# Radiant temperature - calculation point

Hi all,

I´m looking at comfort conditions in a space with a glazed roof and radiant cooling slab. The Zone is 6m high, so I was wondering which height in the space does the Radiant Temperature Calculation represent.

I had somehow assumed it would be the centroid, so 3m, but looking at the engineering manual it doesn´t seem 100% clear to me. I assume that the `Zone averaged MRT`

is the default method if nothing else is specified.

If the case above is correct, and results are reported for 3m high,

A. Is there a way to get the results for ZoneMeanRadiant/ZoneOperative temperatures at 1.1m high?

The manual refers to the mean radiant calculation in relation to thermal comfort models, but I don´t seem to find its relation to the `ZoneMeanRadiantTemperature, ZoneOperativeTemperature`

reporting variables.

B. Does anyone know where to define any of the three options: zone averaged, surface weighted or angle factor?

Thanks! Rafael

Does anyone know any lead to look into this? Thanks