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NZBC: Clause E1 — Surface Water

Objective

Safeguard people from injury or illness, and property from damage, caused by surface water

Functional Requirement

Buildings and sitework shall be constructed in a way that protects people and other property from the adverse effect of Surface Water.

Performance

Surface water from an event that has 10% probability of occurring annually that is collected or concentrated by buildings, shall be disposed of in a way that avoids damage or nuisance to other property.

Surface water resulting from an event with a 2% probability of occurring annually shall not enter buildings.

Clause: 
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Clause Number: 
5.1
5.1
/cop/roof-drainage/nzbc-clause-e1-surface-water
Revision Category: 
1 - Minor Errata
Revision Detail: 

Expanded performance requirement in accordance with E1– Surface Water.

Draft Clause: 
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