Pole Barn Insulation

pole barn with Prodex reflective insulation installed

9 Things Pole Barn Insulation Should Do



  1. Prevent Condensation 
  2. Stop Heat Transfer
  3. Stop Air flow
  4. Deaden Sound of Rain and Hail
  5. Not Support Rodents, Bugs or Birds
  6. Install Easily
  7. Vapor Barrier
  8. Not Promote Mold or Mildew
  9. Not Leak

1. Prevent Condensation 

It can seem like a tropical rain forest inside an unprotected pole barn. It's worse on those days where there is a greater contrast between temperatures at night vs. day. The morning sun hitting the cool sheeting will create a drip. A temperature difference between outside and inside your building creates condensation - Similar to what happens when you leave a cold can of beer outside on a hot day.  

condensation in metal building

Prodex, the best pole barn roof insulation, eliminates moisture (condensation) from forming on the roof sheeting. It does it by making the temperature of the metal sheeting on the building approximately the same on the inside as the outside. When the heat or cold from outside comes through the metal skin it hits the outside aluminum facing of Prodex and is reflected back upwards through the underside of the metal sheeting. This process keeps the metal sheeting temperature consistent on both sides. In addition, the inside layer of aluminum in Prodex reflects away the heat (heater) or cold (air-conditioning) from inside the building, from getting to the metal skin. This also helps in preventing condensation

2. Stop Heat Transfer in and out

  • Heat - Mid-summer sun rays hitting the metal sheeting radiates downward (inside). It makes it unbearably hot and humid inside.
  • Cold - Winter temperatures turn metal sheeting cold. The cold sheeting creates the effect of an ice box making it colder inside the building than out. This also adds to the condensation problem.

R-value is the measurement of a material's ability to stop heat transfer. If two products have the same R-value, they have the same efficiency in stopping heat transfer.

I thought I had a Higher R-value - Pole Barn Insulation Blankets Lose R-value

Once metal sheeting gets cold it creates a situation where it's colder inside the building that out. To combat this you need an insulation that doesn't lose its thermal protection when you need it most! 

The Prodex R-value is not affected by humidity. Pole barn insulation blankets (fiberglass), lose R-value once damp (and it will get damp in a pole building). Once fiberglass insulation gets damp, it will stay damp. Not only will you have trapped moisture in the blanket causing rot, rust, oxidation, mold etc., the damp blanket will provide less and less R value as the moisture builds. Couple this with the fact that fiberglass insulation does not prevent radiant heat transfer (primary source of heat flow) and you can see why fiberglass insulation is not the recommended insulation for pole barns. 

Ever wonder why it's so hot and wet inside a pole building in the summer and so cold and wet in winter? The metal skin magnifies the heat of the summer sun and frigid temperatures of the winter. Metal is a very good conductor of heat and cold. In hot weather, metal framing and sheeting rapidly radiate the sun's heat into a building. In cold weather it rapidly releases the heat out of your building. When warm air comes in contact with the cool metal sheet, condensation occurs. 

Prodex reflects 97% of the radiant energy (primary source of heat flow) that strikes it - Which also protects your animals from Black Globe Effect. Prodex also reflects back the heat inside your pole barn. Each unit of radiant heat energy that is reflected away from your barn in the summer, and each unit that is reflected back during the winter, means less operation of your heating and air conditioning system - Less wear and tear on your equipment - Less money you pay in utility costs.

3. Air Barrier 

Prodex Logo Air Barrier Featured

Air flow carries moisture that impacts the temperature and integrity of the building. Air-flow affects a building's behavior in fire (spread of toxic smoke and gasses). Air barriers also separate garages from conditioned spaces. In this case an air barrier would also serve as a "gas barrier" an obvious safety feature. Prodex Total is an air barrier.

4. Deaden Sound of Rain and Hail

The metal skin on a pole building can exaggerate the sound of rain and hail. Prodex Total has excellent sound deadening.

5. Not Support Rodents, Bugs and Birds

Unlike fiberglass insulation, Prodex Total does not provide for the nesting of rodents, bugs and birds. Rodents, bugs and birds aren't able to digest the foil.

6. Install Easily

It's a lot easier and less expensive to install a roll of Prodex than a bulky 6 inch roll of fiberglass. Pinching 6 inches fiberglass between the framing and sheeting is not easy. Prodex Total can be installed before or after your metal sheeting. For fastest and easiest installation, install before applying your sheeting. Installing pole barn insulation

7. Vapor Barrier

Prodex is a class 1 vapor barrier. A vapor barrier (moisture barrier) refers to any material that prevents moisture from passing through the walls or roof of a building. This material can be plastic or better yet, Prodex Total Insulation - closed cell polyethylene foam and reflective reinforced foil facing. Prodex Total Insulation (Vapor Barrier, Class 1. perm<0.1 ).

8. Not Promote Mold Or Mildew

Prodex Total Does not support mold or mildew. 

9. Not Leak


Prodex Total seals around nails and screws.

Insulating A Pole Barn - How To Insulate A Pole Barn Before and After Sheeting

installation instructions for pole barn new

Roof/Wall (New Install) Over Purlins: Use Prodex 48 InchFast Action10M72 InchWhite or Rustic

  1. Apply double sided tape on the top of the framing (helps keep the insulation from blowing in the wind).
  2. Roll insulation perpendicular to and over the frames.
  3. To improve performance, push insulation in to create air-gap of at least 2 inches. 
  4. Tape seams with reflective tape or use 10M or Prodex Fast Action to avoid seam tape.
  5. Attach your sheeting
Installing insulation in pole barn after sheeting - retrofit

How to Insulate an Existing Pole Barn

Roof/Wall Install After Sheeting is Attached: Use Prodex 48 InchFast Action72 Inch10MWhite  or RusticScrew or glue (super metal sealant) insulation to underside of purlins. If gluing, reinforce with wide-head screw every 3-4 feet. Run the insulation perpendicular the purlins - That way a 48 Inch wide roll will work regardless of the width between your purlins.



Pole Barn Insulation for Sale 

prodex insulation cross sectionProdex Total 5M Plus R 17. 5mm (0.2") closed cell polyethylene foam covered on both sides with reflective reinforced foil facing. 

prodex insulation cross section

White Prodex Total 5M PlusR15.3. 5mm (0.2") closed cell polyethylene foam with reflective reinforced foil facing on one side and plastic white finish film on the other side.                               

 Prodex Total 10M New TagProdex Total 10M Plus - R22. Twice as thick as regular Prodex Total.  10mm (0.4") closed cell polyethylene foam covered on both sides with reflective reinforced foil facing.


Roll Sizes 

Pole Barn Insulation Pricing | Buy Pole Barn Insulation

  • Roll Pricing on every product page
  • Shipping calculator on every page in blue bar
  • For Discount volume pricing or to buy click the "Order Here or Get A Quote" button 

metal building insulation prices 

Compare Prodex Total to Bubble, Spray and Fiberglass

chart comparing pole barn insulations

Bubble Air Issues

     Foil Only              Single Bubble       Double Bubble    Prodex Total 5M 

Foil Only Radiant Barriersingle bubble - radiant bubble foilDouble bubble insulationProdex Total Insulation cross sections

Take a look at the photos above. Even if you didn't know anything about double bubble insulation or Prodex Total, which would you choose? The obvious choice is Prodex Total. It has a high quality core that keeps its shape when exposed to forces. Prodex Total 5M plus has a nominal thickness of 5mm (0.2"). Prodex Total 10M is 10mm (0.4"). Both are closed cell polyethelene foam covered on both sides with reflective reinforced foil facing. 

Under pressure, the Prodex micro-cells do not collapse -- With a pressure of 6 PSI Prodex compresses just 6%. When the load is relieved it takes back its initial shape. The density of the foam is between 1.25 lb/ft (sq) - 1.87/ft (sq). This gives the material real body.

Because Bubble insulation has a core composed of air rather than closed cell polyethelene foam, it lacks the long-term consistence in performance of Prodex Total.

Fiberglass Moisture Issues

If you use fiberglass as your pole building or metal building insulation, you will have moisture issues (hidden behind facing), Loss of R-value (consequence of the moisture b) and heat gain from radiant heat transfer.  

Once fiberglass insulation gets wet (and it will get wet, due to condensation) it will lose R-value! Water trapped between fiberglass insulation and the exterior of a building will also cause mold, fungus growth, rust and oxidation - Conditions that will degrade the metal and shorten the service of the structure. In addition, fiberglass insulation does not prevent radiant heat transfer (the primary source of heat-flow in and outside your building).

Take a look at the white vinyl facing the next time you're in a pole barn - It will be either sagging, or sagging and flaking. This is due to the added weight of water. Behind the white vinyl is a wet, mold filled blanket that will eventually cause the white vinyl to crack and fall off. At some point, when you're exposed to the toxic fibers, you'll be forced to remove the insulation - Hopefully before it does too much damage to the metal framing. If you insist on using fiberglass, use it in conjunction with Prodex Total, so the Prodex can keep the moisture out of the fiberglass.

Spray Foam Insulation Won't Stop Radiant Heat Transfer

In addition to being very expensive, spray foam insulation won't prevent radiant heat transfer (the primary source of heat-flow in and out of your metal building). Without a radiant barrier, when your roof gets hot it radiates solar-generated heat down. This often results in it being hotter in your building or house than out. It's also suggested you supplement open cell foam with a vapor barrier. Why not get the vapor barrier all in one product? 

Confidence It's The Best Pole Barn Insulation

  1. Independent Prodex Insulation Reviews at Site Jabber. Site Jabber is the leading community of online business reviewers. Unlike most review sites, only customers are allowed to post on this reputable site. 
  2. BBB report. For over 100 years, BBB has set the standard for ethical business behavior. We're proud to maintain an "A to A+" rating. This rating takes into account a company's size in its relation to complaints. We're proud to maintain an "A to A+" rating. We've been accredited since March 15, 2004.
  3. Reviews by actual customers on product pages. 
  4. ICC-ES Recognized - ICC-ES is an evaluation service that takes independent test data for a variety of products and analyses it against a uniform Acceptance Criteria that is recognized internationally. 
  5. Over a million orders totaling more than 4 billion square feet of insulation sold.

Insulation4Less Reviews - Many review sites are pay to play :(

Features of The Best Pole Barn Insulation

  • R-unaffected by humidity
  • Prevents radiant heat transfer
  • Vapor barrier
  • Prevents condensation
  • Does not promote mold or mildew
  • Does not provide for nesting of rodents, bugs or birds
  • Seals around nails (no leak)
  • Made with 100% recyclable virgin raw materials. 

Insulation + Radiant Barrier Vapor Barrier + Air Barrier

All in One Product

One solution to Cold, Heat and Condensation - You'll be warm in winter, cool in summer and dry all the time.



Updated February 27, 2020


  Customer Reviews

rugerr: Wednesday, January 05, 2011

The product is very easy to work with, it went up with no problems. I insulated the walls on our 30x40x14 polebarn up here in michigan. I did it all bymyself with no help, yes its that easy. Hugh difference in temp:-)!! 10-15 degrees F outside and 60degrees F on the floor and almost 90 Degrees F at the ceiling. I need to install some ceiling fans but other than that all is well. Andy( Thumb of Michigan)

For independent reviews - Visit Site Jabber


Prodex Insulation Reviews
848484: Tuesday, December 13, 2016
Been in the construction business for 38 yrs. After extensive research I made a decision to use Prodax total in a pole barn. Very challenging ceiling application from the inside attached to perlongs and truss sides between 4ft on center roof trusses. The side walls however went extremely well. Great product, does what they say it will do. The only problem I had was the fact that it had to be ordered on line, and couldn't be ordered over the phone .


Prodex Insulation Reviews
Lbernfield: Monday, February 20, 2017

We recently built a barn and chose to insulate it with Prodex. We are very impressed with its ability to insulate. It is the only insulation we used. Very easy to hang. No itchy mess like the ping fiberglass! Highly recommend this product

For independent reviews - Visit Site Jabber About us  Contact us

 Bookmark This Page - Add to Favorites Insulation 4 LESS - The #1 Insulation Site Insulation 4 LESS - The #1 Insulation Site
8801 Wallisville Road, Suite C, Houston TX 77029

 Product List (Full)                         Insulation4Less Reviews - SiteJabber, Inc. BBB Business Review




Official site of Prodex Total Insulation in USA and CAN © Copyright 2019, All Rights Reserved