[Bldg-sim] Cooling Degree-Days For Jamaica

Paul A. Hay phcjam at yahoo.com
Fri Nov 3 18:30:04 PDT 2023

I am in the process of revising the Jamaica Energy Conservation Code and 
would appreciate any advise on the captioned matter.

Jamaica's current building code classifies it as being in zone 1 of the 
International Energy Conservation Code (IECC): which is equivalent to 
the classification for Puerto Rico, U.S.Virgin Islands, and Hawaii.  
However the 2021 IECC has introduced a new climatic zone '0' for 
extremely hot climates.  The previously mentioned islands have retained 
the zone 1 classification.  So we wish to confirm whether the same 
applies to Jamaica.

Based on the 2021 IECC definitions, their climate zones are dependent on 
the range of cooling degree-days (CDD) above 10 degrees Celsius (C), as 

*Zone   Cooling Degree Days > 10 deg. C*

*0 *CDD> 6,000

*1 *5,000 < CDD < 6,000

Jamaica's current code simply describes it's capital,Kingston, as having 
cooling degree-days above 18 deg. C. that is greater than 3,235.  Could 
any of you advise where I could find Jamaica's cooling degree days above 
10 deg. C., so that a decision can be made as to which climate zone is 
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