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    Fill our QLD Form 15's faster and easier with this tool
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    • Section J vs JV3
      This article explains the differences between
      Section J Reports and JV3's
    • Thermal Breaks in Residential Construction
      This article explains the new NCC 2022 thermal
      break and thermal bridging provisions
    Section J Report vs JV3
    This article explains the differences
    between Section J Reports and JV3's
    Thermal Breaks in Residential Construction
    This article explains the new NCC 2022 thermal
    break and thermal bridging provisions
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Section J vs JV3

What are this differences and how to choose the best one for your project.

Purpose?

A Section J report is a compliance report that demonstrates compliance with the energy efficiency requirements set out in the Building Code of Australia (BCA) Section J, while a JV3 report is an alternative verification method that allows for flexibility in meeting the same requirements.

Methodology

A Section J report uses a prescriptive approach that sets out specific requirements for various building elements such as walls, roofs, and glazing. This is a pass/ fail criteria per element, so it has no flexibility. If you fail one part you fail the whole report, or you have an element you think is too stringent (I.E. Glazing is required to be double or triple glazed, or the slab on ground requires to be an insulated slab system) there is nothing you can do to lessen this requirement.

A JV3 report uses a performance-based approach that evaluates the overall energy efficiency of a building through computer simulations. This method allows us to move around performance. For instance using the same scenario when the glazing needs to be double glazed or the slab on ground need to have insulation, we could either lessen this requirement (single glazing) or delete the requirement. We would then compensate for this loss of energy by say; increasing the insulation in the ceiling, or upgrading the wall insulation or many other possible scenarios. This enables us to keep construction cost economical. While a JV3 report might cost more, the overwhelming outcome of these reports is the cost of the construction saving will more than offset the cost of the report by many orders of magnitude.

Complexity

A Section J report is relatively straightforward and easy to produce, while a JV3 report is more complex and requires specialised knowledge and software. This is why there is a cost differential between services.

Summary

A Section J report is a compliance report that demonstrates compliance with prescriptive energy efficiency requirements, while a JV3 report is a more flexible alternative verification method that requires more specialised knowledge and computer simulations but will generally keep construction costs to a minimum.

PurposeMethodologyComplexitySummaryGet A Quote

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(07) 3135 9723
info@littleshrub.com.au
PO Box 5518, Manly, QLD, 4179

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