Fiberglass R10 to R38 for Metal Buildings/Pole barns

Free Accessories, No Surcharges, No Added Taxes, No Figuring Out Cut Sizes = No Worries!


At Insulation4Less (I4L), we simplify your fiberglass metal insulation needs with hassle-free solutions. Here's how:

  • We'll Handle the Details
    We'll determine the exact quantities of tape, screws, banding, and roll lengths needed for your project. Our team will give you a call within a few business days of placing your order to confirm and ensure you have everything you need.

  • Customized Shopping Cart
    Simply enter your building size and select your desired R-value in our customized shopping cart. We’ll calculate the required quantities and roll lengths for your insulation. Or, choose the "Buy by Rolls" option to select quantities and roll lengths manually.


Why Buy Fiberglass Insulation from I4L?

  • Lower Cost, No Hidden Fees
    No surcharges, no taxes – just competitive pricing and honest service.

  • Pressure-Free Shopping
    We handle all the details, so you can focus on your project without any sales pressure.

  • Credibility You Can Trust
    With independent reviews on Site Jabber and an A+ rating with the BBB, you can trust I4L to deliver top-quality products and service.


R-values Available: 13, 19, 25, 30, 36 and 38


  • Select: "Custom cuts: Root and/or Walls" in the "Select an option" box below, to see the most R-value options. Some R-values are only available for the roof, while others are only available for walls. For assistance, email: sales@Insulation4Less.com


Delivery Time: 1 - 3 Weeks



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Liner System

Roof installation instructions

Wall installation instructions


Long Tab Liner System

Installation instructions


Accessories (Included)

Patch tape (3" x 150')

Double Sided tape (1.5" x 180')

Screws (Tek3 x 3/4" painted white)

Banding (1" x 500' white steel banding)



Introduction to Fiberglass Insulation for Metal Buildings and Pole Barns


When it comes to insulating metal buildings and pole barns, fiberglass insulation stands out as one of the most cost-effective and efficient solutions. These types of structures, often used for agricultural, industrial, and storage purposes, are particularly vulnerable to extreme temperature fluctuations and moisture issues. Proper insulation not only ensures comfort and energy efficiency but also protects the structural integrity of these buildings.


In this article, we’ll explore why fiberglass insulation is the ideal choice for metal buildings and pole barns and highlight the key benefits it offers for building owners and operators.


Why Choose Fiberglass Insulation for Metal Buildings and Pole Barns?


Fiberglass insulation is the go-to solution for insulating metal structures and pole barn buildings due to its versatility, affordability, and superior thermal performance. Its lightweight nature makes it easy to install on metal frames or within pole barn cavities, while its moisture and mold resistance ensures long-term durability. Additionally, fiberglass insulation is non-combustible, providing an added layer of safety for buildings used to store equipment, vehicles, or flammable materials.


Whether you’re constructing a new pole barn or retrofitting an existing metal building, fiberglass insulation delivers reliable performance in a variety of applications.


Benefits of Fiberglass Insulation for Metal Buildings and Pole Barns


1. Improved Temperature Control


Metal and pole barn buildings are highly conductive, making them prone to extreme temperature swings. Fiberglass insulation provides excellent thermal resistance (R-value), keeping interiors cooler during summer and warmer in winter. This consistent temperature regulation improves comfort and functionality.


2. Energy Efficiency


By minimizing heat transfer, fiberglass insulation reduces the energy demand for heating and cooling systems. This leads to lower energy bills and a more sustainable building. For property owners looking to enhance energy efficiency, fiberglass is an excellent choice.


3. Condensation Prevention


Metal buildings are particularly susceptible to condensation, which can lead to rust, corrosion, and water damage. Fiberglass insulation acts as a barrier, reducing moisture buildup and protecting the structural components of your building. Enhance this feature and protect your fiberglass from moisture by installing Prodex Total between the fiberglass and the metal sheeting.


4. Noise Reduction


Fiberglass insulation also helps dampen external noise, making metal buildings and pole barns quieter. This is especially beneficial for buildings near busy roads, farms, or industrial sites.


5. Cost-Effectiveness


Compared to other insulation options, fiberglass is one of the most affordable solutions available. It provides excellent performance at a fraction of the cost of more expensive alternatives, making it ideal for budget-conscious building projects.


6. Sustainability


Many fiberglass insulation products are made from recycled materials, making them an environmentally friendly option. By choosing fiberglass, you’re not only enhancing your building but also reducing your environmental footprint.


Why Insulate Your Metal Building or Pole Barn?


Without proper insulation, metal buildings and pole barns can experience significant heat loss, condensation issues, and higher energy costs. Fiberglass insulation solves these problems effectively, ensuring that your building remains comfortable, efficient, and protected from environmental challenges.


Boost Your Building's Performance with Fiberglass Insulation


Fiberglass insulation is the perfect choice for metal buildings and pole barns, offering a range of benefits, including energy efficiency, condensation control, noise reduction, and affordability. Whether you’re constructing a new structure or upgrading an existing one, installing fiberglass insulation is an investment that pays off in reduced energy costs, improved durability, and enhanced comfort. Turbo boost performance, by installing Prodex Total Insulation (insulation, radiant barrier, vapor barrier and air barrier in one product) between the fiberglass insulation and the metal sheeting.

Banded Liner System Data Sheet

Liner Banded System (R25, R30, R36 and R38 products): Provides leading-edge OSHA-compliant Fall Protection System and meets energy code requirements. A low permeance fabric serves as the vapor retarder preventing condensation, contributing to air barrier integrity, and providing a brighter resilient finish. Reduces noise transfer inside and outside the building, providing superior sound abatement. 


 - Meets Fire code
 - GREENGUARD Certified



Insulation Core (fibers)


PropertyTest MethodResult
Thermal ResistanceASTM C177/C518See R-value of item
Surface BurningUL 723/ASTM E84Flame spread index <25
Combustion CharacteristicsASTM E136Non-combustible
Water Vapor SorptionASTM C1104< 0.2% by volume
Fungi ResistanceASTM C1338Passes - no growth exhibited
CorrosivenessASTM C665Passes

  • Formaldehyde-free
  • Made with 99% natural materials - not acrylic
  • Made in the U.S.A
  • Uses a minimum of 65% recycled content - 41% being post-consumer


VR-R+ Facing

Polypropylene / Scrim / Ployester

Meets ASTM C1136 Type 11, IV, VI


FACING COMPOSITIONDESCRIPTIONVALUES (I-P)
White FilmPolypropylene12.6 lbs / 3000 ft2
AdhesiveFlame Resistant 
ReinforcingTri-directionalMD:  4 / inch
 FiberglassXD:  4 / inch
FilmMetalized Polyester0.0005 inch


PHYSICAL PROPERTIESTEST METHODVALUES (I-P)
Basis Weight Scale14 lbs / 1000 ft2
Permeance (WVTR)ASTM E96<0.02 perm
 Procedure A(grains / hr*ft2*in Hg) 
Bursting StrengthASTM D77490 psi
Tensile StrengthASTM D828MD: 35 lbs / inch
  XD: 35 lbs / inch
Temp. & Humidity ResistanceASTM C1258No Corrosion
  No Delamination
Low Temperature ResistanceASTM C1263Remains Flexible
 4 hours at -20°F (-29°C)No Delamination
High Temperature ResistanceASTM C1263 ModifiedRemains Flexible
 4 hours at 240°F (116°C)No Delamination
Mold ResistanceASTM C1338No Growth
Dimensional StabilityASTM D1204<0.5%
Light ReflectanceASTM E133185%


FIRE TESTINGASTM E84 / UL 723
 Polypropylene SidePolyester Side
Flame Spread1010
Smoke Developed3540



Metal Buildings

Pole Barns

Recommended Prodex Products to use with Fiberglass


10M Prodex Total Plus 4 ft x 85.3 ft (341 sq ft) 

48 INCH Prodex Total 5M Plus 4 ft x 175 ft (700 sq ft)

FAST ACTION Prodex Total 5M Plus 4 ft X 175 ft (700 sq ft)

72 INCH Prodex Total 5M Plus 6 ft x 100 ft (600 sq ft)

62 INCH FAST ACTION Prodex Total 5M Plus 5'2 X 125' (645 sq ft)


  • Fiberglass Insulation and Moisture Sensitivity :

    • Fiberglass insulation's R-value decreases when exposed to moisture. The R-value comes from the air-pockets between the fibers, not the fibers themselves. As the air pockets fill with moisture, the R-values reduces.
    • Moisture compromises the insulation's effectiveness in maintaining thermal performance.
  • Solution - Install Prodex Total between Fiberglass and metal sheeting

    • Prodex Total is an insulation, radiant barrier, vapor barrier, and condensation eliminator in a single product.
    • Prevents moisture from reaching the fiberglass insulation, ensuring it stays dry.

  • Resulting Benefit:

    • Helps fiberglass insulation retain its thermal value by shielding it from moisture.

Related products

10M Prodex Total Plus 4 ft x 85.3 ft (341 sq ft)

$334.95 $434.95

10M Prodex Total Plus 4 ft x 85.3 ft (341 sq ft)

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48 INCH Prodex Total 5M Plus 4 ft x 175 ft (700 sq ft)

$389.95 $489.95

Ship dimensions: L: 48" W: 24" H: 24" Lbs: 26

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FAST ACTION Prodex Total 5M Plus 4 ft X 175 ft (700 sq ft)

$399.95 $499.95

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