Section J Assessments

Section J Assessments

Section J of the National Construction Code (NCC) applies to new work conducted on buildings in classes 2 to 9, including Childcare Centres, Offices, Shops, Medical centres, just to name a few. There are generally 2 options to meet compliance. A DIY Assessment, this method uses a BCA glazing calculator which determines glazing values required once orientation, shading and frame material has been nominated. The assessment then also considers the wall material, floor material and ceiling material as seperate items. These materials are evaluated against the tables for compliance in the BCA for the type of building and climate zone. Often this type of assessment requires improved glazing. An alternative is to consider conducting a JV3 Assessment. This method of assessment uses an approved software that evaluates the whole building which allows certain areas to compensate for other areas that may not be performing as well as others i.e. windows. The DIY Assessment is still required and is used to show the JV3 as an improved performance to meet the requirements of a JV3 Alternative Assessment under the BCA. In the majority of cases the JV3 Assessment delivers a much better glazing result and the additional cost is normally well below the cost of improved glazing.


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