it to offers what the most cost-effective insulation for metal buildings and pole barns, which in fiberglass vinyl faced insulation.
Fiberglass Vinyl faced Insulation vs Spray Foam
COST:
One of the most expensive insulation options on the market is Spray foam. Unlike fiberglass, which is a popular DIY material due to its ease of installation, spray foam is far more labor-intensive and usually requires professional application. With a metal building, a layman simply rolls the vinyl-faced insulation over the purlins and girts, then pins it down while installing the sheeting material. Although Spray Foam may offer a higher per square foot thermal efficiency than fiberglass viny faced, one has to consider the additional initial investment required.
HEALTH FACTORS:
One must also consider that the chemicals used in spray foam can release toxic gases if not installed properly. That is not an issue with fiberglass vinyl-faced insulation. It is imperative that one verifies that the space being insulated is well-ventilated and that all safety measures are implemented during installation.
EXPANSION:
Fiberglass Vinyl-faced insulation is not going to expand; however, the nature of spray foam is to expand as it cures. This can sometimes lead to unwanted pressure on drywall and framing if not closely watched during installation.
Fiberglass Vinyl-faced Insulation vs Reflective
Effectiveness in Cold Climates
Reflective insulation is designed to reflect radiant heat away from your metal building or pole barn; therefore, it is an ideal insulation type in hot climates. Its primary purpose is to keep your structure cool; however, most locations require insulation to address climate conditions for all seasons. In other words, an insulation that also deals with winter temperatures. Reflective insulation has a limited ability to resist heat flow, which makes it less effective in cold climates. For this reason, fiberglass vinyl-faced insulation is a more practical choice.
Airspace Installation Requirements
Simply put, reflective insulation requires a gap to be effective, and there are situations where this may be a challenge during installation. This is not a requirement with Fiberglass Vinyl-faced insulation.
Although all insulation types have their market niche, pros and cons, fiberglass vinyl-faced insulation is the most preferred type for DIY projects. Ready buyers, call 1-888-512-1116.
I-Beam Metal Buildings
Why Metal Building Buyers Pay More for INSULATION After the Initial Order
Traditional metal building sellers often encourage customers to purchase a bare-bones building package first, postponing accessories—especially insulation—until after the building deposit is secured. While this approach may seem convenient at the time, many buyers quickly discover it leads to significantly higher INSULATION costs later in the process.
The Common 2 Step Sales Sequence
Step 1: The “Lock in the Building Now” Strategy
Buyers are frequently presented with an attractive base building price and urged to secure it immediately to “lock in steel pricing.” When questions arise about insulation, customers are often told:
“Your project coordinator will review accessories with you after the order is placed.”
This quote suggests that insulation pricing will be consistent with the competitive building quote!
Step 2: The Post-Order Accessory List
After the deposit is paid, the buyer receives a list of accessories, many of which are critical for any steel structure, at “outrageous high prices”. By this point in the ordering process, the seller has more pricing power as the customer is financially and psychologically committed to the building purchase. Many buyers feel they must purchase the insulation directly from the building supplier to avoid delays or mistakes. Also, many consumers wonder whether they have the expertise to source out accessories. Given the points stated, many buy their accessories, including insulation, at these overpriced prices.
Best Practices for Metal Building Buyers
Price vinyl faced Insulation Before Ordering the Building
Always obtain a detailed vinyl-faced fiberglass insulation quote at the same time as the building proposal.
Looking for more? Metal Buildings & Metal Building Kits by MBOS.
