Seadragon House - Sustainable House Day

House Notes – Seadragon House

Our house is passive design, has a north-south orientation with triple glazed windows, which allow large views to the sea. Located in a sustainable development, the northern aspect of the house is single storey and the southern is double storey, incorporating an east-facing courtyard providing protection from the wind. The house is all electric with energy efficient appliances, timber floors and heat pump hot water service and split-system heating/cooling. We have 7.1 kw of solar panels and 7.4 kwh storage battery which supplies 90% of our energy. The house is very air-tight with a HRV air-circulation system achieving a rating of 0.41 air exchanges/per hour.

Sustainability Features

ENERGY AND WATER EFFICIENT FEATURES

- Energy efficiency:
- Draught proofing
  Efficient lighting
  Efficient appliances
  Energy monitoring
- Passive heating cooling:
- Heat recovery ventilation system
- Active heating cooling:
- Ceiling fans
  Heat exchange ventilation system
  Heat pump
  Split system airconditioner
- Water heating:
- Hot water heat pump
- Water harvesting and saving features:
- Rainwater storage - Above ground
- Average water consumption per day:
- 5Kl
- Above ground rainwater storage Type:
- Two 5,000L tanks
- Above ground rainwater storage Size
- 10,000L
- Energy Efficient Lighting
- LED lights throughout
  Natural daylight
- Window Protection:
- Awnings (external)
  Blinds
  Eaves

SUSTAINABLE & RECYCLED MATERIALS

- Recycled and reused materials:
- Recycled timber for internal windows
- Recycled and reused materials:
- Excavated earth

INSULATION SPECIFICATIONS

- Insulation Type:
- Ceiling
  Internal walls
  Floor
- Ceiling Type:
- R6 Bradford gold batts
- Ceiling Rating:
- R6.0
- Floor Type:
- Polystyrene foam
- Floor Rating:
- R4.0
- Internal Walls Insulation Type:
- Bradford Gold Batts
- Internal Walls Insulation Rating:
- R4.0

RENEWABLE ENERGY SPECIFICATIONS

- All-Electric Home?
- Yes
- Renewable energy used:
- Solar PV grid connect
- Size of PV system:
- 7.1kW
- Average Daily Energy Consumption:
- 5kWh

COSTS AND COST SAVINGS

- Total cost of home when constructed:
- $800,000
- Cost estimate of sustainable home/features:
- $80,000
- Estimate of annual savings:
- $3000

HOUSE DESIGN SPECIFICATIONS

- House Size
- 19.9
- BAL Rating
- BAL – 12.5: Ember attack with heat up to 12.5kW/m2
- Roof
- Metal (Colorbond)
- Wall Materials
- Lightweight construction (timber frame)
  Metal (Colorbond)
  Timber
- Window and Door Types
- Sliding windows/doors
  Tilt and turn
  Triple glazing
  180 degree opening doors
- Universal Design Features
- 100cm minimum door opening width
  Lever handles for doors (no knobs)
  Minimum 110cm wide hallways
  Shower head on rail for various heights
  Slip resistant flooring
- Number of bedrooms
- 3
- Number of bathrooms
- 2

GARDEN AND WASTE REDUCTION

- Garden / Outdoors
- Community vegetable garden
  Edible garden
  Local indigenous plants
  Organic
  Native plants
  Wicking beds
- Waste Reduction Practices:
- Book exchange/library
  Compost all food scraps
  Make jams/conserves
  Pickle and preserve food
  Recycle

HEALTHY HOME FEATURES

- Healthy home features
- Airtight house design
  Automated ventilation system
  Chemical free cleaning products used
  Heat recovery ventilation (HRV)
  Indoor plants for air filtration
  Low VOC paints/sealer/varnish
  Natural light and ventilation

Seadragon House 2023

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House Notes – Seadragon House

Sustainability Features

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