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R-Value (Insulation not Inelastic Response) of LW Concrete

R-Value (Insulation not Inelastic Response) of LW Concrete

R-Value (Insulation not Inelastic Response) of LW Concrete

(OP)
Does anyone know where I could get an idea for what the insulation coefficient "R" of a 6 1/4" total thickness (including deck) LW concrete slab on 3" metal deck would be?  

RE: R-Value (Insulation not Inelastic Response) of LW Concrete

You might also check the Heat Transfer & Thermodynamics forum and the HVAC/R forum.

RE: R-Value (Insulation not Inelastic Response) of LW Concrete

WillisV...are you looking for lightweight insulating concrete or lightweight structural concrete?

For lightweight insulating concrete, the R-value is about 1.1 per inch of thickness.

For lightweight structural concrete, the R-value is about 0.2 per inch of thickness.

RE: R-Value (Insulation not Inelastic Response) of LW Concrete

(OP)
Ron - true structural lightweight - not Perlite or anything like that - the 0.2 value was in line with what I would expect.  Thanks!

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