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TheRickles

(3,549 posts)

3. Yes, but most of that R-value is from the fiberglass insulation, not from the wood.

Reply to maxsolomon (Reply #2)

Fri May 22, 2026, 01:38 PM

May 22

Wood R's range from 0.7 to 1.4 (softwood to hardwood), so if hemp studs were used with similar insulation as in your counterexample, the R-value would be similar. And forests don't have to be cut down to produce hemp.

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Banned for 90 Years, This Building Material Returns With 15x Concrete's Insulation and Centuries of CO₂ Storage [View all] orangecrush May 22 OP

Nice! Hugin May 22 #1

Standard Concrete's insulation R-value is 0.08/inch. maxsolomon May 22 #2

Yes, but most of that R-value is from the fiberglass insulation, not from the wood. TheRickles May 22 #3

But the hempcrete is only being used as insulation, not as structure sl8 May 22 #4

Got it - thanks for clarifying. TheRickles May 22 #5

Good point. nt sl8 May 22 #6

Not my point. maxsolomon May 22 #7

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