Coefficient of Heat Transmission Ballast Example 16.1

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Yvette Louka

November 20, 2022 13:55

I am wondering why we did not convert the inches into feet?

Thank you

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  Rebekka O'Melia November 21, 2022 22:06

  Hi Yvette,

  Could you post a screenshot of the exam item please?

  Rebekka O'Melia, Registered Architect, NCARB, NOMA, B. Arch, M. Ed, Step UP ARE 5.0 Courses

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  Rebekka O'Melia November 22, 2022 14:18

  Hi Yvette,

  Sorry, I was thinking this was an NCARB practice exam question, even though you said Ballast.  You aren't supposed to reproduce any of their book, fyi.

  BTU are British Thermal Units based on ° fahrenheit and inches.  The R value are based on BTUs. And all the dimensions in this wall are in inches anyway.  You just convert to R values and add them all up to get the R-value of the wall assembly.

  Hope this helps!

  Rebekka O'Melia, Registered Architect, NCARB, NOMA, B. Arch, M. Ed, Step UP ARE 5.0 Courses

   

   

   

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