Reflective Resources Guide

Finally, there is a company that quotes those prepared–to–buy TODAY the TRUE WHOLESALE cost, charges modest fees, and GUARANTEES savings!

REFLECTIVE Insulation is best source to protect against radiant heat!

Most in the building industry would say the most popular insulation solution for decades for all types of buildings, whether residential, commercial, industrial or agricultural facilities, was to use fiberglass, or foam insulation. 

Well, this one-size-fits-all application has quickly changed! There is a quickly growing realization that to truly slow down conductive or convective heat transfer, one needs to look to other means than fiberglass, or foam insulation. Based on independent government studies, it is REFLECTIVE insulation that is well suited for slowing down radiant heat. Radiant heat can account for as much as 93% of heat transfer. Therefore, in most cases, it makes sense to use a radiant barrier in lieu of foam or fiberglass. Keep in mind, all insulation types have their justified building niche. That is why Factory Steel Overstock offers Fiberglass as well as Reflective insulation. But if you primarily want to reduce radiant heat transfer, reflective insulation is the way to go!

Factory Steel Overstock is the perfect resource to get Reflective insulation below market prices. If you want R-Value 15.3 to 22, we have it! Our High R-Value Reflective insulation is now our MOST popular choice for pole barns and metal buildings.

 You can estimate directly online by clicking ONLINE ESTIMATOR and SEE estimates immediately! You can request a custom insulation quote – guaranteed below competitors’ quotes – by clicking Insulation Quote Form.  In order to guarantee the lowest rates, Factory Steel Overstock exclusively quotes those willing to buy their insulation AFTER (same day) quoted savings. Therefore, your integrity, and preparedness to buy guarantees your savings!

Factory Steel Overstock’s Reflective Insulation

Our High R-Value Reflective Insulations (R – 15.3, 17, and 22) are not affected by humidity. This is a very important point! If there is humidity outside, there will be humidity inside your building. Your insulation must work efficiently in these conditions.

  • It is ICC-ES Recognized
  • R-Value unaffected by outside humidity
  • It prevents 97% of radiant transfer (the primary source of heat flow)
  • Is a vapor barrier
  • Prevents condensation
  • 19 dba contact noise reduction
  • 90 Celsius (194 F) contact temperature rating
  • UV resistance
  • Material does not allow mold or mildew
  • Does not provide for nesting or rodents, bugs or birds
  • Easy seals around nails (no leaks)
  • 100% recyclable virgin raw materials 
  • It surface keeps it airflow

Reflective R-17 Metal Building Insulation

This 5mm thick insulation comes in rolls 4′ x 175′  (700 sq ft).  It is lightweight and easy to install with already applied adhesive running down one side so no need to order the reflective tape.  This benefit saves time. Those erecting buildings have noted its ease of installation as well as a  50% time savings.

The reflective insulation product we offer our customers reflects the highest amount of radiant energy flow (97%) that strikes it.  It reflects back the heat inside the metal building in the winter and reflects the sun’s heat outward during the summer months.  All of this means less cost of your heating bill in the winter, as well as lower air conditioning expenses in the summer.


Reflective R-15.3 WHITE Vinyl- BACKED

Comparable in price to R-17 yet with the FRESH OPEN LOOK of the white vinyl backing many customers prefer in the interior of their metal building.  This 5mm thick insulation comes in rolls 4′ x 175′  (700 sq ft).

R-Value is slightly reduced in this product due to the replacement of one side of polyethylene backing and reflective reinforced foil with the ALTERNATIVE  UV resistant White Facer. 

Formal quotes will include double-sided tape for ease of installation. 

Our High R-Value 22 Reflective

It is twice as thick as regular reflective insulation (10 mm) closed cell polyethylene foam covered on both sides with .00012 inch (0.03mm) aluminum foil facing. Its advantage is its high R-value, yet it is light and very easy to install.  Rolls are 4′ x 85.3′ ( 341 sq ft)

One of the things that makes this product so special is that it has cuts at the edge to overlap the rolls. 

Use your own hot air gun to melt the polyethylene foam at both rolls, and with a little hand, pressure applied you have a  complete welding process for a totally impermeable overlapping and mechanical seal between installed rolls. 

Formal quotes will include double-sided tape for ease of installation. 

Installation Procedure

3 simple steps to install:

  1. Apply our double sided tape (included when you order) on the top of purlins.  Initially applying the tape will help secure insulation – and not allow it to blow in the wind.
  2. Roll insulation perpendicular to and over the purlins.   It would be wise to let insulation sag 1 to 3 inches. Then seal at seam according to type directions.
  3. Attach your sheeting.

Why do I need insulation?

An insulation R-value is the measurement of a material’s ability to stop heat and cold transfer.  No matter what a metal building’s usage, insulating it will be of value.  Because of the unique nature of a steel building, it requires a vapor barrier and radiant barrier.

  • The summer heat (sun’s ray) on a steel surface will create extreme heat temperatures inside the building.
  • In addition, the cold winter temperatures are exaggerated by the metal roof and wall sheeting making it frigid inside.  Warm temperatures coming in contact with cool metal roofs or walls create sweating (condensation).

All metal building insulation system requires some form of reflective insulation, radiant barrier and vapor barrier. It doesn’t take a rocket scientistic to know that the metal skin on a steel building causes sweating (condensation). In addition to this, it will cause unbearable heat in summer and frigid temperatures in winter. Therefore, you need a true vapor barrier and condensation eliminator! Some believe our reflective insulation is superior to fiberglass batt in steel buildings or pole barns because its R-value is unaffected by humidity or water. In a nutshell, this means it doesn’t mildew or promote fungus growth. Keep in mind, spray foam insulation is very expensive and not remotely as effective as reflective insulation regarding radiant heat transfer. The reason it is better than double bubble insulation is because the heat of the metal sheeting won’t cause the polyethylene micro-bubbles to collapse. There is a reflective aluminum foil on each side of a 5mm closed-cell polyethylene foam center. 

Do you know why the temperature fluctuates so much inside a metal building? Have you notice that the temperature can be unbearably hot in the summer and so frigid cold and wet in winter? Well, the metal skin itself magnifies the outside heat and cold! You see, metal is perfect conductor of heat and cold. In addition, when a cold surface comes in contact with warm air it creates moisture on the metal skin. Again, our reflective is a superior and complete vapor and radiant barrier!

Keep your metal building perfectly cool in the summer and warm in the winter! Best of all, do it with a price savings!