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Comparing Insulation Types

Is The Best Insulation Type Moldy Fiberglass, Rigid Board, Wet Cellulose, Toxic Spray, Collapsing Bubbles or Prodex Total?

moldy fiberglass insulation rigid foam board insulation cellulose insulation on floor
spray foam insulation being installed reflective bubble reflective insulation  

chart compares Prodex Insulation to rigid insulation board, fiberglass, cellulose, spray foam...

Foam insulation Board that's Rigid

Foam insulation board is rigid. Because it is not flexible, it does a poor job filling the gaps or cracks that may exist in your walls. As a result, you'll have air passage ways in and out of your home.  Air traveling in an out will bring moisture with it. This can lead to a multitude of problems such as mold, mildew and rot. It also doesn't prevent radiant heat transfer.

Moldy Fiberglass Insulation 

Moisture build-up between fiberglass and the building's exterior cannot evaporate, therefore mold, mildew and decay occurs. Warnings on the insulation rolls advise you to completely protect yourself from coming into any contact with fiberglass. Batts do not seal wall and ceiling cavities tightly. Fiberglass insulation R-value is reduced by thermal bridging, pinching and moisture.

Wet Cellulose Insulation

Moisture absorption makes it heavier, causing it to lose R-value. It is prone to create too much dust that is blown into the house through small cracks or holes around fixtures. It can be a health problem. 

Toxic Spray Foam Insulation

 If you need to wear a special suite to install, it must not be very safe. This chemical insulation agent (polyurethane and isocyanine) contains hazardous chemicals such as benzene and toluene. It won't prevent radiant heat transfer (the primary source of heat-flow in and out of a structure).  

Collapsing Bubble Insulation 

Bubble insulations are composed of either one (single bubble) or two (double bubble) layers of air bubbles sandwiched between two metalized surfaces. Once either is punctured, it collapses. Single bubble has a nominal thickness of 5/32 inch. Double bubble measures 5/16 inch. These measurements bear little resemblance to the effective measurement of the products. We see little difference between the performance of single and double bubble insulation. The latter simply has a second layer of air bubbles (A balloon with more air). Although we strongly recommend Prodex Total over either, if your budget doesn't allow you to purchase the quality of Prodex, we suggest you order single bubble insulation rather than a double bubble. You'll get virtually all the benefits of the double bubble while saving money. We do not offer double bubble because we aren't able to justify its pricing relative to Prodex Total and single bubble. 

Prodex Total Reflective Insulation (The standard bearer of the reflective insulation industry) - reduces the transfer of heat across air space by the use of two surfaces having high thermal reflectance and low emittance. This thermal insulation uses closed cell foam plus two aluminum surfaces and trapped airspaces to form an efficient insulation system. ICC-ES Recognized, the R-value of reflective insulation and mass insulation is based on the same fundamental equation (The ability to stop heat transfer). 

Prodex Total = Insulation + Radiant Barrier Vapor Barrier + Air Barrier

All in One Product!

Comparson Articles 

What Makes Prodex Total The Best Type of Insulation?

  • R-value unaffected by humidity
  • Prevents 97% of radiant heat transfer
  • Vapor barrier
  • Air barrier
  • Prevents condensation1
  • Does not promote mold or mildew
  • Does not provide for nesting of rodents, bugs or birds
  • Seals around nails (no leak)
  • Green Product Certified  

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Updated June 19, 2019 

Comparing Insulation Types in Metal Buildings and Roofs, Pole Barns, Walls, Basements and Crawlspaces

Condensation, Heat and Cold

  • Condensation - It can seem like a tropical rain forest inside an unprotected metal building or under a metal roof. A temperature difference between outside and inside your building will create condensation (dripping on the sheeting) - Similar to what happens when you leave a cold can of beer outside on a hot day. 
  • Heat - The sun's rays on a metal surface transfers radiant heat inside making it unbearably hot and humid under the roof during summer months.
  • Cold - Winter temperatures on the metal sheeting turns the sheeting cold. The cold sheeting creates the effect of an ice box making colder inside the building than out.

Once fiberglass insulation gets wet (and it will get wet due to condensation in a metal building) it will lose R-value. Neither fiberglass, insulation board or spray foam will prevent radiant heat transfer (the primary source of heat-flow in and out of your building).

Prodex Total Insulation is by far the best metal building, roof and pole barn insulation -  It is the one solution for cold, heat and condensation under metal sheeting.

Fiberglass and Cellulose Allows Air Infiltration Through Walls

Air Infiltration - Air sealing and moisture control make a building more comfortable inside and save energy by making insulation more effective. A significant amount of moisture enters the walls through air leaks and capillary action from ground water below. When installed over the studs Prodex Total will act as an air infiltration barrier thereby sealing the wall to reduce heat loss from expanding warm air and prevent water vapor in the air from entering the wall cavity. Fiberglass and cellulose with a stated R-value of 25 placed in an improperly sealed house will allow wind to blow through it as if there were no insulation at all. The US Department of Energy estimate that in a 100 sq. ft. wall, one cup of water can diffuse through the drywall without a vapor barrier in a year, but 50 cups can enter through a 1/2 -inch round hole. Sealing air leaks is estimated at 10 to 100 times more important that installing a vapor barrier.

Prevent Moisture, Mold and Mildew In Basements and Crawlspaces

Due to the underground environment, moisture is the primary consideration in developing  a basement wall and crawlspace insulation strategy. Moisture problems in basement walls and crawlspaces have lead experts to recommend against using fiberglass insulation in basement walls and crawlspaces. The old standard installation of fiberglass batt insulation between framed stud walls on the basement interior with a vapor barrier over the studs is no longer recommended because of excessive problems with mold, mildew, decay and rot. To maintain its effectiveness, fiberglass must not be exposed to high-moisture conditions such as a damp basement. Moisture will negate the insulation R-value of fiberglass insulation and promote mold and mildew - This degrades indoor air quality. 

The underground environment of basements and crawlspaces present unique challenges. The moisture content in soil below three feet deep is almost always higher than the moisture content of the air inside. This difference in vapor pressure causes moisture to be driven from the soil into the basement or crawlspace interior by diffusion through the walls.

 A significant amount of moisture from the soil below the slab will wick upward into the crawl space. Underground soil temperatures can be much colder than either the outside air or the indoor air. The warmer air in the basement constantly expands. When this warm air reaches the cooler surface of a wall next to the ground, condensation will occur on the interior of the wall. Any insulation in your crawl space will be subject to potentially large amounts of moisture driven from both the exterior and the interior depending on the season.

Wow, that's a lot to digest, so I will summarize. The best insulation type will protect you from heat, cold, humidity, wind and water. The standard bearer of the reflective insulation industry, Prodex Total insulation, meets all these requirements.  

 Prodex Total Reflective Insulation 

prodex insulation cross section

New Prodex Total 5M Insulation PlusR 17.  One solution to Heat, Cold and Condensation -  No other insulation protects you from these three conditions like Prodex Total. 5mm (0.2") closed cell polyethylene foam covered on both sides with reflective reinforced foil.

prodex insulation cross sectionNew Prodex Total White Plus - R 15.35mm (0.2") closed cell polyethylene foam with reflective reinforced foilon one side and plastic white finish film on the other side.  


Prodex Total 10M New TagNew Prodex 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.

A must have metal building insulation. Any metal building or pole barn that uses fiberglass insulation rather than Prodex Total will have moisture issues (typically hidden behind facing), Loss of R-value (consequence of the moisture) and heat gain.  


5 Reasons To Buy Prodex Total Insulation

  1. Independent reviews at Site Jabber. Site Jabber is the leading community of online business reviewers. The community helps consumers find great online business and avoid scams. The community has grown to over 850,000 members and has reviewed over 58,000 online businesses. Site Jabber was developed in part with a grant from the National Science Foundation.
  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. Prodex Insulation Reviews on every product page
  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 4 billion square feet sold worldwide.

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