Gruen Renovation
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House Notes – Gruen Renovation
The original brick veneer unit did not have any insulation at all and had single glazed aluminium windows. A freezing 0.8 stars rating. Halogen lighting throughout. + old appliances etc. And with some changes to it we have managed to convert the house into a comfortable family home with low bills, that rates as 8.4 stars.
We had ripped off all external plasterboard and insulted all walls, floors, ceiling and have imported double glazed upvc windows from Germany. As the performance of them was much better than anything we could get for the same money on the Australian market. U -value of 1.1.
We did some internal layout changes and converted the 2 bedroom 1 bathroom unit to a 3 bedroom, 2 bathroom family home.
New led lighting throughout. new energy efficient appliances and water efficient tabs and mixers. all pains are low voc. Livos oils used for timber floors. 1.5kw solar pv system on roof.
It’s hard to say exactly how much money we are saving. Before we did the renovation we didn’t have kids. So it was just 2 adults that would work during the week, only home around 6pm weekdays and on weekends. Now we have 2 kids and I work from home, but yet our electricity usage was 21.5kW/h pre renovation and now with the 4 kids and me home all day its 6.2 kW/h.
To find out more information about the architect Gruen Eco Design.
Sustainability Features
- Energy efficiency:
- Efficient lighting
Draught proofing
Efficient appliances
- Passive heating cooling:
- Shading
Cross ventilation
- Active heating cooling:
- ducted heating and split system - as it was the cheapest way of heating
- Water heating:
- Old gas heater, will be used until the end of it’s lifespan and then replaced
- Recycled and reused materials:
- Timber
- Insulation Type:
- Ceiling
Internal and external walls
Floor
- Ceiling Type:
- Glass wool
- Ceiling Rating:
- R7.0
- Floor Type:
- Earth wool
- Floor Rating:
- R2.5
- Internal / External Walls Type:
- Glass wool
- Internal / External Walls Rating:
- R2.5
- Energy star rating:
- 8.4
- Renewable energy used:
- Solar PV grid connect
- Cost estimate of sustainable home/features:
- $20,000
- Estimate of annual savings:
- Approx $2000 per year
- House Size
- 96m2
- Window and Door Types
- Double glazing
Low-e, films
- Number of bedrooms
- 3
- Number of bathrooms
- 2
- Garden / Outdoors
- Water wise plants
Composting
Native plants
Chickens
- Healthy home features
- All low VOC finishes internally. including kitchen cabinets
- Housing Type:
- Apartment
Development
- Project Type:
- Renovation
Retrofit
- Builder
- n/a
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