CLT Passive House That inspires.
Вставка
- Опубліковано 6 січ 2018
- Episode 1
EcoEvo Design, CLT Passive House principles home. Efficiency Matrix covers the features of a home built by APHI Projects. We cover the building envelope features, conduct some thermal imaging verification and blower door testing on the home, in order to help people understand what it means to have a high performing building envelope.
Home Build = Aphi Projects
www.aphiprojects.com.au
CLT = PassivHaus Australia
www.passivhausaustralia.com.au/
Ventilation = HRV - Zehnder ComfoAir Q450 TR with integrated Daikin FDXS35 Bulkhead split unit:
www.fantechhhv.co.nz/pages/hom...
Underfloor insulation = MaxRaft fully insulated EPS/XPS slab system:
www.maxraft.co.nz/#about
Wall & Roof insulation = Gutex timber Fibre insulation, single layer 120mm thick to walls, double layer 100mm & 80mm thick to roof:
gutex.de/en/home/
Cooktop = Bora Basic induction cooktop with inbuilt air extraction:
www.bora.com/gb/gb/cooktop-ex...
Windows = Fauser Fensterbau:
www.fauser-fensterbau.de/
Blower Door Testing = Efficiency Matrix
www.efficiencymatrix.com.au
Hosted by John Konstantakopoulos
#ecoevo #CLT #passivehouse - Навчання та стиль
Great video. Well done to all involved. Thank you for the explanations of all of the concepts. Keep it up.
Great job APHI Projects. Leading the way in building healthy and energy efficient homes.
An passive/earth ship is my dream home. Thanks for the vid
Well done Jonners, Joseph and APHI! Love the SIGA Wigluv tape on the MHVR ducting. Perfect use for it.
Thanks Oz!
Great to see a good quality Australian passive house video.
A follow up video with a two storey house or building talking about adding a second storey challenge and using brick internally for thermal mass would be great too.
Oh, I'm planning to do this in Glen Waverley so it will save your builder a long drive from Geelong too.
Reverse brick veneer is an interesting one. 😉
Fantastic home
Great video - very informative and provides some fantastic ideas for creating a passive home.
Speccy house! Very stylish👍
Nice work guys :)
Really loved this video. Very informative. Covered things that I’ve not seen others talk about - eg the induction rangehood alternative. Hoping for more videos like theseto educate myself and get more inspirations. Thanks again.
Qu@ntum Thanks mate! There is the straw bale home, which was a finished product also. 😉. check it out on the channel.
Great house and really interesting video. The MaxRaft slab is genius as when we did an interior slab with underfloor heating at our old house in the UK country, I now realise why it was better than before but that as much as 80% of the heat was being lost to the stone walls and to the ground outside. When it snowed (rarely) I could never work out why it immediately disappeared around the edge of the house as the underfloor heating (oil) leaked out.
Well done guys, what I think is the best idea , is the exhaust fan in the kitchen
Agreed. I’d like to incorporate that in my next house.
awesome, simply awesome, I have just completed a copy of the CSR/CSIRO home and I am totally sold on passive homes. Australia needs to up their game on better building designs, the current R Value adapted by many Councils is so terribly flawed. Again, well done.
I built a passive solar ski chalet at Edelweiss Valley, Quebec in 1978-9. Most ski valleys orient the slopes to face north, to lengthen the ski season, and if there is a residential component, it's located opposite, with both excellent solar exposure and a forested mountain at it's (northern) back. I worked in that area about 15 years, as Canada aggressively improved it's building code, after the first oil crisis of the '70s. Canada had increased insulation and vapor/air barrier standards and was doing "blower tests" to determine air-tightness decades before most areas of the USA. That's quite understandable, it's really cold in Canada.
Now I'm in the hottest place in N. America (Death Valley, 200 miles north is about the same as here) the Sonoran Desert. (Palm Springs, CA) California is aggressively improving it's building code to include better envelope control, it's basically the same direction 35 years later with earthquake considerations. All good but they are missing a huge element of desert design.
Radiant energy comes from the sun in "hidden" form because we can't see the low frequency light, but we can sure feel it. Heat islanding is a direct result of having too much thermal mass in the wrong places, in our landscapes. The same conditions exist within the building envelope and are only now being addressed. A simple reflective shield or radiant barrier can stop most of the heat that hits your house, from entering it. Something like that is missing when they hand down the re-written codes from other areas, to us. Most codes are developed in northern climates, where radiant energy isn't considered as much, or at all because they get less of it, and keeping heat in, is a lot harder than keeping 'cool' in. (Coolth, is a recognized term) They don't want to reflect away any heat energy, whereas we want to reflect away as much of it as possible.
My contention is that the Passive Haus code (German institution) that incorporates thermal mass and other electromagnetic technologies like solar PV, battery and thermal mass storage, and geo-engineering ( the ground is our friend when it's hot, but all the houses have slab foundations!?!?) will replace conventional, light-weight, stick-framing in hot climates.
Here in southern California there are about 5 million of them.
As an example of bad placement of thermal mass, my 3D design software (Sketchup) shows the volume of the concrete slab to be roughly equivalent to the volume of concrete in the 1" stucco that surrounds our house. The slab is inside and keeps the house cooler. The stucco is outside and keeps the house hotter. WTF?
At our house, we're enveloping the single (main) floor exterior walls with 3" of polyisocyanurate insulation @ R 6.6/inch = R 20 or so. That uninterrupted (almost no thermal bridging through the envelope) layer of insulation will perform 25% better than insulation put into cavities. A light weight covering is then applied, either trowelled on or metal, or wood, where the sun doesn't hit the wall. A similar but slightly more complicated system incorporates the truss roof with special attention to how the roof and wall system connect with as few penetrations as possible. Cement tiles on the roof also absorb heat and keep it for later, after the sun goes down, so we removed those and covered the roof with a radiant barrier and corrugated steel, to reflect away heat, rather than absorb it.
Mini-split heat pumps will handle the three zones of the ranch-style (90 feet long) using newly installed pre-cooled underground air and brushless motors and variable speed motors. A 5 kw Solar array with 9.8 kwh lith ion battery storage can handle the electrical requirements 90% of the time. Sometimes there is still excess power generated by the PV system, which goes into an EV, if one is home.
Why do I do this? One reason is that it's a lot less expensive.
Refuso Againo you have been doing a lot of work, and a lot of learning, along the way!
Your Host looks and sounds like Andy Mapple the professional Waterskier from England...We need to build a Ski Lake down in that field...Good Video...Like the Floor and Wall materials...Go Net-Zero !!!!
Gorgeous house.
It sure is Miss D! 😉
Air performance is now and everyone should demand it in their homes.
Great looking house! Love to see a follow up after a couple of years living in it.
Any chance you can share the ball park figure for building this?
Finally someone did the AC/Dehum interlocking with ERV setup.
Max Young it’s a nice neat setup.
Efficiency Matrix Did you share this in My Efficient Electric Home Facebook group?
Max Young Yes. Take a look. Otherwise repost it for me.
It's a pretty basic set up, would of been nice to set climate zones.
Nice. I have a similar setup in germany but opted for a bit of air infiltration in the cellar . one of the cellar doors is not sealed at the base and is positioned at the bottom of the stair well . this allows a little bit of air to enter and travel up the stairwell and entrance room all the way to the top floor.
If it gets a bit stuffy , which is rare , we just open a window for a few minutes and flood any room with fresh air.
What a great video. Thanks so much! I learnt a lot
Very nice!
Fantastic 👌
Impressed with knowledge of the home owner. I had no idea about how fast the passive house movement is developing with materials.
Ryan Johnson The builder knows his stuff, that’s for sure. If the host seems like he knows what he is talking about, it’s all just a facade. 😆. Thanks for your comment. 😉
He said walls are r3. 8 which is not amazing i got r5 for mine, 100mm insulation he said, it's certainly some polyurethane cause i do not know rhe name of the material, he said something like gultex..?
Passive house are kind old things today, we now build positive houses.
Honu Moorea What is actually important is the consistency of your air barrier and your insulation barrier. If you have gaps in your R5 insulation of around 5% it has a massive impact on your R-Value performance. Wind blowing through walls also impacts R-Value. Passive House Principles, are the only real way to achieve a high performing building envelope.
efficiencymatrix.com/whats-my-actual-r-value-of-my-walls-and-my-ceiling/
Check this calculator out, to see how gaps can impact your R-Value.
@@ecoevo Does not change the fact that you can go out with a 0 leak plastic bag on your body and see for yourself that it will be far from sufficient. Those leaks are important depending where they are, a leak on the bottom side of the building is less important then the same leak on a higher part of the construction. Pretty hard to have leaks in my house, due to the way i builded it, and half of it is burried in the ground...
And i do not have those, what i would call useless very expensive ventilation mecanism, i hate double flux ventilation system, they cost far too much energy (i'm off grid). I gor a positive pressure system that i builded myself, the fans only works when the air quality is under a threshold that i define myseld (particles, CO2, CO, humidity) = i waste less energy then those systems, even without heat exchange, and even then i got so much solar heat coming in that.. Well i use something like 200kg of wood per year to heat the house. Ask the guy from this house how much electricity he use per year and how this consumption is distributed among appliances. Then you'll know if it's efficient, also take the inside and outside temp on a whole year...
Honu Moorea I’m not quite sure what you mean about putting a plastic bag on your body. i don’t see the analogy. How do you know where the leaks are, and how can you be so sure your leaks are good for building performance? What if there are fires outside, what if a leak is exposed to a mouldy wall cavity, what if you are an asthma and heyfever sufferer?
Having a ventilation system of some sort is fantastic, better than what most people have. 😉
Big improvement over normal/ average building practice in Oz
Most homes in Australia leak between 4 - 10ACH@50Pa for new builds and 10-40ACH@50Pa
This house looks awesome! I'm hoping to build a Passive house here in New Zealand some day, the consistent 21 degrees and low humidity would be fantastic!
Would be interesting to see how well the place resists the harsh Ozzy sun in the summer, seems hard to believe it won't become a hot box.
What system have they used to air seal the building? Obviously isn't the standard building paper and tape.
I reckon it's energy saving glass and CLT - this combination works great in cold Europe. Germans started using this technology, now Russia. Glad to see Aussies are following. I hope Australian building standards will change soon.
I love the outside look.
A little like steal taking up corrosion.
What is it and is it durable in tropic environment like Thailand ???
Good job
Christian
Nice
Such a nice design and great technical solutions! I completely dig te integration of the ventilation system with the Daikin AC. However, both units are equipped with a fan I assume. Are both fans "in action" or just one of them and if so, which one is?
Очень хороший, современный дом)
It is a nice modern house! Thanks for the feedback. ;)
Lived in Australia for years...back in the US now....AU is LIGHT YEARS ahead of the US, in most aspects. This included. Incredible build.
Johnathan, it may depend what part of the US you live in. 😉. We are hopefully progressing. Not every home is like this one.
what are the countertops? Is the ext cladding 'superboard'? nice build
Great work! Not sure if I fully understand the makeup of the internal partitions, are they solid laminate throughout? If so, how do you pass all ducting for electrical sockets/light fixtures and water pipes etc?
I wondered about that as well. Solid interior walls struck me as a waste of lumber that would make it harder to run utilities and harder to make future modifications. But there must be some arguments for it that I am unaware of.
I'm building a very similar CLT passivhaus in Sydney's northern beaches. Yours looks very nice indeed! I noticed the Bora extractor on the island bench, we had the same idea, but we're struggling to decide whether to have it on the kitchen wall side or the island bench. How have the occupants liked the Bora on the island bench?
David Hellier i’ll try to find out for you.
Are there panels that aren’t used often for net zero? I don’t think CLT’s are used in Canada yet but they will be. Not sure if there’s a lot of testing data for CLT’s.
I love thinks like that! I have got a questio though... assuming inner walls have a CLT surface, where are electric currents being placed and how are they hidden?
double wall
I intend to build a passive home. But I am stuck with a thermal bridges that is metal plates connecting construction timber elements. I think that plastic connectors seems to be obvious. But have not found any on the market. Any info welcome.
Take a look at www.ov-consult.dk/ Ok, it is in Danish, but if you want more info, you're welcome to contact me. See also my video ua-cam.com/video/BNp0yX94cAQ/v-deo.html :-)
What is the brand, color, and material of the bathroom tiles?
It's fun to look how they are trying to measure temp difference. Jeez, you are in New Zealand.
Really great design. Question: Where did he run the piping/electric if the walls are solid?
I don't know about this particular house but I've worked on a CLT house before, and in the planning stage you figure out where you need cut out and they router it out in the factory. You can also see that not every single wall is CLT like in the bathroom and the ceiling in the hallway so there will be some strategically placed pipes and wires there.
I was about to ask the same question. Too bad you haven't received more answers. I also didn't see too many electrical outlets although I was looking for them throughout the entire video.
how valid is the airtightness when you tape over vents beforehand?? do you test with tape off?
So r 20 walls and r 30 ceiling standard measurement not bad
How much more does it cost to build this way vs. a conventional building?
metta8888 CLT at this stage can be quite costly. We have a new video coming shortly where we talk briefly about this. Stay tuned. 😉
Здравствуйте, где можно посмотреть проект дома?
i wonder how comfortable would this house be in the tropics on the equator with constant sun, no wind, maximum humidity and temperatures above forty degrees??
Are the outside overhangs CLT? Is it ok if CLT gets wet?
things that are laminated always delaminate at some point. Wonder what the lifespan of a CLT structural beam is.
Really good looking house. Seems to me that all CLT for a one storey building is a major overkill structurally. Then again if the client wants that interior and is willing to pay for it - why not.
Absolutely. It is an amazing finish. CLT is also a great way to get a building air tight.
Maybe, but you're also saving costs on straightening standard stick frame walls before lining with gib, gib installation, gib stopping and painting. That's a whole month for a project this size.
I can agree with your point that CLT Is a bit overkill for a one storey home when you know that CLT gets used to make up to 20 storey high buidlings. But it get more and more used in Europe for residentional homes so It's kind of a house ahead of it's time when you see that this house was built in 2018 and only now in 2020 we start using CLT for one family homes.
@@jimidle6168 Exposed CLT interior for single family home is a bit like Tesla for cars - shows you have money and care for the environment. That's why it's growing in Europe.
@@chris-2496 in Hungary people are building from porotherm ceramic bricks and making ceramic tile roofs and all these kinds of frame houses, fachwerk, SIP, etc are not taken seriously as something you can live in. These houses are maybe built but then it's nearly impossible to resell then. So maybe CLT will have a better shot but the idea that house must be made of stone is very strong in Europe still
Nice home. Does smell like wood probably :-)
had doors windows like this 20 years ago
in Eu
+jack pieniak you are right! Europe is more advanced than down here.
jack pieniak I’m from the states I’ve never seen that before. Very nice work.
perfect house for me
it would be dream house if they added a floor or 2
Bigger isn’t necessarily better? 😉
Efficiency Matrix it depends on preference lol
@@ecoevoAgree, bigger doesn't mean better because it doesn't bring people closer. For me, people first over ideas, things and money. So making a home is far more valuable than a passive house structure which is nice and amazing, if you can do both, that's amazing still. Our brains have hedonic adaptations like beautiful things in which the happiness we get from them declines as time passes while focusing on being a positive force to people's lives and having healthy and warm relationships gives us happiness that increases over time. In every money, we can invest it with the most value for most people.
Manny S. Building a home that is sustainable, more comfortable and will be a structure that provides a healthier environment to live in, doesn’t equate to a closer/happier culture? I don’t know, i don’t see the argument against passive house principles should anyone choose to build a home.
Es el futuro.
Luxury
@5:56 passive house principles
What is the name of the Geelong builder please?
Kerrie Charlesworth APHI Projects. Check out the comments of this video.
Why is sun allowed to stream in through all those windows? You mention temperature of 37 C which is 98.6 F. Clamshell awnings would keep out some of that sun load.
it can get cold down here in the southern parts of 🇦🇺 in winter especially. All the windows with regard to solar thermal loading have been modelled for this property.
Looks like CLT makes the ultimate sheer wall.
Why couldn't you save money with glazing that doesn't open? Is there any reason to have mechanical windows in a house with a ventilation system like this?
You could easily avoid installing openable glazing. It all comes down to the preference of the owner, and requirements for building code. Thanks for the question!
How did they wire up the electricals if everything is solid? How would you do work on it afterwards?
It must have a crawlspace or catwalk as we call in in contruction where all those wirings are hidden.
Dia Han Usually with these passive houses they plan them well from the start, and you try not to add new services through the building envelope itself, because you can upset the integrity of it.
What is the cost to build this? How big is it? Love it
Thank you
Do R values mean something else is AUS as they do in USA?
These R values are very small to what I'm used to seeing in USA.
They are metric not imperial.
@@ecoevo I had no idea there was a difference... But a short "google" shows 5.67826 as the multiplier or divider. RSI 3.8 = 21.5 R-Value.
Impressive!
6.8 R-Value (RSI) = 38.6 R-Value on the ROOF! (That's incredible!)
R-3 and passive house sounds weird 😅
In usa they have R-30 walls and R-50 roof somewhere
Metric (Rsi) R-3 is approximately R-17 in the US. The climate down under is a lot milder therefore the additional benefit of R-30/ Rsi-5+ is diminishing very very quickly.
What’s the comparable values between US and international R-values.
Luke William here is a calculator for you.
efficiencymatrix.com/r-value-wind-air-flow-imperial-metric-converter/
Do they build in Brisbane area?
I don’t believe they do. But you could call Dale. Check out the description for the video.
Minimum R-value here is 41 for ceilings and 24 for walls.
Ed Vickery here is a converter for imperial to metric R-values.
efficiencymatrix.com/r-value-wind-air-flow-imperial-metric-converter/
What building wrap did they use?
MegaGouch On the outside, from memory i think they used CSR EnviroSeal
what about wood insects?
Wait... An R value of 6.8? Obviously that's not going to work in cold climate. Too bad. Lovely stuff that CLT.
Travis Williamson metric R-value, not imperial.
Aha!!! Didn't realize, but guess I should have. My bad. Great house tho!!!
The r values are very low. They don't seem to allow for an R of 1 per inch of wood either. My conventional frame house has R values of 20 to 30 and that was according to codes of over 35 years ago.
These are metric R-values.
efficiencymatrix.com/r-value-wind-air-flow-imperial-metric-converter/
R 3.9 and R 2.8 seems way under value. Here in the U. S. the passive solar homes have R30 in the walls and R 40+ in the roof. What gives ?
S Smith efficiencymatrix.com/r-value-wind-air-flow-imperial-metric-converter/
R value metric to imperial calculator. It also may be more temperate down under. 😉
BenjaminFranklin99 Benjamin, thanks for the comment! It’s very temperate weather down here with the kangaroos. It never snows.
@ there are now three clt manufacturing plants in montana and washington. smartlam, katerra and. vaughn brothers all have plants coming online. we will be seeing these homes soon all across the us.
I'm kind of exited about it myself. I helped smartlam prove the concept. we made alot of rig mats for the bakken. clt mats can be used for an astounding number of things. also with modern efficiant equipment the process can be zero gain as far as a co2 footprint is concerned and that is fantastic!
Their r value are calculated in meters and celcius. On minimal research looks like we'll need to multiply by r-value by 5.71. Don't quote me because I'm not an expert on this.
Wall insulation of 3+ and ceiling of 6+ . The windows have more than that. I am hoping there is some difference in countries. The US requires an R value of 19 minimum.
Australia uses a metric R-value. ;)
Efficiency Matrix then sorry to be such an oldie but a translation of what equals what would expand your base on u-tube here.
Marianne Oprisko “Both are a measure of how well a material resists the passage of heat, R-Value is the imperial measurement and RSI is the metric equivalent. To convert RSI to R-value multiply by 5.67826; to convert R-value to RSI divide by 5.67826.”
From my point of view, the problem with the passive houses is, that you need a lot of tech for ventilation to get all the wet air outside the building, so it won't mold.
The tech costs money to build in and to maintain, it needs energy and it can brake. Also you can't just open the windows, to get in fresh air. Am I right?
Not quite. Down sizing significantly the heating and cooling in most cases makes up for the cost of a ventilation system. Out of this ventilation system, you also get other air quality filtration benefits, which other homes cannot provide. Nothing is stopping anyone from opening windows. These ventilation systems do not use much power, and they do need to have their filters cleaned from time to time. Hope this helps.
Agree with you. What about on long term running a passive house. No plastic bag effect?
This kind of CLT construction has no vapor barrier and is breathing.
astsaf. Actually you can open
windows to get fresh air. My house is a laminated log house with gutex on the outside , triple pane windows ,but is not totally air tight . close ,but not to passive standard . I decided to NOT have an air exchanger and it seems to work out fine.
the client brief was to have no down pipes - I wonder why?
They didn’t like the look of them.
are we honestly excited about a house with an insulation value of R6!?? what am I missing here?
Buddy Guy This is Australia mate. We use metric r values and our climate is a lot more temperate down here.
@@ecoevo I'm in Canada, I would have assumed we used metric too...had to go google that - nope LOL
Around here we're talking about having R60+ now...
thanks for the quick reply! I learned something today ;)
+Buddy Guy keep your comments coming, buddy! R-60 sounds impressive.
@@ecoevo So your r-6 metric multiplied by 5.68 = r-34.08 American.
2drsdan efficiencymatrix.com/r-value-wind-air-flow-imperial-metric-converter/
33.3
it’s quite temperate down here.
What is so special in this structure ??
It’s special because it’s, been built well, and this building will allow its occupants to enjoy a comfortable and healthy environment to exist in during self isolation from COVID-19. 😌
Nice performing house, but from the outside it seems too cold.
I was surprised not to see the typical, inviting Australian ranch looking wrap-around-wooden deck with long, deep eaves, and I can understand that this was probably all calculated before hand, but the house seems a bit uninviting to the environment outside the house, and it seems too cold and impersonal to receive guests through the main door.
You have the house and then field of grass with nothing to break the contrast. There is no walkway, no landscaping. It seems like a box dropped on the field with no connection to its environment.
In addition, I have no idea what the weather is like at the site, but judging by the trees and green grass, I would expect a lot of rain, and I would expect a grated water channel or French drain covered with gravel all around the property to prevent water from touching the outside house walls at the ground level.
If I was paying for a home that is more expensive than the average home, I would want these details taken care before moving into the house to feel at home.
This, series is primarily dedicated to building performance, insulation consistency, building air tightness, ventilation and even solar passive + passive house design. We also covered this house before any landscaping was done. So where other shows will dedicate a show to how spectacular an architectural design actually looks, this show will cover, how the thermal bridging and air tightness was dealt with for a spectacular architectural feature.
Efficiency Matrix if you were in the restaurant business would you think of yourself as selling burgers 🍔 or selling a three course meal 🥩.
In my opinion, I think of you as a chef who is selling a three course meal, but a chef 👨🍳 who wants clients to return has to think of the presentation.
I personally would feel offended in having a three course meal in a Michelin starred restaurant if the potatoes 🥔 were served on top of my main course covered by a salad and hiding the main entree under lettuce leaves, but I would feel better if the salad was served in its own plate along with the required salad dressing, and my potatoes were served next to my main entree rather than on top of it.
How would you like your three course meal to be served on a Michelin starred restaurant?
Eric Kosak Nice analogy, so I’ll give you this one. If you were allergic(overhead on your immune system as opposed to your bank account) to egg which, symbolically is equivalent to gaps in insulation and excessive air leakage in a home. You then proceeded to tell the chef, of your condition but you are served a beautifully presented meal laced with egg which you can’t see, and they don’t bother telling you about, how happy would you be?
Efficiency Matrix I think there are few architects and builders that can do what you are doing.
So after so all the work you did, what is left to provide a nice (notice not luxurious or outstanding) overall presentation requires only a bit more of work.
Cost wise (materials and labor) in the USA it is not terribly expensive if done and planned at the time of construction. It is mainly a trenching machine around the perimeter of the house, two days top to place and cover a French drain with two or three people, a good carpenter with one or two helpers to build the deck for one to two weeks, and a landscaper working there for a week.
What is left in terms of work should be like sewing and singing for you, and it might elicit a possible smile from the owners of a house when they see their finished home for the first time.
It is up to you as you have said whether to do function over form, and I will leave it at that.
R8 ? From a North American R8 is a good triple pane window
Triple pane windows are more like R-5, but windows are usually rated by U values.
Couldn't help but think of the Drake meme (✋🏾 Down spouts) (👉🏾 Chains)
Please help me understand! I understand the English language well, but, alas, my first language is "American!" ;-) Seriously, I think your R-value scale is different from what's used here in the states...the numbers I heard 2-3 and 6-something. on our scale, that's "uninsulated" practcially! R13 is the absolute minimum anywhere, R19, R26 being common enough for walls. R30-something to R60-something for roofs. I'm sure it's a metric/imperial (F/C?) conversion type thing. Do you know how to make that conversion? I do speak metric, but, I tend to translate to imperial to make sense of it. Just curious how much R6 is in my scale.
just found something that I multiply your R value by 5.6 to get the imperial equivalent. Does that sound right?
Dan L It does sound right. 😉
Interesting.
So in the US, the walls would be 11.2-16.8, while the roof would be 33.6.
Living in the southeastern US (hot/humid 80% of the year), this makes me question what is more important for energy efficiency in my climate zone:
R-value or air tightness?
I was leaning toward R40 walls and R60 roof, but I had a feeling that would be overkill. It seems air tightness and r-value need to balance to keep from overspending or creating more problems with internal humidity.
Alan, air tightness would be the more critical in general. What I'd call the "first-money" topic. But, both are important. Once the air tightness is handled, you'll get more bang for the buck on whatever R-value you then add. Moisture, and all it's problems, typically follows the movement of air. Stopping that is critical. And if you can insulate in such a way as to add more later (thinking attic spaces), that's great for spreading the costs.
I lived in FL for 6 years, so I understand the hot/humid (and let's not leave out "HAZY") conundrum! I think another good option for the SE USA is a cold roof; basically a two-layer roof, with an air gap that's open to the environment. The top layer absorbs all the heat, but doesn't transfer into the attic spaces. "takes the heat off of" the insulation's job. (Literally.)
Dan L efficiencymatrix.com.au/r-value-wind-air-flow-imperial-metric-converter/ try this calculator out Dan.
How much it cost?.
Its a good question. But I believe it is more expensive than your average house here in Australia.
@@ecoevo Really? In Europe it's different, CLT houses are not expensive. There are some great builders even in Russia, they optimized suppliers and did everything correctly hence the right price. If I kept living there, I'd buy from them. Guess I have to wait until this technology becomes widespread and goes down in price in Australia :)
Whatever happened to the inertia home. that was supposed to revolutionize the whole housing industry
Do you mean solar passive?
@@ecoevo No. You should Look it up. They have videos on youtube. I was considering doing that as a new home before I got married. It's just like a passive solar home but a little different.
we did this where we clarify the differences to solar passive. Solar Passive Design or Passive House? Green Building. ua-cam.com/video/JYLACsHJuo0/v-deo.html
Tell me when this house will be passive. Using a metal facade. Great job using CLT, your facade really kills it for me. Looks great and all, thats just not smart to use, especially with that idea behind it.
my biggest concern is the night time air change rate and any health problems due to the insufficient outside air
Li Huan This home has 24/7 supply air to all bedrooms. The air quality in this home will be of much higher quality than a leaky home bedroom at nighttime.
efficiencymatrix.com.au/to-sleep-with-the-door-open-or-closed/
Efficiency Matrix thank you
I would love to have this translated into American 😂😂😂🙂🙂
Blue Phoenix I second this
Its hard to understand dinky di Awwwstralian, mate. I feel your pain. :P
Unless my eyes deceive me, that was an old fashioned water heater. Why didn't owners go tankless?
It's an advanced Sanden Heat pump actually. In cold climates, putting the water tank inside the building envelope is a fantastic idea actually. Sanden heat pump efficiency is super efficient technology, compared to instant.
SUPER!!!!!!!
I'm sorry but how could a solid wood house harvested in northern Europe and shipped to South Australia possibly be considered eco?
Daniel, I guess with every industry that begins in Australia, In most situations it starts by getting products shipped to Australia from overseas? As popularity is gained, investment can occur.
Since this home was constructed, i believe CLT panels are now being manufactured in Albury using Australian wood! Fantastic news. Good question. Thanks for watching our videos.
buildingconnection.com.au/2018/04/27/xlam-opens-cross-laminated-timber-plant-wodonga/
Wait.... You have a french car in ausralia...!
Sure!
Please REMOVE music,makes it hard to focus on actual talking
Hmmm, have tried it on another pc? Perhaps one of your channels is down?
Ho.. I seen the "gultex" it's high density wood fiber, the r value is 2.8 for 100mm... So the wood structure give something like r1...if it's the only insulation, then it's pretty weak and in no way it can be passive.
Even my shed got 200mm of this high density wood fiber.....
And he said extra layer for the roof, that's 200mm of wood fiber plus the wood structure something like 6.6... I find it pretty low too... I can't see this hous being passive, really. All this wood inside will give a decent inertia but... Not sure it will be sufficient in summer, and in winter.. The insulation will not be enough, heating will still be needed.
But kudos for encapsulating the whole slab, i did the same, it's the way to go.
You test the camera when the differential temperature in out is low... No wonder you can't see much variation in the image, try it in winter.
I know this vid is 2 years old but still need to comment.
Nice build but over complicated and probably costly materials. SIP panels will give you the same or better and cost less. Since the guy is concerned about eco, he should’ve thought about the carbon footprint to bring wood from Germany, not to mention the rest of the materials. Australia doesn’t manufacture anything or the sort ?!
Fred V. We are now producing CLT in Australia! SIP panels can be air tight too. We agree. 😉
0.32 air changes per hour is very good I guess but it still seems like a lot of air change? If you imagine how much air cubic meters are in a house, and all that is exchanged in 3 hours? Just curious how air gets pushed through the walls etc so easily. I guess if it wasn't like this people would suffocate all the time.
Dejay Rezme That leakage rate is with simulated 32km/h acting on the building envelope. 50pa or pressure differential to outside. Under normal conditions the ACH will be many times lower. Thanks.
Ah cheers. Thanks for the video!
Hempcrete, Lime/magnesium plaster
Can you make your videos more novice friendly? Explain more what you're talking about to people who are new to the idea.
We could try to do that! Thanks for the feedback.
Belarus 2021 Zabudova
Pellets wood chips
Good job to no stairs! But all buildings in the world are still far far far away from perfect including that one.
damysticalone87 If this one isn’t perfect, how about this one? ua-cam.com/video/qiry62_VZAM/v-deo.html
It sounds like he chewing the word, insulation every time he says it...
And you could be right about that. I’m going to blame the Australian Accent. 😆
Crikey.
Just see this video by chance. I did a very very similar house in France in 2010: CLT, insulation below the concrete slab, woodfiber, zehnder fan.....It works very well. Sunny days in winter, I don't use heating, sometimes if it rains more than one day I might light a fire (specific wood stove that is airtight). I live in the south of France close to the mediteranée and the main issue is summer heat (usually between 28 and 33°c in the shadow) then indoor temperature never go beyond 26°c , whitout AC. . About airtighness it was 6 times less the french standard required for this low consumption house, thanks to the CLT.
CLT, it is a french patent designed more than 30 years ago, but as French are good to invent but not very good to sell, they transfert the patent to an Austrian company (KLH) which develop the product well in Europe. Now that the patent is public and this why several companies can produce CLT. This technology is really amazing.
Of course everything was invented in France, haha. But if you ask an Italian, they will tell you that in fact everything was invented in Italy, including baguette, hahaha.
They need designer to make it look nice
>ship in materials from Europe
>require significant construction equipment like cranes
>sustainable
Romanian illegal wood lads?
Ramanach e www.binderholz.com/fileadmin/user_upload/pdf/approvals-certifications/PEFC_GB.pdf