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Home Renovations

What is a house energy rating?

Go green with sustainable and energy-efficient homes

Did you know your house can be energy-efficient and environmentally friendly too? Depending on the building materials, floor plan, orientation and other factors, your house can be highly thermally-efficient and reduce your dependence on heaters and air conditioners.

New builds and house renovation projects need to comply with the National Construction Code energy rating. In Queensland, the residential houses must achieve a 6-star rating and units/complexes need to achieve a 5-star rating. 

Energy Efficient and Green Home Builders Gold Coast

What is the house's energy rating?

Our appliances have energy ratings but did you know your house can have an energy rating too?

The house energy rating measures the energy efficiency of the house. However, it doesn’t consider the appliances installed in the house like air conditioners, hot water systems, etc, it's more about the design and construction. Nationwide House Energy Rating measures the efficiency of a house based on the shell of the building. It allocates a rating to a house from 0 to 10. So a house with a rating of 0 will require a lot of energy to heat or cool, whereas a house with a rating of 10 will require minimal artificial ways to heat or cool. 

Source : CSIRO

Your house won’t necessarily look like a spaceship if it gets a 10-star rating but it will be immensely comfortable throughout the year. So even if it is scorching hot outside, you will be protected from feeling the worst of it. Also, you will save on your energy bills as you won’t need to use a heater or aircon as often. 

Features of energy-efficient homes

  • Living areas and kitchen are oriented towards north
  • Bathrooms, garage and rooms with low usage should face west
  • Materials used in construction - concrete and bricks are ideal for keeping the house warm in winter, perfect if you live in a cool climate.
  • Suitably placed windows let the sunlight in and offer natural ventilation
  • Minimum east and west-facing walls or windows
  • Insulated walls, roof, rooms and ceilings
  • Sealed doors and windows keep the house warm in winters
  • Ceiling fans are energy efficient and boost air circulation helping to reduce heating and cooling requirements
  • Wide eaves and awnings for shading
  • Exterior and Interior Finish - paint on roof and walls (light coloured paints on roof and walls) 
  • Floor - carpet, timber or tiles
  • LED Lighting
  • Glazed windows
  • Solar power 
  • Rainwater tanks 

How are NatHERS ratings assessed?

House Energy Rating Software is used to simulate the house considering the climate, orientation and building materials. It will analyse the energy needed to heat or cool the house on an annual basis. Depending on the results of the software, the star rating is allocated to a building. 

How to obtain a 6+ Star house energy rating?

To build a house with a 6+ star rating requires careful planning with the building designer in the initial stages. At Symcorp, we can design and build energy-efficient houses to suit:

  • your lifestyle and requirements
  • the local climate 
  • your building site -  landscape and orientation

Our team takes a comprehensive approach to building green and energy-efficient homes.  Speak to our home building experts today and ask about our energy-efficient green home designs. Call us on 07 5594 1768 or complete our online enquiry form.

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We understand that when hiring a builder for a major home renovation, addition or extension, or building a new home can be one of the biggest decisions you’ll make in your life. There are many variables and questions, and no doubt you want to make sure you’re making the best decisions for yourself and your family. And most certainly, you want to feel confident that you’re choosing a trusted builder who is reputable and works with you to deliver a high quality finished product.

At Symcorp, we’ve worked tirelessly to ensure our business and building systems are world class and that our entire team is focused on working together to deliver an amazing experience and product for you and your family.