EXTERNAL WALL WEATHERPROOFING

Weatherproofing
risk assessment.

Select one category for each risk factor. Your scores are added automatically.

TABLE H2V1a · NCC 2022 or NCC 2025

Assessment details

Property addressProject no. (optional)Assessment completed by — nameRoleNCC edition

NCC 2022 uses Amendment 2. Select the edition applicable to the project; confirm with your building surveyor if unsure.

Risk factors and scores

0 of 6 selected

Table H2V1a. Select one category per risk factor. Scores are shown in each option.
Risk factor	Low	Medium	High	Very high	Selected score

Table notes

If a category does not cover your situation, leave it unanswered and seek advice. For example, the table does not expressly categorise eaves exactly 600 mm wide above two storeys.

Total risk score—All six factors required

ASSESSMENT INCOMPLETE

Complete the assessment details, NCC edition and all six risk factors.

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INCLUDED IN YOUR PRINTOUT

Conditions and limitations

Select an NCC edition to display the relevant conditions.

These conditions are explanatory. Printing them does not confirm they have been satisfied.

NCC sources and assessment notes

The national Table H2V1a categories, scores and notes are identical in the two editions checked. The other H2V1 requirements differ as set out above. No NSW or Victorian variation to H2V1 or its risk table was identified in those editions; project adoption and other requirements still need separate assessment.