R-value- Page 3 of 3
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Is R-Value Dead as a Dodo?
The R-value of your insulation is just one number — and it’s not enough to tell you everything you need to know about your wall’s thermal performance
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FTC Cracking Down on False R-Value Claims
The federal government has fined a company selling ‘R-100 paint’
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Air Leakage Degrades the Thermal Performance of Walls
No surprises here — but testing by the Building Science Corporation begins to quantify the problem
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A Bold Attempt to Slay R-Value
A group of building science researchers is trying to invent a new metric for measuring the thermal performance of walls and ceilings
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Is There a Downside to Lumpy Attic Insulation?
If your attic insulation isn't raked smooth, its performance will suffer
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Air Leaks or Thermal Loss: What’s Worse?
Have we been brainwashed to consider only R-values?
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Energy-Efficient Garage Doors
Unfortunately, advertised R-values are meaningless
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How Much Insulation is Needed?
Standard residential construction in much of the country is 2x4 framing with fiberglass insulation, achieving a paltry R-10 or so in the walls. If insulation is installed at all on…
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Understanding R-Value
R-value measures heat transfer by conduction, convection, and radiation
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Beware of R-Value Crooks
Insulation scams for products like P2000 rob unwary consumers by exaggerating R-values
