How To Insulate A Pole Barn: Types Of Insulation, Equipment Checklist & A Step-By-Step Guide

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Have you experienced chilly draughts, fluctuating temperatures, mold, mildew and condensation problems in your pole barn?

Proper pole barn insulation can help remedy these problems and improve the environment inside your structure, whether you use it for work, entertainment, storage or even to house animals.

Here, we’ll share how to insulate a pole barn, detail different types of insulation and offer our #1 pick for the best pole barn insulation for your project.

Looking for pole barn insulation? Contact us!

Pole barn for keeping horses

Types Of Pole Barn Insulation

The type of insulation you choose for your pole barn will depend on your specific needs and expected results for your project.

One factor that can help you assess different types of insulation is the R-value of each. This index measures the insulation’s ability to resist heat transfer. The higher it is, the better results you can expect.

Some of the most common types of pole barn insulation include:

Fiberglass Insulation

Fiberglass comes in batts, rolls or loose-fill.

Fiberglass is a popular insulation option because it combines affordable pricing with easy installation.

If you opt for fiberglass insulation, we recommend using foil fiberglass vinyl for your pole barn. It offers the benefits of foil faced insulation, including the ability to increase energy efficiency, provide soundproofing and repel pests.

Spray Foam Insulation

Depending on whether it’s open-cell or closed-cell, spray foam offers different thermal and water-resistant characteristics. Its R-value ranges from 3.7 to 6.5 per inch, depending on the thickness, density and type.

Spray foam insulation prevents the nesting of rodents, bugs and birds. However, it is not effective as a condensation and vapor barrier and it does not seal well around punctures.


Prodex is a revolutionary all-in-one solution for numerous pole barn issues like heat, cold, condensation, mold, mildew and noise disturbances that are multiplied by the metal roof.

Prodex includes a reinforced reflective foil that is unattractive to pests and prevents them from nesting in your structure.

Pole barn metal roof

Whether you use your pole barn for entertainment, work or storage, Prodex can help improve the environment inside.

Not sure which type of insulation to use? Contact us!?

The Best Way To Insulate A Pole Barn

While you’re weighing the pro’s and con’s of fiberglass, spray foam, bubble and Prodex, we’ll let you in on our professional advice: Use Prodex!

What makes Prodex so special? It can truly make a difference in changing the environment of your pole barn.


  • Resists condensation
  • Resists heat transfer
  • Ensures adequate air transfer
  • Deadens sound
  • Acts as a vapor barrier
  • Prevents mold and mildew
  • Blocks rodents, bugs and birds
  • Installs easily

Whether you are working with a new construction or retrofitting, there’s a Prodex product that will work for you.

The most common types of Prodex for pole barn insulation are:

Each of these Prodex types have similar features. They have a closed-cell polyethylene foam center and reflective reinforced foil on at least one side.

The Fast Action Prodex has an adhesive to seal the seams, which can help you save on effort and installation time.

Prodex Total 10M Plus is also an option for your pole barn. It’s constructed of a thicker foam center, which makes it very stable and durable. When you use it for insulation, the rolls can overlap due to the cuts on the edges.

White Prodex provides a white-facing effect, while the Rustic variety gives the interior a wood look.

Want to try Prodex? Request a quote!

How To Insulate A Pole Barn With Prodex: Equipment Checklist

Already decided on Prodex? Congratulations! You will benefit from a fast and easy installation process and a short and concise equipment list.

To insulate your pole barn with Prodex, you will need:

  • Reflective tape
  • Double-sided tape
  • A staple or screw gun
  • A utility knife

The reflective tape can be used to seal seams to create a vapor barrier.

The double sided tape can be used to hold the insulation in place during install and keep it safe from the wind.

To cut pieces of insulation, use your utility knife and fasten them with the help of the screw gun.

How To Insulate A Pole Barn With Prodex

By hiring professionals, you can ensure your insulation is installed properly from start to finish. But if you want to install Prodex on your own, you can follow our step-by-step guide for both new construction and retrofitting applications.

New Constructions: Roof/Wall Insulation Over Purlins

Recommended Prodex type: 48 Inch, Fast Action, 10M, 72 Inch, White, Rustic

Alternative insulation: Reflective bubble reflective or foil fiberglass vinyl

Prodex insulation on new construction over purlins
  • Put double-sided tape on the top of the framing to keep the insulation in place against wind.
  • Roll the insulation perpendicular to and over the frames.
  • Push the insulation in to create an air gap of a minimum 2 inches. This air space will act as an additional insulation layer and add to better efficiency. Note that if you are using two layers of insulation, your air gap should be bigger to maximize performance.
  • Tape seams with reflective tape.
  • If you want to avoid taping, use 10M or Prodex Fast Action.
  • Attach your sheeting.

New Constructions: Roof/Wall Insulation With Two Layers Of Prodex

Recommended Prodex type: 48 Inch, Fast Action, 10M, 72 Inch, White, Rustic

  • Use double-sided tape to keep the insulation in place.
Prodex insulation on new constructions – 2 layers
  • Attach the insulation perpendicular to and over the frames.
  • Use reflective tape to bind seams.
  • Take advantage of 10M or Prodex Fast Action’s adhesive line if you want to avoid the taping process.
  • Fix your sheeting.
  • Screw the insulation to the underside of the purlins with wide-head screws every 3-4 feet.
  • Run the insulation perpendicular to the purlins — a 72 inch or 48-inch-wide roll will work regardless of the width between your purlins.

Retrofitting: Roof/Wall Insulation With Or Without Existing Insulation

Recommended Prodex type: 48 Inch, Fast Action, 10M, White, Rustic or 72 Inch

Alternative insulation: Reflective bubble reflective or foil fiberglass vinyl

  • Screw the insulation to the underside of the purlins.
  • Reinforce it every 3-4 feet with wide-head screws.
  • Run the insulation roll perpendicular to the purlins; therefore, it will fit any width.
Prodex insulation on retrofitting – with or without existing insulation
Prodex insulation on retrofitting – with existing insulation

Retrofitting: Roof/Wall Insulation Between Girts (one or two layers)

Recommended Prodex type: 10M, 48 Inch, Fast Action, 24 Inch, 16 Inch, White or Rustic

  • Screw the insulation between the frames.
  • Leave an air gap a minimum of 1 inch between the insulation and the sheeting to optimize performance.
Prodex insulation for retrofitting between girts
Prodex insulation for retrofitting between girts – 2 layers

Pole Barn Insulation Tips

Ready to begin the installation process?

Whether you choose fiberglass, spray foam or Prodex for insulating your pole barn, our tips will help give you more confidence to approach the process. Here are our top tips to keep in mind for your project:

  • Plan your pole barn insulation in the design phase. Remember that well-engineered walls facilitate insulation. Use columns that are placed 8 to 10 feet apart instead of the typical 2 feet with stud wall systems. Eliminate obstructions that might hinder insulation performance.
  • Choose your insulation based on the use of your pole barn. Do you use it for storage, work, recreation, to house animals or something else? Keep weather conditions in your location in mind as well.
  • If you are using your pole barn for animals, consider roof insulation instead of wall insulation. Animals generate a lot of heat and additional humidity, and heat is lost largely through the roof of a structure. Focusing on decreasing moisture and keeping the pole barn cool may be a worthwhile investment to make sure your animals are comfortable, safe and living in a healthy environment.
  • Insulating the roof of your structure can also help ensure the temperature inside does not reach the dew point, which will prevent condensation and its consequences – mold and mildew.

What You Can Expect At Insulation4Less

At Insulation4Less, we have processed over one million orders, totaling more than four billion square feet of insulation. We can help guide you through your project and help you choose the best type of insulation for the results you expect.

Our experts have more than 18 years of experience in the industry and know insulation inside and out. Whether your project involves a pole barn, metal building, home or other structure, we have the exact product you need, ready and waiting.

With Insulation4Less, you can expect:

  • Same day shipping
  • Expert advice and guidance
  • The best price on the highest quality insulation

Get access to our best deals on insulation, tape and glue products, and we’ll serve as your one-stop shop for your insulation project. Contact our experts to get started!

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