Insulation lobby hotly defends Star enrgy efficiency
The Insulation Council of Australia & New Zealand (ICANZ) has argued that timber floors are "entirely compatible" with the new 5 Star energy efficiency provisions of the Building Code of Australia.
Abetz sets cat among 5 Star pigeons: Responding to a call for a moratorium on the implementation of 5 Star by Senator Eric Abetz, ICANZ President Dennis D’Arcy said the 5 Star provisions flexibly accommodated a wide range of building materials, including suspended timber floors. "Senator Abetz can be assured that timber floors are easily accommodated under 5 Star and home buyers and architects can still take full advantage of their aesthetic and structural appeal."
System "very flexible": In most cases it only took the addition of a few hundred dollars of additional floor insulation to achieve 5 Star compliance. 5 Star was a "very flexible system and needs to be supported by governments for the benefits it gives home buyers and the environment," Mr D’Arcy said.
Abetz wants embodied energy measure: Senator Abetz called for a halt to 5 Star until the results of study into the economic advantages of building energy efficiency standards are completed, and until a measure of embodied energy (ie energy consumed during manufacture of building materials) is incorporated into the models upon which building regulations are based.
Insulators say that is still 10 years away: Mr D’Arcy replied: "5 Star is standard international practice. We and the rest of the world are at least a decade away from seeing viable regulations based on the embodied energy of building materials."
Information is confidential: He said a major impediment is that much of the data required by governments is commercially confidential information that remains closely guarded by material suppliers to the building industry. "Delaying 5 Star for ten years would needlessly add a further million energy inefficient homes to the housing stock of Australia, and will put Australia even further behind the rest of world."
US standards higher than Aust: He pointed out that the levels of thermal insulation for buildings in the US are very much higher than in Australia for equivalent climate zones. 5 Star has already been thoroughly researched and assessed over a long period and was widely regarded as a vital and practical step towards reducing energy waste in Australian buildings.
High cost claims denied: Mr D’Arcy also described claims that 5 Star will add $20,000 to the cost of a new home as "unfounded". Several independent surveys had shown 5 Star to be a low cost initiative. A detailed study by the Victorian Building Commission found that the direct cost of achieving a 5-Star House Energy Rating for an average 250sq m house is just $1,500.
Reference: Dennis D’Arcy, email: D.Darcy@insulation.com.au website: http://www.icanz.org.au
Erisk Net, 15/7/2006