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retired framer
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I agree that it is a personal choice but shouldn't there be a chart that shows the difference between R5 and R 10 compared to an un insulated floor. I have electric baseboards and believe me the heat goes up and it is cold air that run across the floor to feed it.
 

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I agree that it is a personal choice but shouldn't there be a chart that shows the difference between R5 and R 10 compared to an un insulated floor. I have electric baseboards and believe me the heat goes up and it is cold air that run across the floor to feed it.
Warm air from baseboard heaters goes up, but the air at the floor should be close to room temperature once the place is warmed up.

You can calculate floor heat loss though with different r-values.
Someone more knowledgeable than me could calculate floor surface temperature.

But what matters for comfort is heat loss from the feet, if they';re in the mid to high 90s and the slab is in the 60s, insulation will make the floor feel warmer.

But comfort is very subjective - everyone has different circulation.
 
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