All Insulation Types Have Parameters To Their R-value Testing
Pitchmen for competing insulation types make a big deal about the air-gap required for a reflective insulation to achieve its optimal R-value. They fail to tell you that an air-gap doesn't improve their R-value. They also fail to tell you the parameters of the testing used to achieve their stated R-value. Since they won't tell you, I will.
Is the Stated R-value for Fiberglass and Cellulose Insulation Accurate?
Only in an environment of zero humidity and zero wind. The parameters of the R-value test for fiberglass and cellulose insulation involves no moisture or wind. You might be saying, "That's ridiculous. That can't be. Those aren't the conditions of my home or building."
Even in the desert there is humidity. All buildings and houses leak air and water. Water vapor from the atmosphere, showers, cooking and even breathing move back and forth through the walls and ceiling. Those of you in humid areas may lose half of your R-value with fiberglass or cellulose insulation.
Fiberglass is assigned an R-value of 3 to 3.5 per inch. Remember it will only achieve this number in a zero moisture and zero wind environment. Fiber insulation placed in an improperly sealed house will allow wind to blow through it as if there were no insulation at all. In the event of flooding the R-value goes to zero. Even small amounts of moisture will cause a dramatic drop in fiberglass and cellulose insulation's R-value.
History or Reflective Insulation
Reflective insulation is a commercial spinoff of the NASA Apollo Space Program. NASA used a reflective foil covering to create a radiant barrier for both the spacecraft and space suits to reflect the intense heat of the suns away from the astronauts by day and to reflect internal heat back inside the capsule of space suit at night for warmth. NASA estimates that "Using conventional insulation, a space suit would have required a 7-foot-thick protective layer." Prodex improved on this technology to consumers for all types of building applications.
Today, reflective insulation has become a standard component of a total insulation system. It's designed for both new construction and retrofits. Using reflective insulation for either your house or metal building will increase the comfort level inside, protect against condensation and save on energy costs.
Uses: metal buildings (voted best), pole barns, under concrete, walls, roofs, attics, ducts, crawlspace, house-wrap,shipping containers, garages, ceilings, basements...
Prodex Total Reflective Insulation is the standard bearer in the reflective insulation industry: Insulation + radiant barrier + vapor barrier ALL in one product.
I've been in the industry since 2002 and I must admit that for a couple years I didn't completely understand all aspects of this unique and versatile product. It's no wonder many are confused. Hopefully this article has helped you better understand reflective insulation and other insulation types - Facts vs. Fiction.
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