Great video! Finally somebody promoting energy efficient houses in Australia. Not very popular among wide public , but hopefully soon people will understand it is worth to put some money into the insulation and the building envelope. The workmanship costs almost the same, so don't be stingy and add some money into quality materials. Gonna check your other videos :)
Since watching this channel I now realize my 1986 built brick veneer house is a glorified tent. I have found endless air gaps throughout the house. The worst is those stupid Dow lights. Thanks I’m learning a lot
If you have 50 watt 90mm halogen downlights, you should able to replace them pretty easily with completely sealed low wattage LED downlights that can even have pink bats placed over the top of them.
Thanks for sharing this info, John! I live in Victoria and I reckon a lot of Aussie houses don't incorporate the importance of a 'building envelope' that you speak of and can easily leak air. Good to see Efficiency Matrix have some quality products to help address this problem.
Well done guys. I keep watching your videos. My dream home will be passivehaus or retrofit. Thank you for all information provided here extremely useful.
Quality content! It was you guys that opened my eyes to the importance of the building envelope and leading me on to the whole passive house thingy. Yet to start building, but at least I’ve been well informed. Many thanks again.
Ross, thank you so much for your comment. I’m glad you enjoy our content, and i’m stoked that our videos have assisted you in understanding building performance, at another level. 😉
my grandfather always used to say good natural ventilation is important for health in a home but he also wasnt paying as much as we are now for heating :s
Interesting. I live in a hot country (Thailand north east). Temperature drops to twenty degrees for 2-3 weeks of the year, otherwise it’s always over 30 and in the 40s. We don’t use aircon much and open windows for air circulation. Would l assume in my scenario that airtightness would only be applicable if running aircon continuously? I can understand its a must for Australia. Cheers
I live in Ireland and have exhaust heat pump. New apartment. They put big vents in every room ( which are basically holes in walls ) and it’s blowing a hurricane through them even if they are closed. I don’t get that. I’m loosing so much heat
@@ecoevo yes so when you vent attic space won't it pull a little air from your living space slowly even tho it's air sealed? Or why do you say not 2 vent the living space?
@@Brandon-no3vc there should be a vent in the eaves outside, so that ventilation is drawn from outside, into roof cavity, and then out the top of the roof, (via a wirly bird, or similar).
As if the state governments and councils will enact air tightness in Australia when they're being constantly bribed by builders to let them get away with building the shoddiest cheapest crap they can.
And yet here we are, state governments are progressing and supporting content for consumers and builders to understand air tightness and insulation consistency. ;) ruclips.net/p/PLh7JO_MR5_CJN9eH2BosGYUjQ1cuC7pVT
Sadly with the quality of so called " builders" around today . This is an unachievable goal. It's up to the owner to either fix the problem their self or pester and insist the builder fix it. The latter will obviously cost more.
This is such bologny, it's just the democrats making more laws that don't make sense. You CAN NOT make a house completely air tight, if you do, it will fail somewhere as soon as you open your front door. You should make your house "weather tight", and somewhat air tight, but not too excessive. The idea that you are wasting money heating/cooling is ridiculous. The tiny amount of air "leakage" equals the same amount of energy you will use if you have a couple extra cold/hot days throughout the year, people and lawmakers need to stop draining our wallets with this "build tight" bologny. Sorry, but it's true.
John, It’s an unfortunate name of the concept “air tightness” I think you are interested in the term of draft proofing instead, which is great too. We are not talking about laboratory air tightness in this video. Some of the homes down here are pretty damn leaky, and I think you would be horrified with some of the things we see. Thanks for your clarification.
Blower door testing during construction is under appreciated.
Test before installing dry wall and again after.
Saving energy saves money on utilities.
Great video! Finally somebody promoting energy efficient houses in Australia. Not very popular among wide public , but hopefully soon people will understand it is worth to put some money into the insulation and the building envelope. The workmanship costs almost the same, so don't be stingy and add some money into quality materials. Gonna check your other videos :)
Since watching this channel I now realize my 1986 built brick veneer house is a glorified tent. I have found endless air gaps throughout the house. The worst is those stupid Dow lights. Thanks I’m learning a lot
If you have 50 watt 90mm halogen downlights, you should able to replace them pretty easily with completely sealed low wattage LED downlights that can even have pink bats placed over the top of them.
Thanks for the great points about airtightness! All so helpful!
Thanks for sharing this info, John! I live in Victoria and I reckon a lot of Aussie houses don't incorporate the importance of a 'building envelope' that you speak of and can easily leak air. Good to see Efficiency Matrix have some quality products to help address this problem.
Excellent information👌will watch part 2 and 3 later. Thanks for producing these videos
Thanks Your Highness! 😉 Looking forward to your comments on the other videos.
Well done guys. I keep watching your videos. My dream home will be passivehaus or retrofit. Thank you for all information provided here extremely useful.
Quality content! It was you guys that opened my eyes to the importance of the building envelope and leading me on to the whole passive house thingy. Yet to start building, but at least I’ve been well informed. Many thanks again.
Ross, thank you so much for your comment. I’m glad you enjoy our content, and i’m stoked that our videos have assisted you in understanding building performance, at another level. 😉
Can you say something about ventilation please? Take under consideration different types of weather
my grandfather always used to say good natural ventilation is important for health in a home but he also wasnt paying as much as we are now for heating :s
Ventilation is great. Ventilation through insulation is not ideal or effective, from a health perspective.
Amazing video, thanks guys! Could you tell me what infrared camera is attached to the phone at 4:36 please?
Geoffrey Barton www.flir.com.au/products/flir-one-pro/
Interesting.
I live in a hot country (Thailand north east). Temperature drops to twenty degrees for 2-3 weeks of the year, otherwise it’s always over 30 and in the 40s. We don’t use aircon much and open windows for air circulation. Would l assume in my scenario that airtightness would only be applicable if running aircon continuously?
I can understand its a must for Australia.
Cheers
I live in Ireland and have exhaust heat pump. New apartment. They put big vents in every room ( which are basically holes in walls ) and it’s blowing a hurricane through them even if they are closed. I don’t get that. I’m loosing so much heat
Are his elbows attached to his torso?... asking for a friend.
What's the smoke machine device?
Great video, but what's with the awful background music? I had to stop the vide halfway as I could not focus on what's being said due to the music.
Thanks for the video =)
Great work. Reckon more Ausies need to know about this. & a blower door test been done in new builds
Agreed Len, Building air tightness is way more important than fancy kitchen benchtops. 😉
Efficiency Matrix yes I agree :)
When you air seal attic don't you have 2 vent the living space somehow from gasses and stale air and such?
No, you may need to vent your attic spaces though. But using your attic as a place to get fresh air from is a big big no no..
@@ecoevo yes so when you vent attic space won't it pull a little air from your living space slowly even tho it's air sealed? Or why do you say not 2 vent the living space?
You shouldnt vent to the attic. Vent with a window. That is what they are designed to do.
@@ecoevo but your not gunna do that in the winter
@@Brandon-no3vc there should be a vent in the eaves outside, so that ventilation is drawn from outside, into roof cavity, and then out the top of the roof, (via a wirly bird, or similar).
As if the state governments and councils will enact air tightness in Australia when they're being constantly bribed by builders to let them get away with building the shoddiest cheapest crap they can.
And yet here we are, state governments are progressing and supporting content for consumers and builders to understand air tightness and insulation consistency. ;) ruclips.net/p/PLh7JO_MR5_CJN9eH2BosGYUjQ1cuC7pVT
Sadly with the quality of so called " builders" around today . This is an unachievable goal. It's up to the owner to either fix the problem their self or pester and insist the builder fix it. The latter will obviously cost more.
Totally understandable. That's why it's so important to make sure you are choosing the right builders.
a lot of talking yet not much information provided
How about these ones? ruclips.net/p/PLh7JO_MR5_CJN9eH2BosGYUjQ1cuC7pVT
How unhealthy
What is unhealthy?
This is such bologny, it's just the democrats making more laws that don't make sense. You CAN NOT make a house completely air tight, if you do, it will fail somewhere as soon as you open your front door. You should make your house "weather tight", and somewhat air tight, but not too excessive. The idea that you are wasting money heating/cooling is ridiculous. The tiny amount of air "leakage" equals the same amount of energy you will use if you have a couple extra cold/hot days throughout the year, people and lawmakers need to stop draining our wallets with this "build tight" bologny. Sorry, but it's true.
John, It’s an unfortunate name of the concept “air tightness” I think you are interested in the term of draft proofing instead, which is great too. We are not talking about laboratory air tightness in this video. Some of the homes down here are pretty damn leaky, and I think you would be horrified with some of the things we see. Thanks for your clarification.
Do you have some data to support your rant?
It's as much about comfort than it is about savings on the energy bills