Waterfall Valley Hut - Sustainable House Day

House Notes – Waterfall Valley Hut

Waterfall Valley Hut
– New bushwalkers’ hut at Waterfall Valley, Overland Track
– Cradle Mountain – Lake St Clair National Park, Tasmanian Wilderness World Heritage Area

– completed 2020
– minimal footprint, low embodied energy materials (lightweight timber construction)
– BAL 29/40
– climate zone 8
– hyper insulated, (roof R8, walls R6, floors R6, triple glazed windows)
– technologies to eliminate condensation
– off grid
– partial prefabrication & construction by helicopter

Sustainability Features

ENERGY AND WATER EFFICIENT FEATURES

- Energy efficiency:
- Draught proofing
  Efficient lighting
- Passive heating cooling:
- Cross ventilation
  External planting
  Passive solar designed home
  Shading
- Water harvesting and saving features:
- Rainwater storage - Above ground
  Compost toilet
  Grey water system
  Stormwater management
- Average water consumption per day:
- 4l
- Above ground rainwater storage Type:
- water tank
- Above ground rainwater storage Size
- 14,000l
- Energy Efficient Lighting
- LED lights throughout
  Natural daylight
  Skylight
- Window Protection:
- Eaves

SUSTAINABLE & RECYCLED MATERIALS

- Recycled and reused materials:
- Rocks/stone

INSULATION SPECIFICATIONS

- Insulation Type:
- Under-roof
  Ceiling
  Internal walls
  External walls
  Floor
- Ceiling Type:
- Bulk – glass wool
- Ceiling Rating:
- R8
- Floor Type:
- Bulk - glass wool
- Floor Rating:
- R4
- Under Roof Insulation Rating:
- R8
- Internal Walls Insulation Type:
- Bulk – glass wool
- Internal Walls Insulation Rating:
- R5
- External Walls Rating:
- R5.4
- External Walls Type:
- Bulk – glass wool

RENEWABLE ENERGY SPECIFICATIONS

- All-Electric Home?
- No
- Renewable energy used:
- Solar PV off-grid
- Size of PV system:
- 10

HOUSE DESIGN SPECIFICATIONS

- BAL Rating
- BAL – 40: Increasing levels of ember attack and ignition of debris with a heat flux of up to 40kW/m2
- Roof
- Metal (Colorbond)
- Wall Materials
- Lightweight construction (timber frame)
  Timber
- Window and Door Types
- Awning
  Low-e, films
  Skylights
  Triple glazing
- Universal Design Features
- 80cm minimum door opening width
  Flush thresholds (no lip) to all external doors
  Lever handles for doors (no knobs)
  Minimum 110cm wide hallways
  Slip resistant flooring
  Window openings easily accessible
- Universal Design Features
- This building is only accessible by a 7 hour strenuous bushwalk on rough and steep tracks.
- Number of bedrooms
- 1
- Number of bathrooms
- 1

GARDEN AND WASTE REDUCTION

- Garden / Outdoors
- Wilderness
- Garden / Outdoors
- Frog friendly
  Local indigenous plants
  Native plants
- Waste Reduction Practices:
- Waste free/reduced construction site
- Other Waste Reduction Practices:
- Bushwalkers carry their own supplies in and their rubbish out

HEALTHY HOME FEATURES

- Healthy home features
- Airtight house design
  Carpet free - tiles/concrete/timber flooring throughout
  Chemical free cleaning products used
  Cross flow ventilation
  Formaldehyde free cabinets
  Low VOC paints/sealer/varnish
  Natural light and ventilation
  Natural oil sealer/finishes
  VOC free paints/sealer/varnish
- Healthy Home
- passive ventilation - trickle vents

Waterfall Valley Hut 2024

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House Notes – Waterfall Valley Hut

Sustainability Features

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