I am currently looking into under floor insulation and other methods to insulate my brick veneer home. I am to keep the house warmer in winter and cooler in summer.
I’m also looking to put in ducted air conditioning to aid in the heating and cooling but wanted some guidance in the best methods of insulation before going ahead with either purchase. Any guidance on what type of air conditioning units are advisable and guidance for installation would also be appreciated.
I’m looking to do the air conditioning asap ready for the heat of summer. The insulation is planned between summer and winter.
Our expert’s answer
Ross, thanks for your enquiry.
Draft sealing & insulation are both very important areas to look at when wanting to make your home more comfortable in both winter and summer.
When looking at insulation, ceiling insulation is probably of greatest importance; followed by wall and finally under-floor. With under-floor insulation, you should make sure that the product allows the timber floor to breathe – this can be done through small air gaps or perforations. Your supplier should be able to recommend a product that is suitable. Be aware that some forms of under-floor insulation (generally polystyrene products) would be contra-indicated if you live in a bushfire prone area due to the fumes they might release.
As far as air-conditioning goes, I would advise against a ducted system and instead recommend a number of separate reverse cycle heat pump/air conditioners. You will lose a lot of the efficiency of the system through the ducting and small units tend to be more efficient than larger units anyway. Look for a unit with CoP/EER greater than 4. Use of multiple separate units also allows for effective zoning of your heating/cooling. This is also where good draft proofing comes into its own. Keeping the heat/cold where you want it just makes good sense (and saves your dollars and cents)!