Maurice and Lyn’s Gisborne Retrofit 2020

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Location
Gisborne VIC 3437
    • Housing Type:
    • Standalone House
    • Project Type:
    • Retrofit/addition
    • Designer
    • ecoMaster

About Maurice and Lyn’s Gisborne Retrofit

Suck it up princess!” is not the most auspicious way to start to a major project. The retrofit journey started in 2003 as a response to an astronomical energy bill accompanied by an incredibly cold home (rated 1.5 stars) and the realisation that the lounge room emitted almost double the national average in carbon emissions of a standard home.

Thermally, financially and ethically – it was “not ok”.
Not really sure where to start, builders and architects were contacted. The conversation went like this…
“Let me get this straight love, you live in Gisborne, its winter and you are cold”.
“Yes! That’s right” delighted that he understood the problem.
His response “Suck it up Princess! You live in Gisborne, its winter and you are gunna be cold”!

Clearly not content with that response, Maurice and Lyn Beinat have retrofitted their 5 bedroom brick veneer, ranch style, inter-generational home to be comfortable all year round while reducing their home’s energy consumption by a massive 84%. Their home, which was producing almost double the national average of greenhouse gas emissions is now a zero emission home.

So what did they do? As the home is a large inter-generational home, mistakes were not an option so the research was extensive. They built a heat chamber (as you do!), hired a cool room and tested every insulation product on the market with 2 minute timing tests using multiple temperature probes. After 3 months of testing, a library of temperature performance curves was developed from the empirical testing.

The retrofit began! Maurice, being an R&D kind of guy, developed a series of solutions and retrofit techniques that worked effectively. Extensive draught proofing reduced their energy bill by 50%, secondary glazing to all 46 windows, retrofit wall insulation to all external walls, lighting replacements, ceiling insulation upgrade, underfloor insulation, installed evacuated tube solar hot water systems in combination with a wet flue. Passive solar heating was installed, invisible pelmets fitted over heavy drapes, a small 2.6 kWh solar array was added. Reliance on the wood fire has been reduced / eliminated with the installation of highly efficient air conditioning units and a Big Ass ceiling fan continues its slow rotation to ensure the air temperature is evenly mixed. More recently 3D acoustic tiles were added to the lounge room and an acoustic circle over the dining table to improve the acoustic of the 5m high 9m x 7m central lounge room.

Over 17 years, there have been over one hundred improvements made to the home – some major, some minor. The home is now rated 7.6 stars with zero carbon emissions. The energy bills fluctuate with the migratory habits of teenagers and friends looking for somewhere peaceful to rest for a while. Even with minimal heating, it is a cosy warm home during winter. Summers are cool with little or no air-conditioning, even on the hottest days. During the 2019 fires the house was not impacted by smoke that shrouded much of the country. This is an experience that not many homes were able to achieve.

The cost of retrofit was less than the cost of stamp duty had the family sold and bought again. So its been an extremely cost effective exercise. Thermally, financially and ethically – it is “more than ok!”

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SUSTAINABLE FEATURES

Years Open
2020
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Energy monitoring
    • Passive heating cooling:
    • Cross ventilation
      Shading

    • Passive heating cooling:
    • Solar Venti, Sun Lizard, Big Ass Ceiling Fan
    • Active heating cooling:
    • Ceiling fans
      Split system airconditioner
    • Water heating:
    • Solar hot water (evacuated tube)
      Wood fire wetback
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
    • Average water consumption per day:
    • Totally water self sufficient - not connected to town water
    • Above ground rainwater storage Type:
    • 2 x Concrete tanks
    • Above ground rainwater storage Size
    • total capacity 150,000 litres
    • Energy Efficient Lighting
    • LED lights throughout
      Solar skylight
    • Window Protection:
    • Blinds
      Deciduous tree/vegetation
      Drapes/curtains
      Honeycomb blinds
      Pelmets
      Solar pergola
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Ceiling
      External walls
      Floor
    • Ceiling Type:
    • Bulk – polyester
    • Ceiling Rating:
    • R4.3
    • Floor Type:
    • Bulk - polystyrene board
    • Floor Rating:
    • R2.8
    • External Walls Rating:
    • R3.2
    • External Walls Type:
    • Bulk – polyester
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • No
    • Average Daily Energy Consumption:
    • n/a We run 3 households & a factory from this site now
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • Unknown cost, Built in 1976
    • Cost estimate of sustainable home/features:
    • < $60,000
    • Estimate of annual savings:
    • $2,500
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 350 m2
    • BAL Rating
    • No BAL rating requirements at time of construction
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Brick veneer
    • Window and Door Types
    • Awning
      Pocket doors
      Retrofit Double Glazing
      Sliding windows/doors
      Sun Tunnel/SolaTube
    • Universal design accessability
    • Adaptive design
      Multi-generational
    • Universal Design Features
    • Lever handles for doors (no knobs)
      Pocket doors so that cabinet doors are out of the way
    • Number of bedrooms
    • 5
    • Number of bathrooms
    • 3
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Chickens
      Composting
      Drip irrigation
      Edible garden
      Frog friendly
      Local indigenous plants
      Orchard
      Organic
      Permaculture
      Native plants
      Swales
      Worm farm
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
      Repair
      Swap with friends and neighbours
HEALTHY HOME FEATURES
    • Healthy home features
    • Chemical free cleaning products used
      Cross flow ventilation
      Formaldehyde free cabinets
      Indoor plants for air filtration
      Natural light and ventilation

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