Hemp Roundhouse 2019

This profile is written and maintained by the homeowner, architect, or builder.

House Notes – Hemp Roundhouse

We have just completed building two x 8m round buildings co-joined into one home. We used a prefabricated roof and wall frame so that they could be erected on-site, saving energy and time.

The corrugated iron roof was craned in, bolted at the top (with a cable stretching right around each roundhouse) and tightened so there was no need for a centre pole.

The home features hempcrete walls, double-glazed aluminium windows and doors outside, and timber ones inside. The home sits on a waffle pod concrete slab and there is a cork floating floor above. The internal ceilings are radiator ply that have been finished with two coats of Ecolor Polyclear, which has no VOCs.

The home is independent of all services and has:

  • Off-grid solar system with battery backup
  • LED lighting
  • Induction cooking
  • Heat pump hot water system
  • Dry composting toilet.

Designed by Lucas Martin, Randall Dutaillis, Architects and built by J L Proudman Building.

Wheelchair accessible

Mitsubishi Outlander PHEV EV on display for SHD

SUSTAINABILITY FEATURES

Years Open
2018
2019
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
    • Passive heating cooling:
    • Thermal mass
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Stormwater management
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight

    • Energy Efficient Lighting
    • Cupolas x 2
    • Electric Vehicle Type
    • Mitsubishi Outlander PHEV
SUSTAINABLE & RECYCLED MATERIALS
    • Recycled and reused materials:
    • Kitchen cabinets
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Ceiling
    • Ceiling Type:
    • Bulk – cellulose fibre
    • Ceiling Rating:
    • R4.0
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Renewable energy used:
    • Energy storage/battery
      Solar PV off-grid
    • Size of PV system:
    • 3kW
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $400,000 (built in 2018)
    • Estimate of annual savings:
    • $4500
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 130m2
    • BAL Rating
    • BAL – Low: There is insufficient risk to warrant specific construction requirements
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Hempcrete
    • Window and Door Types
    • Awning
      Double glazing
    • Universal design accessability
    • Disability access
      Multi-generational
      Wheelchair access
    • Universal Design Features
    • 100cm minimum door opening width
      Flush thresholds (no lip) to all external doors
      Hobless showers
      Lever handles for doors (no knobs)
      No stairs/steps
      Ramps and path gradients must be less than 20:1
      Shower head on rail for various heights
      Space around toilets for ease of access in wheelchairs
      Tapware to be easily accessed from outside the shower
      Various heights for benches in kitchens
    • Number of bedrooms
    • 1
    • Number of bathrooms
    • 1
HEALTHY HOME FEATURES
    • Healthy home features
    • Indoor plants for air filtration
      Lime render/wash
      Low VOC paints/sealer/varnish
      Natural light and ventilation
      Natural oil sealer/finishes
      No carpets
Location
Crookwell NSW 2583
    • Housing Type:
    • Standalone House
    • Project Type:
    • New Build
    • Builder
    • J L Proudman Building
    • Designer
    • Randall Dutaillis Architects

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