Wind Zone codes for Porirua City for building codes.
When applying for a building consent, the wind zone in which a structure is located determines structural requirements (New Zealand Building Code - NZBC B1 - Structure) and weather tight requirements (NZBC E2 - External Moisture).
Codes for Wind Zones:
a = Specific Design (zone outside the scope of NZS3604:1990)
b = Very High Wind
c = High Wind,
d = Medium Wind,
e = Not Assessed/Unknown
Porirua City Council gives no warranty in relation to the data, including its accuracy, reliability and suitability and accepts no liability whatsoever in relation to any loss, damage or other costs relating to the use of any data, any compilations, derivative works or modifications of the data.