Metal Building Insulation
3 Steps to buy at Wholesale Cost + $550 brokerage fee.
- Click the desired insulation type below to review prices and compare.
- Then fill out a Quote – Order Form if you wish to order. A wholesale proposal will be emailed for signature along with a link to pay brokerage fee.
- Pay a minimum of the brokerage fee ($550) the same day as receiving a proposal. Pay Fiberglass insulation cost within 3 days directly to the certified supplier. Pay the Reflective insulation cost to Factory Steel Overstock. Questions call 1-888-512-1116.
Fiberglass R-Value 10 -25
Our Fiberglass Insulation originates before laminating from the highest-rated insulation supplier – Owens Corning.
Delivers in a quick 2 weeks!
- 3″, 4″, 6′, and 8″‘ Thickness
- 3′, 4′, 5′, and 6′ – Roll Width
- 30′ – 150′ Lengths
Reflective R-Value 17
Our 4′ wide roll’s adhesive is attached, making the installation a breeze! Dimensions: 4’x 175′ (700 sq. ft). Thickness 5 mm.
Delivers in a quick 7 to 10 days
- Thickness: 5 MM
- Roll Width 4′
- Standard Length 175′
Reflective R-Value 17 (5’2Tall)
This taller roll has adhesive attached to each roll. Dimensions: 5′ 2″ x 125′ (700 sq. ft). Thickness 5 mm.
Delivers in a quick 7 to 10 days
- Thickness: 5 MM
- Roll Width 5′ 2″
- Standard Length 125′
Reflective White R-Value 15.3
If you prefer a white finished look, high R-value, with the savings of Reflective insulation, this is a perfect choice! Dimensions: 4’x 175′ (700 sq. ft). Thickness 5 mm.
Deliver in a quick 7 to 10 days!
- Thickness: 5 MM
- Roll Width 4′
- Standard Length 175′
Reflective Black R-Value 15
If you prefer a black finished look, high R-value, with the savings of Reflective insulation, this is a perfect choice! Dimensions: 4’x 175′ (700 sq. ft). Thickness 5 mm.
Deliver in a quick 7 to 10 days!
- Thickness: 5 MM
- Roll Width 4′
- Standard Length 175′
Reflective R-Value 22
#1 Insulation Seller (Best Value)
This insulation is VERY easy to install and durable! Dimensions: 4’x 85.3′ (341 sq. ft). Thickness 10 mm.
Delivers in a quick 7 to 10 days.
- Thickness: 10 MM
- Roll Width 4′
- Standard Length 85.3′
How many reflective rolls should you order? Use our insulation calculator below.
#1 Insulations for Pole Barns and Metal Buildings
Factory Steel Overstock is the only outlet that posts hundreds of true wholesale Fiberglass and Reflective insulation prices for the general public to review and compare. The profit amounts are separated for transparency and clarity. These two certified insulation types are the best materials for sufficiently insulating pole barns and metal buildings with vapor and air barriers. The High R-Value reflective insulations add a 97% radiant barrier and are often selected over the fiberglass because it is lighter in weight and therefore, easier to install. It is certified by ES-ICC. Our Fiberglass insulation is certified by NIAMA, NIA, and ASTM.
“The process worked just as they said it would and at a price even lower than I was originally quoted. Hands down the best value.” – Eric Rhodes (Purchase fiberglass insulation)


The site posts R- Values of 10 to 25 prices for Fiberglas Insulation and R-Values of 15 to 22 for Reflective; however, we quote up to an R-value of 38 with Fiberglass. Wholesale quotes are usually completed on the same day as requested. The profit amounts are transparently shown.
Since FSO has posted delivered estimates and guarantees savings, we ask that you do not request a wholesale quote until the day you are ready to buy. Your cooperation and integrity enable us to reduce operational costs and offer the highest quality certified insulations below market prices. Thank you in advance! Questions call 1-888-512-1116