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JoeDirt

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Dafuk i know? You're the engineer. We still call it R, but our 6 is like your 50 (gross guessimization).
R-value and U-factor (called K-value in fizziks) and the two units of thermal conductivity that I'm aware of. They are inverses of each other. (1/R)=U and (1/U)=R.

When I worked at Lowe's we carried R-13, 15, 19, 21, 23, and 30. Most builder-grade houses get the R-13 and 15.
 

GCJenks204

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R-value and U-factor (called K-value in fizziks) and the two units of thermal conductivity that I'm aware of. They are inverses of each other. (1/R)=U and (1/U)=R.

When I worked at Lowe's we carried R-13, 15, 19, 21, 23, and 30. Most builder-grade houses get the R-13 and 15.
I’m pretty sure our new residential code is R24 wall assembly and R50 attic, with R16 in basement walls.
 

stihl livin

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Evening Richard’s. A week from today I get to start putting weight on my leg. I’m half way through the 6 weeks of this leg brace. Had to see a different pt person today and she had someone from orthotics and prosthetics make changes to my brace. Then he showed me where it should sit with the changes. No more brace slipping and moving when I stand up. Looking forward to being more independent.
 
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