Some years ago the facade of an existing building was demolished. The facade was completely glazed.
The structure of the building (pillars, beams) was conserved.
A new completely glazed facade is designed.
Shall the facade of the baseline model be completely glazed?
Since the goal of the demolition was to refurbish the building, I would say that I could apply point f. of Table G3.1#5.
Regards
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
February 3, 2016 - 4:07 pm
If the existing facade is all glass then the baseline is all glass. You have the right citation.
Francesco Passerini
engineer90 thumbs up
February 5, 2016 - 6:47 am
Thank you, Marcus. What do you suggest, in order to estimate the thermal properties of the old facade? It was a curtain wall. I'm looking for old pictures in order to understand a little bit more about materials, windows and so on. It isn't easy...
Best Regards
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
February 5, 2016 - 3:18 pm
Sounds like you are trying to do some on-site investigation which is the best way to determine the actual assembly U-value. If that fails you are allowed to use the values in Table A8.2.