The Passive Design Combo That Saves 88% Of Energy

That volcano-shape roof is like traditional Joglo roof in Java island. Joglo roof has been used for hundreds of years back as the construction was depicted in the Borobudur temple relief carvings circa 700 AD.

The function is the same, it draws the heat up the roof and circulates it outside. That Joglo roof can be 10-12 metres high, with thatched roofing or pottery tiled roofing.

The Dutch East Indies houses also applied the same kind of roof, usually very high hip roof with no attic.

You can't really earth shelter in areas prone to flooding, so what do you do then?

I would def love to learn about how partially dropping a building into the ground would drop it's energy needs! Thanks!

I've noticed a lot (all?) of these eco friendly buildings are built for either dry or temperate climates. Is there an eco friendly building for humid climates that get very hot and cold?

This is an excellent description of passive Heating and Cooling.
The application to Mobil Homes might provide some practical assistance in solving World energy issues.
The USA has a considerable number of Wobbly Box Homes that could benefit from the technology.

This is all under the umbrella of passive solar design. A very interesting and under utilized strategy in architecture, IMO.

I believe it should be mandatory on all new builds.

People in the comments asking about humid locations and other scenarios, there are passive solar improvements to be had in those areas, as well.

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It has to be said that Knokke-Heist is one of the richest places in the country. Very elitist, very high taxes.
The school is called 'the most beautiful school of Flanders', so it's unique and not a standard.
So I was sceptical about this and looked up the price: 9.3 MILLION EURO!!!
And the plan is to build 400 additional (normal) homes right next to it which will further degrade the natural environment.
So you know what the plan is. Attract more rich folks - to generate taxes - who are infatuated with the nice 'passive' style, so they can brag that their kids attend a passive school.

Explain to me how that money was earned in the first place, and how it was spent on resources, transport, building companies, architects....
Conclusion: Rich elitist GREENWASHING project that has certainly done much more damage than good and provides absolutely nothing for the environment.
This stuff is ridiculous and really pisses me off!! We need low cost natural buildings, with local resources, not fancy greenwashing projects so rich people can feel good about themselves!
Don't fall for the illusion!

This was a GREAT video for information about how to build a natural ventilated living space.

Your stupid comment about 'climate change' just put your intellect into the toilet! Al Gore called it, 'global warming'! That is, until it didn't FIT the narrative. Anyone who spews the 'climate change' crap is definitely just stupid. The World temperature has changed throughout time, so STOP with the BS and just stick to a better, more economical way to build things.

your dedication to your viewers is clear in every video!

Buried tubes in a moist environment can lean to mold buildup in the pipes, toxic black mold disease.

I get the concept. I just have serious concerns about maintenance and upkeep. (Mold, fungus vermin, condensate) That's a lot of buried ductwork to keep clean.

I came, I saw, I subscribed!

Underground fresh air inlets have been tried and found to produce very poor damp air in practice. Schools should use MVHR to control CO2 and save energy.

Yes plz create tht video on the benefits of burying homes in the earth

When we bought our house, the first thing that I noticed was the basement had space for an office. I put my office down there and this summer, we’ve barely had the AC turn on. The basement produces so much cold air that I leave the fan on 24/7 and just pump the cold air upstairs. We got a heat pump last autumn and that changed the game too. We got rid of the Oil, ran the thermostat 6° hotter than we did the year before, and still saved USD 1000 Compared to the year before

Interesting there is no HRV heat exchanger shown.

This is unmaintainable, which means you should avoid it.
Insects, dust, bacteria, fungi in tubes - you will inhale it. Of course, you can install HEPA filters, but unclean tubes will reduce airflow, then you reduce it further with a filter. One day it stops.

The air inlet piping is 200mm in diameter but what length does it have to be to be effective. I understand the volcano, hot air rises and as it exit it pulls air from the cooled air from the underground inlet. But as winter cold air sinks, what is the dynamic that utilizes the inlet pipes. It seems there is nothing to pull air into the inlet, except maybe mechanical devices.

My dad, USC Architect Emeritus, used this earth tunnel concept in the 1980s. Only thing he told me about.

Very interesting video! Maybe a more in depth video of installation details, pro and cons of the Canadian tunnel for various situations could be interesting :).

Seems great, just wonder about picking up radon gas.

good

it's a modern grub hut (Grubenhaeuse sp?). Strategy had Been used for 100s of years in some areas. Whatever is old is new again.

Here in Europe, and in much of the rest of the world, far too many residential and workplace buildings are being designed and built to the lowest budget or bid, putting speed and build profit today ahead of running costs and comfort tomorrow. Except for small experimental projects such as this and private commissions, it’s difficult to see these kind of methods and expenditure becoming commonplace without a significant sea-change somewhere.

uh. I grew up in South Alabama, we've had passive cooling systems for a few hundred years. There is one home in South Florida that keeps the whole building well temperature regulated by using bimetallic springs (huge ones) to actuate wood louvers inside the hollow walls to keep it around 72F year round. Awesome design.

16 C at 2 m depth? Are you kidding?

The Hawaii state capitol building is built to resemble a volcano exactly this way.

i love your content. tahnk you

Do you think this type of implementation can be beneficial in tropical areas in the Caribbean, where cooling is the need? If you do, can you explain how this system will achieve cooler temperatures such that A/C is not required or at a minimum significantly reduced?

thank you!

They immediately whine about climate change, then wax on about how energy intensive the materials and construction were. How many tons of CO2 was generated to build this?

This is really what I feel architecture is about - functionality. We're going to need more solutions like this as our climate becomes more extreme and unpredictable.

FUNCTIONAL CUPOLAS.

Thank you for this, very nice idea kindly explained.
A note: K is for Kelvin, k is for kilos => kWh/m²/year

One concern I see is radon gas issues with this design. Exposure to it in areas that are not continually swept by airflow will be a real issue. And yes, I see the flow from the "volcano" but with furniture placement and corners, the flow doesn't necessarily get there.

Stop with the climate change lingo.. there is no such thing as climate change.

i live in the same climate and would ölove to incorporate this in my future home, i've seen so many cool videos on those air tunnels and how they work! they're apparently way more common in very hot climates where they built entire towers as air catchers!

triple pane windows are just the new standard for european countries in this climate tho, they're nothing unusual or overly expensive generally

All fine and dandy except for "climate change"....

Those techniques have been used for 100s of yrs in the middle east, called Wind towers, or Barjeel.

The color of the top is change the temperature of the house That it very very gent, Maybe white color on the top is good choice!

I feel like this will be a budget Panamera…

Is the air filtered for mold in the ventilation channels? As there will be moist inside the pipes - mold will form and contaminate the air quality

130 KWh/sq meter? Seems pretty high. My current apartment is using about 42 KWh/sq m/day... Efficiencies vary, and this is a nicer, newer, more efficient building. Perhaps she's referring to buildings built 50 years ago, etc.. Either way, the point that if we build with efficiency in mind, and build long lasting buildings, we can save both energy and building waste over time. This is very similar to Earthships from Michael Reynolds out of Taos, NM. His philosophy is simple: Architects are the ones that can save this planet, by simply using more intelligent designs. Bravo Sara! We need more of this!

Not hating on you, but lots of meaningless hand gestures that detract more than you might realize. Hand gestures can be very effective if they are meaningful. Your content certainly is.

I'm very very interested in this topic and I would really like to learn more!
For instance, regarding the air tunnel, it would be nice to know more details such as a correlation between the length of the pipe needed and the amount of cubic space that you want to preheat. I must say that these 25-50m with 20cm pipe doesn't really sound enough for a whole kindergarten? Are you sure that is correct?
Also, condensation seems as a main issue for me. It's quite easy for mold to grow in those pipes even though the slope will surely get rid of the most of the condensated water. Any more info on that? I would have many more questions but well, these two are enough for now 🙂
Thank you for interesting and informative video!

I get that this building is expensive but these tricks can be used with less expensive materials, right? And you can build - as in this example - schools and post and offices and government buildings this way where people are the most during the day - helps already a lot.
Muchmuchmuch more architects should at least think about it and incorporate such passive elements (according to the needs of a building if course).
I love it and thank you for sharing.

The building roof looks like javanese traditional building…

45 C* Any option?

Wait...what, no mechanical equipment!?! Big M better start looking for a new gig! 😛😛😛