Donna's Hempcrete House 2019

Address
Narara NSW 2250
Booking required – see link below
HOUSE DETAILS
    • Housing Type:
    • Standalone House
OPENING WITH SUPPORT OF
    • Open with support of
    • Narara Eco Living Network
    • Builder
    • Ryan White - eBuild and Consult
    • Designer
    • Envirotecture

This house is currently under construction, please take care on site

This hempcrete house in Narara Ecovillage, incorporates a multitude of design features ensuring that not only does the building meet all of the Ecovillage’s rigorous sustainability goals and guidelines, but also creates a very comfortable and liveable home for its owner.

The 130sqm three bedroom house sits on a sloping block with views across the valley. The single storey house is split over two levels to follow the natural slope of the site. The upper level has a burnished concrete slab floor, which provides thermal mass to help regulate temperature, while the lower level has a timber framed floor.

In addition to the thermal mass provided by the concrete slab, a 5m long rammed earth wall runs through the centre of the building. Both the rammed earth and concrete slab enjoy long exposure to winter sun, through extensive north facing double-glazed aluminium-framed windows and doors.

The external walls of the home have a timber framed structural core at the centre of the hempcrete, which then provides the insulation and breathability.

Designed by Envirotecture and being built by eBuild and Consult

 

This house achieved a NatHERS rating of 8.8 stars using NatHERS accredited software (AccuRate). Find out how the star ratings work on the Nationwide House Energy Rating Scheme (NatHERS) website.

 

 

 

This home is open as part of the Narara Ecovillage Open Day. To see other homes that are open at the village, click here. To visit this house and the ecovillage, book tickets here.

This home is supported by

SUSTAINABLE FEATURES

Years Open
2019
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Efficient lighting
      Efficient appliances
    • Passive heating cooling:
    • Cross ventilation
      Passive solar designed home
      Shading
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Above ground rainwater storage
      Low flow shower heads
      Low flow taps
    • Above ground rainwater storage Type:
    • Landscape retaining tanks and stainless steel tank
    • Above ground rainwater storage Size
    • 18,000L
    • Storage connected to
    • Garden
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Other
    • Energy Efficient Lighting
    • Redilights
    • Window Protection:
    • Awnings (external)
      Deciduous tree/vegetation
SUSTAINABLE & RECYCLED MATERIALS
    • Recycled and reused materials:
    • Taps - internal, Decking material
    • Sustainable materials:
    • Magnesium oxide board flooring and Marmoleum flooring
    • Recycled and reused materials:
    • Appliances
      Bathroom cabinets
      Bottles
      Bricks
      Doors
      Glass
      Light fixtures
      Timber
      Other
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
      Floor
    • Ceiling Type:
    • Polyester batts between rafters and PIR board under
    • Ceiling Rating:
    • R5.2
    • Floor Type:
    • Other
    • Floor Rating:
    • Wafflepod slab and R2 polyester batts under timber floor
    • Under Roof Insulation Type:
    • Polyester batts between rafters and PIR board under
    • Under Roof Insulation Rating:
    • R5.2
    • Internal Walls Insulation Type:
    • Bulk – polyester
    • Internal Walls Insulation Rating:
    • R2.0
    • External Walls Rating:
    • R2.8
    • External Walls Type:
    • Hempcrete
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Energy star rating:
    • 8.3 STARS
    • Renewable energy used:
    • Solar PV grid connect
    • Size of PV system:
    • 5kW
COSTS AND COST SAVINGS
    • Estimate of annual savings:
    • $1000
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 130m2
    • BAL Rating
    • BAL – 12.5: Ember attack with heat up to 12.5kW/m2
    • Roof
    • Metal (Zincalume)
    • Wall Materials
    • Hempcrete
      Rammed earth
      Strawbale
      Timber
    • Window and Door Types
    • Double glazing
      Sliding windows/doors
    • Universal Design Features
    • 80cm minimum door opening width
      Flush thresholds (no lip) to all external doors
      Hobless showers
      Lever handles for doors (no knobs)
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 1
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Bee keeping
      Chickens
      Community vegetable garden
      Composting
      Edible garden
      Organic
      Native plants
      Water wise plants
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
      Repair
      Swap with friends and neighbours
HEALTHY HOME FEATURES
    • Healthy home features
    • Cross flow ventilation
      Lime render/wash
      Low VOC paints/sealer/varnish
      Natural light and ventilation
      Natural oil sealer/finishes
      No carpets
      Wax based sealer/finish