IES-VE User Forum

Hello,

I'm very confused as to what the Construction Database mean by "solid ground-contact floor (not an exposed floor)" and "ground-contact wall (not an external wall)". These two are the options that one can select under the categories of Ground and External Wall, respectively. The User Guide doesn't really explain what these mean.

If we are creating a construction under the category "ground" instead of "ceiling/floor" doesn't that already mean that the construction is ground-contacting? Under what circumstance would you NOT check/tick "solid ground-contact"?

And for "ground contact wall (not an external wall)", this is an option inside "External Wall" so under what circumstance would you actually select this option?

I'm doing simulation for some non-engineered buildings that doesn't have any floor per se; the floor is just the ground/earth itself without any insulation. In this case, would I need to check "solid ground-contact floor" for my ground, and "ground-contact wall" for my external walls and adjust the U-Value?

Also I'm not doing any compliance testing, so do I need to worry about these options?

Any suggestions would be appreciated!!!

thank you!

Hi,

I think these are for the rooms below ground, i.e. at the basement levels. They are in contact with the ground but are not exposed.

Xye

XYE wrote:Hi,

I think these are for the rooms below ground, i.e. at the basement levels. They are in contact with the ground but are not exposed.

Xye

Thanks!
That makes so much sense!
But still can someone explain how exactly does IES calculate the adjusted U-values for solid ground-contact floors? esp. how it adjusted the thickness + the final U-value (as they are different than what using CIBSE method would get...)

Thanks very much!