How does a Building Lose & Gain Energy?
Energy always moves from warm to cold. That's a scientific fact, and it means warm air:-
enters a cool home in summer, and
exits a warm home in winter.
Energy Gain in Summer
Energy Loss in Winter
This energy transfer occurs in three ways:-
conduction e.g. in winter heated air is lost as it moves through another substance such as walls or ceilings
convection e.g. heated air rises and leaves your building through gaps such as downlights
radiation e.g. heated air entering via direct sun on windows
Our energy audits identify, report and offer solutions for the key contributors to your premises energy waste, and when fixed, can substantially improve your premises energy performance and reduce your energy bill.
Is My Building Leaking?
It's quite likely. Most Australian buildings leak three times more air than they should. That's the equivalent of leaving a large window open 24/7 and makes your premises significantly cooler in winter and warmer in summer and may cause up to 40% of your buildings energy losses.
Your Benefit: Greater thermal comfort, reduced energy consumption and expense.
* Thermal imaging is a service provided in addition to an audit.
What is your insulation like?
Did you know since 2010 the minimum Building Code of Australia (BCA) ceiling insulation required to for a 6-star energy rating, is approximately an R3.5 batt, to meet most construction assemblies. An R3.5 batt is about 18 cm deep. Now that's pretty thick! However, if your home was built prior to 2003 (when there was no such thing as an energy rating) energy was cheap and the chances are your home is only partially insulated if at all, and with batts that are fairly ineffective e.g. R1 or 2 (5- 8 cm deep). They could also be damp, not sitting flush with the ceiling, piled on top of one another by tradies doing other work in your roof, and they are probably pretty dirty.
The bad news is that missing, compromised or poor insulation provides a direct path for up to 35% of your:-
warm air to leave your home in winter, and
enter your home in summer.
In 2010, the minimum standard was lifted to 5 stars and in 2010, energy efficiency minimum levels were lifted to 6 stars.
Our Solution: We use non-destructive thermal imaging and a visual inspection to identify insulation issues in your ceiling walls and underfloor (see thermal images below).
Your Benefit: A clear understanding of the quality of insulation in your home, and the cost and benefits if top-up or replacement is recommended, and once addressed your home could be up to 10 degrees warmer in winter and cooler.in summer.
Thermal Bridging - say what?