INDICA HEMP HOUSE, Wilyabrup, WA 2024

House Notes – INDICA HEMP HOUSE, Wilyabrup, WA

Having always been passionate about sustainability and eco-design, designing and building Indica Hemp House had been a passion of mine soon after learning about hempcrete construction at a hemp expo about 6 years ago. After viewing local homes that had been constructed by my builder, and ‘feeling’ how it was inside, I knew my house HAD to be built with this material. My house is constructed of locally grown industrial hemp formulated on-site into hempcrete. Hempcrete has many qualities that make it incredibly eco-friendly and sustainable as a building material including: it provides high thermal insulation; it’s fire resistant; it’s walls breathe; it sequesters CO2 providing a Negative Carbon footprint; it’s inherently airtight; and no waste is produced during its construction. Starting with a passive solar design that was developed for a west facing block, every aspect of it’s function and ongoing life has had careful and considered thought to contribute to sustainability.

Sustainability Features

Years Open
2024
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Smart home features
    • Passive heating cooling:
    • Cross ventilation
      Deciduous planting around house
      External planting
      Passive solar designed home
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
      Heat pump
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Grey water system
      Stormwater management
      Low flow shower heads
      Low flow taps
      Drip irrigation
    • Average water consumption per day:
    • 33L
    • Above ground rainwater storage Type:
    • Heritage HGT 110 Slimline Water tank
    • Above ground rainwater storage Size
    • 111,500L
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Skylight
    • Electric Vehicle Type
    • Tesla Model 3 P
    • Window Protection:
    • Adjustable Shading
      Automation/controls
      Awnings (external)
      Blinds
      Drapes/curtains
      Eaves
      External window hoods/surrounds
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • 50% of our internal walls are 250mm hempcrete at a R-value of 3.55. The other 50% is Gyprock insulated with Bradford Gold R4.1.
    • Recycled and reused materials:
    • Cladding
      Decking
      Railway sleepers
      Rocks/stone
      Sleepers
      Timber
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Ceiling
      Internal walls
    • Ceiling Type:
    • Bulk – glass wool
    • Ceiling Rating:
    • 4.1
    • Internal Walls Insulation Type:
    • Hempcrete to 50% internal in addition to bulk glass wool
    • Internal Walls Insulation Rating:
    • 3.82
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Energy star rating:
    • 8.7
    • Average Daily Energy Consumption:
    • unknown
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $1.23M (2023)
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 347 m2
    • BAL Rating
    • BAL – 12.5: Ember attack with heat up to 12.5kW/m2
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Hemp
      Hempcrete
      Lightweight construction (timber frame)
      Timber
    • Window and Door Types
    • Double glazing
      Skylights
      Sliding windows/doors
    • Universal Design Features
    • 80cm minimum door opening width
      Hobless showers
      Lever handles for doors (no knobs)
      No stairs/steps
      Rocker style light switches
      Slip resistant flooring
      Strong fittings like towel rails that can be used as hand rails
    • Number of bedrooms
    • 4
    • Number of bathrooms
    • 4
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Drip irrigation
      Frog friendly
      Local indigenous plants
      Native plants
      Water wise plants
    • Waste Reduction Practices:
    • Recycle
      Repair
      Waste free/reduced construction site
HEALTHY HOME FEATURES
    • Healthy home features
    • Airtight house design
      Carpet free - tiles/concrete/timber flooring throughout
      Cross flow ventilation
      Formaldehyde free cabinets
      Indoor plants for air filtration
      Lime render/wash
      Natural light and ventilation
      Natural oil sealer/finishes
      VOC free paints/sealer/varnish
      Wax based sealer/finish
Location
Wilyabrup WA 6280
    • Housing Type:
    • Standalone House
    • Project Type:
    • New Build
    • Builder
    • Gary Rogers of Hemp Home Australia
    • Designer
    • Livia Hawker Design & Drafting

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