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Rotary ventilators extract super heated air in the roof space enabling it to be replaced by fresh air through ceiling registrations or eave vents. Roof space temperatures are reduced, in turn reducing the amount of heat radiating into the home.

Ducted air conditioning systems operate far more efficiently with roof space ventilation, resulting in lower energy bills.

Less roof space moisture. Up to 12 litres of moisture per day is drawn into roof spaces from shower and kitchen fans. This can cause mould and mildew.

Low E range of laminated glass has been developed for maximum transparency, high performance solar control and low reflection. It economically manages the heat of summer and the cold of winter equally.

It incorporates a solar control component that in summer reduces the sun's heating, glare and UV fading of interior furnishings. In winter, it provides thermal insulation and reduces heat loss through the glass by over 30% when compared to standard glass, without heavy tinting or reflective mirror-like coatings that reduce natural light.

Laminated glass will also reduce voice noise by 13% and traffic noise by 24% when compared to standard 3mm glazing.

Photovoltaic panels installed on your roof harness the sunshine and convert it directly into pollution-free electricity. This renewable energy can either be used for your own demand or sold back to the grid.

Most states have incentive programs in place where the installation of a solar power system is eligible for a Federal Government rebate (approx $8,000).

The system offered will significantly reduce your power bills whilst reducing fossil fuel emissions, but will not be capable of running the house entirely on solar power. The costs to have a system capable of running a house entirely on solar power during daylight hours is considerable and currently deemed not cost effective.

The above figures will cover the cost for duplication of drains to allow for future connection to a grey water system but does not include the grey water system itself. The drains for grey water will be connected to basins, baths, spas, showers and laundry troughs but not kitchen sinks or toilets.

This separate line will then join on the main drain run to the sewer at a point to be nominated by the owner near the house.

Recycling grey water will help eliminate the unnecessary waste of this precious resource and reduce overall water consumption bills.

A separate cold water run to an above-ground future rain water tank position will be installed and loop back to all toilets and cold water washing machine tap, helping save water and reducing excess water bills.

The cost to supply and install an above-ground rainwater tank varies from $1,000 - $5,000 depending on the capacity of the tank.

Other considerations for rainwater tanks are location and size (above or below ground), concrete plinth for tank to sit on, first flush diverter, overflow pipe work and soak well, plus any diversion of existing down pipes to rainwater tank location. Extra cost for pumps will be required for below-groundwater tanks.

The latest in environmental water heating technology, the heat pump extracts or absorbs heat or energy from the atmosphere and via refrigeration technology, multiplies or increases this many times. It then transfers that energy in the form of heat into stored water which gives very similar efficiencies as solar but without the need for solar panels on the roof.

High efficiency, environmentally friendly, quiet operation with back up electric booster provides similar running costs to electric solar systems and approx $50 per annum more to run than a gas boosted solar system.

This 310 litre capacity heat pump unit has estimated energy savings of 60 - 65% of an electric storage system (saving approx $400 - $450 p.a.) or 40 - 45% of a 5 star rated gas system (saving approx $200-$250 p.a.).

Long life, energy efficient globes can be used to replace standard incandescent light bulbs giving longer life and better light distribution while using less power.

Anticon combines two very effective forms of insulation into a single product for maximum performance.

Anticon consists of a glass wool blanket adhered to a reflective foil facing. The foil acts as a barrier to reflect up to 95% of radiant heat entering the roof cavity while preventing condensation. The blanket absorbs outside noise and slows the transfer of heat into and of the home.

Other benefits include:

• Rain noise reduction
• Thermal insulation all year round
• Reduced loads on air conditioning and heating saving money and energy costs
• Helps retard the spread of flames in the event of roof space fire
• Reduces metal creep which causes creaking noises as temperatures change
• Prevents condensation forming under metal rooves