Wind classification, climate zone and overlays in Tallawong
Most housing lots in this part of north west Sydney are designed to a wind classification of around N2 under AS 4055, which sets the bracing and tie down your frame needs, and sit in National Construction Code climate zone 6. Your engineering and energy report state the actual values for your lot. Some lots near creek lines and remaining bushland can carry flood or bush fire mapping, which adds construction requirements under AS 3959. Check the planning certificate for your lot rather than relying on the suburb as a whole.
Wind class drives the bracing and tie down shown on your frame drawings.
N2 is typical for suburban lots here, but your engineering is the authority.
Climate zone 6 sets insulation and glazing in the energy report.
Bush fire prone mapping applies lot by lot, triggering AS 3959 where it does.
Your section 10.7 planning certificate lists flood and bush fire affectation.
More about Tallawong
- Building a new home in Tallawong NSW
- Buying a house or townhouse in Tallawong NSW
- Growth and development in Tallawong NSW
- Approvals, Blacktown Council and building disputes in Tallawong
- Soil, slabs and cracking in Tallawong NSW
- Termite risk for Tallawong homes
- Common building defects in Tallawong homes
Written by our local inspection team from work carried out in Tallawong. Licensed building practitioners, NSW Fair Trading licence 366177C.
