Hi,
I am using design database for heatloss calculations for a student accommodation. I am querying the results of the heatloss calculations as it returning results of between 30-40 w/m2, when we would expect to see a heatloss of around 60-70 w/m2.
Below is the data that I am using.
Wall Height 2.7m
Partition Height 2.4m
Ceiling Void 0.2 m
Window 1m2
Building set in Edinburgh with design temp of -5
I am still awaiting U-values from the architect but as a default I have been using the maximum u-values for building elements from section 6.
Wall 0.27 w/m2K
Floor 0.22 w/m2k
Roof 0.2 w/m2k
Windows,doors, windows and roof lights 2.0 w/m2k.
The floor area of a typical room is 15m2 and the building is 2 storeys high, with exposed floors and roofs set up. Does 30-40 w/m2 appropriate using the values that I have used? I can submit the model if required.
Thanks in advance,
Andrew