A section of the National Construction Code could result in higher energy bills for homeowners. The section allows builders to bypass energy efficiency requirements using a less precise rating scheme.

NatHERS matters
The Nationwide House Energy Rating Scheme (NatHERS) ensures that new houses and renovations meet minimum energy ratings so that they are compliant with the Code. But the problem is:

• Builders are applying Reference Building Verification Method (RBVM) also known as Verification Using a Reference Building (VURB) standard to meet energy efficiency standards
• VURB standard allows builders to award Pass or Fail instead of 0-10 stars
• VURB Pass or Fail falls short of the NatHERS 6-star rating 
• VURB was to accommodate alternative building technologies to comply with standards
• VURB standard allows builders to deliver thermal performance ratings as low as 2.7 stars

Home buyer or renovator
Check out Saskia Pickles’ article in Conversation titled Construction industry loophole leaves home buyers facing higher energy bills. VURB transfers hidden costs of heating and cooling to home buyers and renovators.
To avoid extra energy costs, you can ask a NatHERS assessor to review your plan or rate your home, for excellent energy rating.
Complying with the Code and achieving a minimum energy efficiency rating, is a complicated process. The links and information provided only a basic introduction.

How to navigate the basics of the Nationwide House Energy Rating Scheme:  
Step 1: Watch the Nationwide House Energy Rating Scheme (NatHERS)  explanation video.   
Step 2: Check out how the National Construction Code (NCC) works. 
Step 3: Download the Performance Solutions for Energy Efficiency flowchart   
Step 4: Download the Compliance with the NCC flowchart. It explains how to meet compliance.  
Step 5: Download the Developing a Performance Solution Using the NCC flowchart. It explains the all the key terms.  
Step 6: Download the Guidance Document it provides clear instructions for developing a performance solution.   
 

Once you have decided on a solution, you can access specific materials for each solution.
   
Home buyers and renovators can arrange for a personalised consultation by finding a professional NatHERS assessor  here.