LAYER NAME: Wind zonesABSTRACT : Wind zones used for building rules within Porirua City.SOURCE DATE: July 2005SUPPLIER: Terralink LtdCAPTURE METHOD: This data was converted into a digital format by Terralink Ltd based on consultant model. Where the Wind Zone lines coincided with the property the original DCDB boundary was used.POSITIONAL ACCURACY: Unknown. Indicative in the absence of engineers report.CUSTODIAN/CONTACT: Manager Building ComplianceOWNERSHIP: Porirua City CouncilACCURACY STATEMENT: NOTE: Extremely high category absent.UPDATE FREQUENCY: As requiredCOMMENTS: The wind zone in which a structure is located determines consent structural requirements (New Zealand Building Code - NZBC B1 -Structure) and weather tight requirements (NZBC E2 - External Moisture). This layer relates to NZS3604:1990 Section 2.6 and hence uses AS/NZS 1170.2 wind loads/speed categoriesCOMPLETENESS: Incomplete coverage area.KEYWORDS: NZS3604:1990, Building, Wind, Zoning, Windzones
