Woy Woy Bay House 2016

House Notes – Woy Woy Bay House

Originally a fishing shack dating back to the 1950s, there have been extensions in the 1960’s, 1970’s, and since purchasing the place in 2009 the place has had a deck replacement, interior reconfiguration and sustainability upgrade.

A primary goal for the 2011 renovation was to make the house more comfortable while reducing imported energy needs.

With a family of 4, it is possible to live here with net zero energy imports averaged over the whole year – as the solar systems and passive solar design generate more energy than needed during the summer, while during the winter a bit more needs to be imported – when cloudy or very windy.

This ongoing project has involved insulating both internal and external walls, while fibro (asbestos) cladding is removed and replaced by plywood at the front and Colorbond at the back (to minimise risk during fires).

Efficient lighting has been incorporated throughout, and all wiring and plumbing penetrations have been blocked to minimise air leakage. (some leaky original floorboards are still an issue during cold winter winds). All hot water piping has been insulated to conserve energy.

An all electric house is preferred for greater efficiency and lower operational costs, but the gas stove top came with the second hand kitchen so was retained and runs on 10 KG gas bottles (which avoid costly annual gas daily service charges).

Integrated waste separation system has been built in to enable recycling simplicity and remove the need for plastic bin liners.

Subscribed to 100% Greenpower.

Note: access is via a shared driveway, parking at house, along driveway and along street below. second house from the end- the one with the double carport – for visitor parking.

Note: the owner is an energy and sustainability consultant and is happy to assist with any questions relating to energy systems, sustainable design and billing, and will also be doing some presentations if an when requested- probably hourly too

Sustainability Features

Years Open
2015
2016
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Efficient lighting
      Draught proofing
      Efficient appliances
    • Passive heating cooling:
    • Shading
      Cross ventilation

    • Passive heating cooling:
    • neighbours houses shade east and western sun
    • Active heating cooling:
    • Heat pump
    • Water heating:
    • Solar hot water (evacuated tube)
    • Water harvesting and saving features:
    • Stormwater management
      Low flow shower heads
      Low flow taps
SUSTAINABLE & RECYCLED MATERIALS
    • Sustainable materials:
    • Recycled decking boards, stairs and rail timbers, (Spottted Gum). Recycled bathroom and laundry bench timbers. recylced and reconfigured kitchen. Plywood and sheet steel cladding, Cork flooring.
    • Recycled and reused materials:
    • Timber
      Windows
      Doors
      Paving
      Glass
      Kitchen/bath cabinets
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Ceiling
      Internal and external walls
      Floor
    • Ceiling Type:
    • fibreglass
    • Ceiling Rating:
    • R 3.6 insulation
    • Floor Type:
    • partial fibreglass and partial Cork floor
    • Floor Rating:
    • R1.5, (But gaps between some original flooroards)
    • Internal / External Walls Type:
    • fibreglass
    • Internal / External Walls Rating:
    • External walls R 2.4
RENEWABLE ENERGY SPECIFICATIONS
    • Energy star rating:
    • 5
    • Renewable energy used:
    • Solar PV grid connect

    • Renewable energy
    • Solar hot water.
COSTS AND COST SAVINGS
    • Cost estimate of sustainable home/features:
    • Sustainability features cost only a small portion of total renovation which was around $90k
    • Estimate of annual savings:
    • Great cost savings while having a vary comfortable interior.
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 135m2 + 36m2 covered deck
    • Window and Door Types
    • Recycled windows, replacing aluminium framed ones with timber typical
    • Universal Design Features
    • Multi-generational
      Adaptive design
    • Number of bedrooms
    • 3
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Water wise plants
      Organic
      Composting
      Native plants
HEALTHY HOME FEATURES
    • Healthy home features
    • Low VOC paints, natural wood oils and wax on main bathroom bench, water based floor paint,
Location
Woy Woy Bay NSW 2256
    • Housing Type:
    • Standalone House
    • Project Type:
    • Renovation
      Retrofit
      Continual Improvement
    • Builder
    • various

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