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How is the U-factor estimated for insulation cases classified as 'None' or 'Uninsulated' within the ResStock tool, and what assumptions or default values are used in this estimation process?

Hi,

I was just curious to know how ResStock treats cases like 'Insulation Ceiling' with Option=None or Uninsulated. As defined in options_lookup.tsv, it was assumed for that case: ceiling_assembly_r=0 and ceiling_insulation_r=0. So, how the U-factor is estimated for such cases? I am looking to use buildstock generated by ResStock and its options_lookup.tsv for a different modeling tool.

Also, I was wondering if it is possible to reproduce the same buildstock as 2024.1 Release or 2022.1 Release.

Thanks,

How is the U-factor estimated for insulation cases classified as 'None' or 'Uninsulated' within the ResStock tool, and what assumptions or default values are used in this estimation process?

Hi,

I was just curious to know how ResStock treats cases like 'Insulation Ceiling' with Option=None or Uninsulated. As defined in options_lookup.tsv, it was assumed for that case: ceiling_assembly_r=0 and ceiling_insulation_r=0. So, how the U-factor is estimated for such cases? I am looking to use buildstock generated by ResStock and its options_lookup.tsv for a different modeling tool.

Also, I was wondering if it is possible to reproduce the same buildstock as 2024.1 Release or 2022.1 Release.

Thanks,