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Tamborine 10-Star Rated Positive Energy Home 2020

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Tamborine 10-Star Rated Positive Energy Home

House Notes – Tamborine 10-Star Rated Positive Energy Home

Tamborine 10 star rated, single level family home with passive solar design.

The home harvests more energy than it consumes, making it a positive energy home. Of course, all the energy that has gone into the home building is not accounted for, but then all homes need energy to be built.

Features:
* 10-star energy rating
* Passive Solar design
* Passive ventilation
* All-electric
* Double glazing, double low-e coatings, argon filled cavity with thermally broken aluminium frames.
* Water harvesting, 110,000 liter water tank
* On-site water treatment
* Veggie garden
* Over 1000 grasses, ornamental and native trees planted in the past 8 months

Our main goals when designing and building this house was energy efficiency and low ongoing maintenance and costs. This is our 2nd 10-star rated owner-built home and the first one is very similar, just smaller.

We have used only commonly available materials so there was no need for specialised trades and engineering. Basically we have proven that a 10-star home is very achievable, when applying common sense, and by following a set of design principles. We have no background in the building industry.

This house achieved a NatHERS rating of 10 stars using NatHERS accredited software

Sustainability Features

Years Open
2020
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Energy monitoring
    • Passive heating cooling:
    • Cross ventilation
      External planting
      Passive solar designed home
      Shading
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
      Split system airconditioner
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Blackwater system
      Low flow shower heads
      Low flow taps
    • Average water consumption per day:
    • 150 liters approx.
    • Above ground rainwater storage Type:
    • Colorbond tank
    • Above ground rainwater storage Size
    • 110,000 liters
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
    • Window Protection:
    • Eaves

    • Window Protection:
    • Roof overhang calculated to provide shading during the hot time of the year but let the sun in for heating during winter.
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
    • Ceiling Type:
    • Bulk – glass wool
    • Ceiling Rating:
    • R4
    • Under Roof Insulation Type:
    • Combination of reflective and bulk insulation under the roof sheeting (R1.8) and bulk cavity R4
    • Under Roof Insulation Rating:
    • R1.8
    • Internal Walls Insulation Type:
    • Bulk – glass wool
    • Internal Walls Insulation Rating:
    • R2
    • External Walls Rating:
    • R3.5
    • External Walls Type:
    • Bulk – glass wool
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Energy star rating:
    • 10
    • Renewable energy used:
    • Solar PV grid connect
    • Size of PV system:
    • 5.8kW
    • Average Daily Energy Consumption:
    • 3kW
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $502,000
    • Cost estimate of sustainable home/features:
    • $20,000
    • Estimate of annual savings:
    • $4,500
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 227m2, 300m2 roof area
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Lightweight construction (steel frame)
    • Window and Door Types
    • Awning
      Double glazing
      Low-e, films
      Sliding windows/doors
    • Universal Design Features
    • 80cm minimum door opening width
      Hobless showers
      Kitchen bench/table for wheelchairs to access (75-85cm high)
      Lever handles for doors (no knobs)
      Minimum 110cm wide hallways
      No stairs/steps
      Rocker style light switches
      Shower head on rail for various heights
      Window openings easily accessible
    • Number of bedrooms
    • 5
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Composting
      Edible garden
      Local indigenous plants
      Orchard
      Organic
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
      Repair
      Take own containers to the supermarket and for take away food
HEALTHY HOME FEATURES
    • Healthy home features
    • Cabinet design to minimise dust collection
      Carpet free - tiles/concrete/timber flooring throughout
      Cross flow ventilation
      Indoor plants for air filtration
      Natural light and ventilation
Location
Tamborine Mountain QLD 4272
    • Housing Type:
    • Standalone House
    • Project Type:
    • New Build
    • Builder
    • Owner builder
    • Designer
    • self-designed

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