Carwoola House 2017

House Notes – Carwoola House

Passive solar principles: Orientation to let winter sun into the living spaces and exclude sun in summer (the 270-degree views from north to south include beautiful mountains and valley); extensive insulation to retain winter heat and summer cool inside; thermal mass in the walls (cavity brick) and floor to maintain a stable inside temperature; cross flow ventilation for spring and autumn; shielded from western sun by a rock ledge.

Passivhaus technologies used: fully sealed windows and doors which complete the building envelope with a membrane to prohibit air movement, except through a filtered 1kW heat-exchange ventilation system in the extremes of summer and winter (and excludes dust and fog); the windows and doors are triple glazed, thermally broken and seal shut like a fridge door; a thermal break beam also runs the perimeter of the house at the junction between the slab and the cavity brick wall insulation; a membrane is employed to allow moisture to move from inside to outside, thereby preventing condensation, but ensuring that the air is kept stable inside the home.

Read more about this Carwoola House in Sanctuary 40. Article written by Rachael Bernstone and photography by Paul Barnett

Sustainability Features

Years Open
2017
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Efficient lighting
      Draught proofing
      Efficient appliances
    • Passive heating cooling:
    • Shading
      Cross ventilation
    • Active heating cooling:
    • Heat exchange ventilation system

    • Active heating cooling:
    • Split system aircon/heater; combustion stove
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Above ground storage
      Greywater system

      Storage connected to
    • Above ground rainwater storage Type:
    • Tank
    • Above ground rainwater storage Size
    • 110,000L
    • Storage connected to
    • Whole house
    • Water harvesting and saving
    • Irrigation and drip irrigation from dam water supply for the garden and lawn
SUSTAINABLE & RECYCLED MATERIALS
    • Recycled and reused materials:
    • Timber
      Glass
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Ceiling
      Internal and external walls
      Floor

    • Ceiling Rating:
    • R4.0
    • Floor Type:
    • Under floor
    • Floor Rating:
    • R1.5
    • Other Insulation Methods:
    • Under roof foil R1.5
    • Internal / External Walls Rating:
    • R2.5
RENEWABLE ENERGY SPECIFICATIONS
    • Energy star rating:
    • 9.8 Star; built to Passivhaus standard but not certified
    • Renewable energy used:
    • Solar PV grid connect
COSTS AND COST SAVINGS
    • Cost estimate of sustainable home/features:
    • $585,000
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 156m2
    • Window and Door Types
    • Triple glazing
    • Universal Design Features
    • Disability access
    • Number of bedrooms
    • 2
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Mulching
    • Garden / Outdoors
    • Drip irrigation
      Composting
      Native plants
      Bee keeping
      Chickens
      Aquaponics

Location
Carwoola NSW 2620
    • Housing Type:
    • Standalone House
    • Project Type:
    • New Build
    • Builder
    • Wayne Torres

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