Low Energy Super Shed 2021

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House Notes – Low Energy Super Shed

This is a demonstration building converted from a metal shed to meet the passive house standard for a retrofitted building. We wanted to show that any existing structure can be transformed to a thermally comfortable, clean, sunny, and healthy building, where virtually no heating or cooling is required, without needing to build a new house.  It provides a public location to view how to build a passive house and to provide the sensory experience of inhabiting a passive house space.

There are none of the typical problems of a normal house.  There are no air leaks, it is super insulated to prevent heat losses and gains, has 100% fresh air using heat recovery to help maintain a comfortable temperature, with no mould or condensation on any surface, and is dust and insect free.  Any emissions from materials, food, or humans are continually exhausted. A tiny backup reverse cycle air conditioner (1.5kW consumption) is sufficient to deal with any extreme conditions such as a heat wave or large numbers of visitors.

As much as possible, materials have been reused from other buildings, such as 80-year-old roofing sheets used for an external wall, the kitchen cabinets, timber decking used as a wall cladding, and some double-glazed windows from a demolition site.  We have built some items ourselves such as the concrete benchtop decorated using found objects.

The second function of the Low Energy Super Shed is to be the tea-room, workshop space and meeting room for Canberra City Farm.  Woden SEE Change will later use the building for training interested groups on low energy housing practices and training in passive house building techniques.

LESS was initiated by Woden SEE-Change and with support from the ACT Government, private businesses, community groups and private donors.

Come and see the result.

SUSTAINABILITY FEATURES

Years Open
2019
2021
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Energy monitoring
    • Passive heating cooling:
    • Cross ventilation
      Passive solar designed home
      Shading
    • Active heating cooling:
    • Heat exchange ventilation system
    • Energy Efficient Lighting
    • LED lights throughout
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • Building uses wood in frame, plywood encasing, windows and door, LVL's & battens
    • Recycled and reused materials:
    • Doors
      Timber
      Windows
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Under-roof
      Ceiling
      Internal walls
      External walls
      Floor
    • Ceiling Type:
    • Bulk – polyester
    • Ceiling Rating:
    • R2.5
    • Floor Type:
    • Bulk - polystyrene board
    • Floor Rating:
    • R2
    • Under Roof Insulation Type:
    • Polystyrene batts
    • Under Roof Insulation Rating:
    • R5
    • Internal Walls Insulation Type:
    • Bulk – polyester
    • Internal Walls Insulation Rating:
    • R2.5
    • External Walls Rating:
    • R4
    • External Walls Type:
    • Bulk – polyester
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
COSTS AND COST SAVINGS
    • Total cost of home when constructed:
    • $73,000
    • Cost estimate of sustainable home/features:
    • $10,000
    • Estimate of annual savings:
    • $2,500
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 40
    • BAL Rating
    • BAL – 19: Increasing levels of ember attack and ignition of debris with a heat flux of up to 19kW/m2
    • Roof
    • Metal (Colorbond)
    • Wall Materials
    • Lightweight construction (timber frame)
    • Window and Door Types
    • Awning
      Double glazing
      Low-e, films
      Triple glazing

    • Window and Door Types
    • Tilt & turn windows
    • Number of bedrooms
    • 1
    • Number of bathrooms
    • 1
HEALTHY HOME FEATURES
    • Healthy home features
    • Airtight house design
      Cross flow ventilation
      Heat recovery ventilation (HRV)
      Low VOC paints/sealer/varnish
      Natural fibre furnishings
      Natural light and ventilation
      Wax based sealer/finish
Location
Fyshwick ACT 2609
    • Housing Type:
    • Display Home
    • Project Type:
    • Retrofit
    • Open with support of
    • SEE-Change Inc and Canberra City Farm
    • Builder
    • Leigh Duxson - Project Manager
    • Designer
    • Logikhaus & Canberra Passive House

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