Exterior lighting rules
Exterior lighting rules
Entering data...
- For each line, if Baseline > 0, then Proposed must also be > 0 (i.e. can't take credit for unlit surfaces). If Baseline >0 and Proposed = 0, then you will receive a warning message. (applies to both tradable &non-tradable). Likewise, if Proposed >0 and Baseline=0, you will receive a warning message.
- For each line of tradable surfaces, it is permissible for Baseline > Proposed, or Proposed > Baseline (as long as they are both non-zero values)
- For each line of non-tradable surfaces, it is permissible for Proposed>Baseline. However, if Proposed entry < Baseline, then Baseline value is adjusted to be equal to Proposed entry.
Calculating subtotals...
- For tradable surfaces, it is permissible for Baseline > Proposed, or Proposed > Baseline (as long as they are both non-zero values)
- For non-tradable surfaces, it is permissible for Proposed>Baseline. However, baseline cannot be greater than proposed, (this should not occur if rules above are followed)
Calculating grand total...
- Baseline grand total = 1.05 *(baseline tradable + baseline non-tradable) Note: (5% has been added to the total as per ASHRAE 90.1, Ch.9, Sec. 9.4.5)
- Proposed grand total = proposed tradable + proposed non-tradable* If Proposed grand total > Baseline grand total, then proposed exterior lighting design is non-compliant.
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