Exeter Ecoshift Home 2020

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Location
North Wollongong NSW 2500
    • Housing Type:
    • Standalone House
    • Project Type:
    • Renovation
    • Builder
    • Arken Built
    • Designer
    • Arken Built

About Exeter Ecoshift Home

This original post-war brick home was the first project for owners Jarrod (Builder) and Anneleise (Building Designer) in their new design and build venture . It has been the perfect pet project for Anneleise, who is studying a PhD on passive retrofitting at the Sustainable Buildings Research Centre, to explore the effectiveness of solar passive design and the benefits of improved insulation and air-tightness measures.

The original dwelling was draughty, cold in winter and stifling in summer. A rear extension was designed with a soaring raked ceiling to the North, double-glazed windows, an insulated thermal mass concrete slab, cross-ventilation, a recycled reverse brick veneer wall, and eaves designed for optimal performance in summer and winter. Bricks from original demolition were reused and low and non-VOC product used throughout. The extension consistently sits above 22 degrees in winter, and is effectively cooled with cross-ventilation in summer without the need for mechanical air conditioning or heating. Free-ranging chickens and native/waterwise plants feature in the back yard.

The project, still under construction, will eventually include a large rain water tank, replacement of original windows to airtight, double glazed units, weather-sealing, and installation of wall and roof insulation to original dwelling. The rear deck will feature a solar optimised fixed louvre pergola for outdoor enjoyment all year round.

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SUSTAINABLE FEATURES

Years Open
2020
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
    • Passive heating cooling:
    • Cross ventilation
      Passive solar designed home
      Shading
      Thermal mass
    • Active heating cooling:
    • Ceiling fans
    • Average water consumption per day:
    • 110L per person
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Solar skylight
    • Window Protection:
    • Eaves

    • Window Protection:
    • Pergola with optimised fixed louvres
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • - Recycled left over decking for fencing - Recycled bricks (demolition mixed with bought recycled bricks) for reverse brick veneer wall & chicken coop fence - Bricks for piers left over from other job sites - Recycled timber built in cabinetry - Underfloor insulation under thermal mass suspended concrete slab
    • Recycled and reused materials:
    • Bricks
      Timber
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      External walls
      Floor
    • Ceiling Type:
    • Bulk – glass wool
    • Ceiling Rating:
    • R4.0
    • Floor Type:
    • Bulk - polystyrene board
    • Floor Rating:
    • R1.4
    • Under Roof Insulation Type:
    • Anticon blanket 80 mm
    • Under Roof Insulation Rating:
    • R1.8
    • External Walls Rating:
    • R2.5 (soundscreen)
    • External Walls Type:
    • Bulk – glass wool
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • No
    • Average Daily Energy Consumption:
    • 3.5kWh
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $180,000 (still under construction)
    • Cost estimate of sustainable home/features:
    • $10,000
    • Estimate of annual savings:
    • $400
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 147m2
    • BAL Rating
    • BAL – Low: There is insufficient risk to warrant specific construction requirements
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Lightweight construction (timber frame)
      Reverse Brick veneer
    • Window and Door Types
    • Clerestory windows
      Double glazing
      Louvre windows
      Low-e, films
      Stacking windows/doors
      Sun Tunnel/SolaTube
    • Universal Design Features
    • 80cm minimum door opening width
      Minimum 110cm wide hallways
      No Corner cupboards
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Chickens
      Composting
      Native plants
      Water wise plants
    • Waste Reduction Practices:
    • Recycle
      Waste free/reduced construction site
HEALTHY HOME FEATURES
    • Healthy home features
    • Airtight house design
      Carpet free - tiles/concrete/timber flooring throughout
      Cross flow ventilation
      Indoor plants for air filtration
      Low VOC paints/sealer/varnish
      Natural light and ventilation
      VOC free paints/sealer/varnish
      Wax based sealer/finish

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