Ideas, traps and a bit vitality effectivity science

Within the first of a month-to-month column, MICHAEL DRAGE, founding father of Reimagined Habitat, appears at enhance vitality effectivity while you design and construct a brand new house, renovate, prolong or simply to replace your present house.

WITH the transfer to larger vitality rankings for brand spanking new houses (lastly!), rising vitality prices, and, properly, that factor known as local weather change, each little factor we are able to do to make our houses extra vitality environment friendly helps.

However, maybe probably the most neglected half – except you may have lived in one of many underneath insulated chilly/sizzling packing containers Canberra is understood for – is the consolation ranges and well being advantages (each bodily and psychological) of residing in an environment friendly house. (Extra of that in subsequent month’s column.)

We are going to deal with our matters backed with a mix of analysis and practicality. I’ve discovered that if we can assist you perceive why issues work, then it makes it simpler so that you can work via the how and what to do.

Subject 1 – Hold it tight

Do away with the draughts. You possibly can have one of the best insulation, one of the best home windows and one of the best design, but when the chilly or sizzling air is pouring in or out, then the home simply doesn’t work.

Air tightness is often the key driver after we analyse the effectivity of a house. The constructing code says the air in the home ought to solely change 10 occasions per hour (older houses in Canberra may be many multiples of this). This implies you must warmth or cool 10 occasions the amount of your house every hour to keep up consolation. Think about in the event you may make it three? Immediately your heating and cooling payments go down 70 per cent.

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  • Set up seals round leaky home windows, doorways, skylights and roof entry factors. Bunnings has a spread of choices.
  • Be certain exhaust followers have baffles in them to cease air leakage when they don’t seem to be on.
  • Examine gaps via floorboards and skirtings. One choice is blow or spray in insulation which cannot solely assist with this but in addition preserve your ft heat at night time. A aspect profit is it often eliminates any creaky floorboards!


  • In case you get too tight it’s essential to take into consideration mechanical air flow techniques (one other subject for the long run).

Extra detailed info on this may be discovered on the weblog web page of our web site.

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Ian Meikle, editor