The section at 2:53 - This refers to the angle of the sun ( *NOT the temperature!* ) Apologies if this has caused any confusion. The C was not meant to be there! 😅

@V.D.

10 күн бұрын

Oh no, it had to be my comment, so pity 😂

@crisdeeming2758

9 күн бұрын

Its called a safari roof landrover did it on their vehcles 50 years ago all but a little cruder due to the vehicle shape.

@walkerx1813

9 күн бұрын

I was just about to ask about that, I went back over that section a few times to see if I missed you referencing temperature caused by the sun's angle with the ground

@EnufIsTooMuch

6 күн бұрын

Good, solid, practical design work! About the double roof, this idea has been around for centuries, many cultures have figured it out. I've seen it done with desert tents, a large tarp spaced above the tent. Around forty years ago there was a medical office complex in Tucson, Arizona USA that did this with a stressed concrete roof above multiple independent single story buildings. It looked like a huge tent on multiple poles. The roof was on tall pillars, at least a ten foot clear space of free moving air above the buildings. The roof was large enough that the sun never touched the building walls. I was there for a dental appointment on a miserable day in August, temperature over 100F, and walking under that high roof the air was easily 15F cooler. Sadly, the complex lost the battle to modernization and real estate inflation. It was all torn down and a big ugly multi-story tower was built.

When people talk about "smart buildings", they often mean buildings with lots of sensors , electronics and complicated systems to regulate conditions inside. But truly smart buildings begin with designing a building so it doesn't need all of that or at least most) by placing relative to the sun, providing shae, using materials that absorb or release heat as necessary. In this sense this school is a particularly smart building

@TomasNovotny-ep5br

12 күн бұрын

The hard part is to figure out hot to make it simple. When you see the design and people say: ahh this is so simple...yeah when you see it working, it is 😂

@BuildNewTowns

10 күн бұрын

Exactly. I'm going to try to design some cool new, walkable towns with everything like this in mind.

@pongop

9 күн бұрын

Good point! The truly smart part is working with Nature instead of against her.

@fallinginthed33p

5 күн бұрын

Using local materials too.

For those who live in RV campers, they can tell you that adding a shade over the camper makes a massive difference when trying to keep cool. Wondering why this idea isn’t utilized more in the desert southwest of the US and other regions.

@xyztnce

23 күн бұрын

On us Mexico boundary they build houses with dome roofs with oculus small window which serves as hot air evaporative.

@whistlingsage9817

23 күн бұрын

I live in the desert southwest near the border with Mexico, and every year in the Spring and Fall we are treated to very heavy wind storms. We often see sustained winds of over 50 mph during the day that go on for many days, and an over-shelter like the one in the video would have to be very strong to withstand the winds here. We do use woven plastic mats stretched between poles like heavy dining flys over outdoor structures like playground sets and carports, but they only last a few years before they need to be replaced. Also, passive solar cooling stopped being a thing here when everyone got electricity. I'm not saying that passive solar cooling wouldn't be a good thing down here, just that it was cheaper to use existing building designs and hardware common in the rest of the U.S. than it was to design unique buildings for this region. Don't forget that price is always an important factor in building construction. It was cheaper to do what was already the standard in other parts of the country, and just run the evaporative cooler during the day to keep things cool. P.S. In the past we made buildings here with thick walls made from adobe, and they were very good at maintaining a liveable temperature inside them, but they also required a lot of upkeep, and the nature of the material limited what you could do with it.

@xyztnce

22 күн бұрын

@@whistlingsage9817 wind speed is good at your end so why not you try wind turbine. it will spin all day/night and contineous source of electricity. if your weather is hot only and not humid than evaporative cooling is best n cheap for you.

@thatguy7085

22 күн бұрын

Many camp resorts in Florida use this

@kwonekstrom2138

21 күн бұрын

It's not uncommon for people to have a fully covered porch or an "RV port" over a single wide. Another common thing I see in the desert is a second steel roof to act as a radiant barrier. This is often done as part of roof repairs after the spring winds.

For once, a good, practical, building wins an architectural award.

@stevensibbet5869

22 күн бұрын

It wins a dubious award only open to Muslims?

@CitiesTurnedToDust

6 күн бұрын

I agree, too often, the award winners are impractical, artsy, space wasting works of ego and stupidity.

Im a ventilation expert and business owner bringing natural cooling to the forefront, for people with and without much money. Love this story and yes the Venturi effect, convection abd thermal breaks are the key. Passive is the future.

@trainwreck420ish

17 күн бұрын

Frank lloyd Wright houses have been working like this since the 40s and John lautner also. FYI this isn't that new, it's just people actually pay attention to it now

@jtknight4647

17 күн бұрын

@@trainwreck420ish exactly, its new to many not to history. Same with WHF(whole house fans) 50 year old tech making a huge comeback. People just dont know what it is and i remind them its tried and true NOT new

@nullobject7966

9 күн бұрын

​@trainwreck420ish Do you have any resources that you recommend to learn more about passive heating/cooling? Books, websites, articles, physics concepts, literally anything. I'm going to build my first home on a budget next year, and looking to explore ways for passive heating/cooling. I'm very interested in geothermal.

@trainwreck420ish

9 күн бұрын

@nullobject7966 yea, here in KZread. There's thousands of hours of architecture and especially mid century modern architecture. I am biased towards frank lloyd Wright and John lautner as mentioned. The two wrote books about organic architecture and the reasons for building such a way. Also Albert Frey and Kendrick Kellogg are awesome as well. There's a quincy Jones Richard neutra and meis van Der Rohr. Try to find mid century modern architecture and stuff built before the widespread adoption of ac. Also Africa has been living for thousands of years without having air conditioning. Also Muslim countries have awesome technology for beating the heat. Towers and domes aren't just for looks.

@wilfredvanvalkenburgh2874

4 күн бұрын

​@@nullobject7966Wow! You have just asked a deeper question than you probably realized. Do you just want to know for your one house, or do you really want "to know"? If one house, what climate? Auburn University' Rural Studio might be a good place to start.

I once thought of a design here in the US for a mobile home park. Set up a solar panel system on top of the mobile homes that cover the entire roof, and have it raised to allow air flow between the roof and the panels. It would achieve three things. First it would be an entire electric power plant. Second help cool down the trailers. Third protect the roof of the trailers from rain which could over time leak into the trailer. What I didn't think of was an airplane foil.

@merrywalsh2809

13 күн бұрын

This is a great idea!

@OOICU812

13 күн бұрын

And perhaps you could sell any excess energy produced to power company.

@rachaellee2629

13 күн бұрын

Good idea but.... Roof fires...

@davidparker9676

12 күн бұрын

Mobile homes are the worst type of housing. Why make a carport for a mobile home when you can just build a real home without wheels under it and a design in all of the natural ventilation and insulation? Mobile homes make IKEA furniture look like fine-quality furniture. Nobody should permanently live in temporary housing.

@TheMissPoovey

11 күн бұрын

I’ve thought of that for parking lots at the airport. Miles of usable sunspace.

The point with the thick tombe walls is that the heat dispersed at night keeps the rooms pleasantly warm at night instead of too cold due to too quick heat dispersal. This makes optional night time use of these rooms practical as well.

@jmhatyoutube6283

21 күн бұрын

Thank you for that observation! I was wondering why on earth the architect would want to use a heat absorbing material instead of a heat reflecting one for the wall of this building. So, it’s about regulating temperature, not just cooling. That makes it even more interesting.

@Anonymous-sb9rr

6 күн бұрын

@@jmhatyoutube6283 It's about cooling. The walls cool down at night and absorb heat from the air during the day, which cools down the air. It could've used a reflective material on the outside, but who wants a reflective building? It's also in the shadow so I don't know how big the difference would really be. As you could see in the graph, it doesn't really get cold at night. Even in the coldest nights, it's still 15 degrees Celsius outside and it's gonna be a lot warmer inside.

local people solving local problems with global knowledge - thats the past, present and future of human kind.

@CUBETechie

22 күн бұрын

I love Francis Kéré s presentations especially in german they have this positive and enthusiastic energy

@Skidderoperator

15 күн бұрын

Locals must be white. Whites were making bricks in the video.

@pongop

9 күн бұрын

Yes, and by working with Nature!

We need much more architects like him!!!

This is a great common sense building. Thank you for presenting it to us. The ram used to make those blocks is an easily dismantled UN design that can be welded together in just about any steel fabrication shop. The basic model is powered by one person. No external power source required. The blocks are moist loam with around 3-5% cement and are air dried for a few weeks before being laid. I've been to a course on this tech and it's fascinating. Look up the CINVA ram for more information.

@bardmadsen6956

23 күн бұрын

They should do experiments to see if the can handle long term water saturation, if so you could wet the wall and it would be 10-15% cooler. I've been interested in passive homes since 1967 watching real hippies building a house of mud bricks, just as a interest over the years. I tiled swimming pools in the SW USA, thousands of them, in 122 degree F, near the end I would put up a 40'X20' 70% shade, like a knit nylon, and even had 12+ tiny misters. And only swam-coolers at home. I live past the 45th now and think why people don't build houses alike the arcane Russians with a central huge mass of masonry for the wood-stove/oven. The thinks I think of baking or freezing...

I wish there was some data provided in this video about the temperatures experienced within the building itself.

In SE Kansas we have an average summertime high of 93 with humidity. It's hot. But we pay no attention to natural solutions. We could learn from this design. Save a lot of energy.

@beth8775

23 күн бұрын

This roof structure might not stand up to the storms we get in tornado alley. I would love to see thermal mass get more attention though. Earth sheltered buildings are much safer in a tornado as well benefitting from the thermal mass.

@q.e.d.9112

23 күн бұрын

@@beth8775 I visited an “Earthship” rammed earth house in New Mexico during August, about a dozen years ago. It was 91 outside and 73 inside, mid afternoon.

@arcanondrum6543

22 күн бұрын

Well "...we pay no attention..." because capitalism wouldn't have it any other way. There's 300 million Americans, get one dollar from each of them once and you're wealthy. Get one dollar (or more) profit from each of them every month and you can own a television network and some Senators.

@MarcoArezzo76

22 күн бұрын

And what about strong winds? 🤔🤔

@brodriguez11000

21 күн бұрын

Current heat wave is well past that. Any future design will have to take climate change into account.

A friend of mind in Washington State has a triple-wide manufactured home. He added a “pole barn” roof 4 feet over his house. It not only provided shade in summer, which sometimes topped 105 degrees, but helped in winter as well with the “snow load”. He did extend the chimney from his fireplace up and through the added roof height to keep smoke from being trapped inter the added roof even though the “pole barn” was open aired on the sides, smoke could still be caught under it on no or low wind days. This was back in 1988……Cheers

If you want to see these techniques on an architectural scale, visit Taliesin West in Scottsdale Arizona. Frank Lloyd Wright designed his winter home and school with these techniques. He used skills developed by the long past native people in the desert southwest to use on the site. Anytime you are in the Phoenix area, please take a tour. It's very cool.

Thats pretty much the average temperature where I work in Australia (mining, remote areas) and we often use similar building strategies in the outback. The second roof is a common one. We also sometimes add native vegetation to encourage the development of microclimates.

The last 20 seconds or so was the most important. It just made sense. It wasn’t for an award, or energy star rating.

Outstanding. Think outside the box. Rely on AC and suffer when the power goes out.

@peterp5099

21 күн бұрын

Fortunately the solution comes in the same package as the problem. The same sun that creates the heat provides also the solar energy to run AC. With today’s technology, cooling is a much smaller problem than heating.

That's my favorite kind of intelligent building. Kudos to Diébédo Francis Kéré!

@GaiaCarney

23 күн бұрын

Yes! Diébédo Francis Kéré has gifted this community with a beautiful school building ☮️ I hope more can be built to benefit more children!

Find the hottest side of your home. If you put up a shade there, you will cool your entire home. It can be a cheap solution, try straw mats, bamboo shades or some kind of cloth. We cool our home with one window unit for our 3 bedroom house. Shades and awnings need to make a comeback.

Even my cats know laying under a car in the summer is where the cool breeze is.

And drop the temp by another 5 degrees by planting trees and plants around the garden.

@vsubhuti

17 күн бұрын

Why didn’t they add more greenery and tree water combinarn*

@flashrandom

14 күн бұрын

They may not grow

@user-sn7gb5cy2j

8 күн бұрын

@@vsubhutiit’s arid. They probably didn’t have much water

@mangakhawlhring3054

4 күн бұрын

If they can plant trees when and everywhere they wanted, it won't be a 'hot semi arid climate'

It's been over 100 degres (F) in my area for 3 weeks, hitting highs of around 114. We could definitely use this type of design. (Sacramento CA).

I like the concept. I wonder if that location experiences hurricane force winds. The external roof looks like a wing that could experience major lifting forces in such conditions.

@clarkpalace

23 күн бұрын

Zero hurricanes there

@jasondoust4935

23 күн бұрын

Glen Murcutt has done similar work decades ago in Australia's Northern Territory, where cyclonic wind forces are a major consideration. It's a different climate with different solutions, but it can work. Look it up.

@X4R2

23 күн бұрын

Theoretically the upper roof would be pushed down onto the lower roof because of the low pressure between them caused by the Venturi effect. Now whether that's really true, IDK. They'd have to measure the pressure above and below the upper roof during windy days.

@bruceparker6142

23 күн бұрын

@X4R2 I was thinking the other way around. Higher airflow above the upper roof resulting in low pressure and slower speeds below the upper roof resulting in high pressure. The pressure difference resulting in the air below the roof going from high pressure to low pressure causing lifting of the roof. Like an airplane wing.

@allegrosotto2126

22 күн бұрын

@@jasondoust4935Glenn Murcutt sadly still not respected for his wonderful designs. I attended a lecture of his years ago - very inspiring 👍

Left out the 4th, and most important strategy, which is to be located in a low-humidity area. Humidity makes ALL the difference in the world. Get in the shade in a hot arid location and you're good to go.

A good number of years ago I did some thermal analysis with SolidWorks Flow Simulation, a tool used for analyzing products like computers and phones, to do some basic probing on the idea of a shade over a roof. What I found was that there needed to be a pretty good size gap, similar to the one shown in this video, to make the concept effective. It is typical of passive flow, density driven flows need a ton of space because the driving force is low. If wind were the primary driver, you could reduce the gap, but then the strategy falls down on a calm sunny day. The holy grail is a passive geothermal heat pipe that uses water as the working fluid. Heating from above, cooling from below is stable though, and can't be used to drive circulation, the driver being changes in density. Ever wonder why the stuff at the top of a cooler can be warmer that the stuff at the bottom? Heating from above, cooling from below, flow shuts down, and with the thermal conductivity of air being so small, the column stratifies thermally. Fun fact, the thermal conductivity of the materials that thermal insulation are made from is actually pretty high compared to the insulation as furnished. The reason is simple, insulation has one job, keep air from moving. The drag induced by insulation nearly eliminates the effects of density driven flow. The Achilles heel, wind loading on the shade is high in storm conditions, so designing it to withstand high winds is probably cost prohibitive. Probably better off designing to be easy to repair than resist crazy wind that only comes around once every 10 years.

Brilliant! I love seeing passive cooling ideas.

As I watched this I was hoping for a temperature for the area which was said but, I wanted an internal temperature from inside the "no A/C needed" building. I think with the smart design, and available materials it's much better than normal building practices. However, I would venture to say it's probably not in the 70 degree range for an air conditioned structure. Very thoughtful!

@GlueTubber

17 күн бұрын

maybe not in the 70 degree range, but the heat-load is greatly reduced, and that means less A/C is needed to cool to the desired temp! :)

@keithsuggs7935

16 күн бұрын

@@GlueTubber Exactly what I was saying. Is it 30° cooler or 5°. Orientation of a building with respect to sun exposure can do a lot. Trees can produce almost miraculous results. Just wondering about the before and after.

@Elementaldomain

Күн бұрын

@@keithsuggs7935if you live in the desert, like I do, shade makes a lot of difference. I have double layered roof, airspace in between. Liquid silicone material on top of roll roofing. I would venture to say the temp drop inside their school is no more than ten degrees. A ten degree drop plus better shading via the Venturi roof helps….but people have to realize hot is still hot and those people are used to it, so the little difference makes a bigger difference for them rather than people who are used to more comfort in the states. It’s all relative…..😂

Fantastic and heart warming to see great thinking going into solving a local problem. Not looking for awards and accolades - just fixing a local problem and helping locals in a practical, wonderful way. Fantastic! Bravo!

Give us the statistics: Temperature in the sun, In the shade, and with the Venturi roof. Is it an open roof gap over a ceiling built as an inner roof? Are there vents in the ceiling? One side elevation shows a flat inner roof and curved outer roof, another shows a curved inner roof and curved outer roof. Which is it? Ventilated roofs over ceilings are common in hot countries. In Thailand the gable angle is very steep, about 50°, to allow the hot air to rise. Fans are used to create a breeze. In Thailand often a flat roof becomes an open air top floor over which a gable roof is built for extra shade, This floor is commonly used for clothes drying, which in itself reduces heat required to evaporate water. Bird wire is needed to stop flocks of birds nesting and pooping. The houses are often raised one floor height above a pond of water, or in modern times, above a car port, bathroom, laundry and open kitchen, Traditional houses did not have glass or fly wire, this allows full natural airflow. Mosquitoes and insects can be a problem and insect nets over beds are often required. Verandahs prevent the sun from shining on the walls, and usually have herbs and plants growing in them to the increase shade. Sometimes verandahs are so wide that there are no inner walls. I have 37°C in the carport at 4am in the morning. Thermal bricks hold the heat making the house hot at night. This choice is related to whether the temperature drops significantly at night. Concrete block houses do not cool at night in Thailand, and need airconditioning. The break through is the Venturi effect of the roof. I need to see statistical evidence of the increase in air flow. I am sure it would be an improvement.

@pansepot1490

5 күн бұрын

Yeah, looks like someone found a pop article online and just read it. Very scarse on details and no follow up whatsoever. According to the video this project won an award in 2004. *That’s 20 years ago!* well, if the design is so effective it must have spread far and wide, right? Where’s the photos of all the other buildings that have been built on the same principle? Are there any? Perhaps what works great on paper is not all that great irl?

@Elementaldomain

Күн бұрын

Click bait. I live in the desert. 95 is considered a balmy day - LOL. First of all, the people in Burkina Faso live in primitive conditions - the little relief they feel from the heat is different than people who are used to living in a country like the U.S. Secondly…..humidity, or lack thereof, plays a big difference. On a 8% humidity day here, even 95 doesn’t feel bad…..during Monsoon season that same temp can make you feel like you want to die. I have lived here since 1978. I have electricity but also am set up for off grid. I have compound style houses…..each is 10x12. Double layered roof with air space in between layers. Top layer is covered in liquid silicone roofing material - three coats I made evaporative coolers that run off a 100w stand alone solar system. Fan is 60w….pump is 20w. Standard 100A lithium batteries. My little houses are normal wood construction, wool inside wall insulation. 36x40” windows on three sides. On a 110 temp day, with low humidity…..inside each house is about 75 tops. I often have to wear a sweatshirt till mid morning.

@bobjuniel8683

Күн бұрын

@@Elementaldomain 👍Good I did not say "click bait." No problem. I believe,double roof with air flow in between, and maybe a sod topping and grass with automatic night watering if water is freely available. Heavy black plastic used for water sealing concrete slabs and walls, or over a timber, timber and iron or reinforced concrete slab all with plastic waterproofing, Consider reinforced concrete pillars and cement block walls with steel rods and infilled with cement for wall strength. Then mound earth up to the inner ceiling roof at an angle of 30° from the ground, grassed, the walls plastic waterproofed. Door and widows double glazed gas filled. I cannot do the engineering safety calculations. Imported steel and concrete are very expensive compared to local timber. Different tooling and jigs or boxing adds expense. 12' X 12' or 3.6m X 3.6m is the concrete slab module and 4' X 4' or 1.2m X1.2m is the strong timber floor stump spacing module. Wall timbers are at 2' or 600mm centres spacing. So 12' X 12' module are cheapest to build. Consider 12' X 18' living plus 6' X12' wet room Shower, basin, toilet, washing machine or trough. The kitchen sink and cooking area along the 12" inner wall on the opposite side to the wet room. All plumbing close. In simple timber cottages for a couple, the wet room was separate to the house for odour exclusion. We used to go to the toilet outside, and eat inside. Now we cook and eat outside and go to the toilet inside. The Asian wet area and eating open air downstairs and sleeping upstairs with the cooler evening breeze works but it requires an expensive staircase, and dust and no security from people. Insect and animal life is a factor to consider, Families live side by side, and they have watch dogs, if a dog bites you and you kill it you can go to jail. Every system has its strengths and weaknesses. I admire your building initiatives. Well done, 👍✅

Easy and relatively simple way to build the school and keep it temperature controlled,without using electricity or other power sources, in a very hot location! This is a brilliant solution to an increasingly overheated world! Bravo!!

Loved that it was designed by a local architect who understood the requirements and built and affordable, functional building

Very interesting. One point though: in the photos and also from Kere's own website, the roof seems flat, and not curved as in 2:06.

So what is the temperature inside of the classroom?

I love when simple solutions are intelligently applied. Bravo.

I first heard about these grass roots concepts in the Barefoot College Ted Talk. Love this stuff.

They study in schools in the heat because they have no other option. Unlike most readers here, I've actually been inside a school on the edge of the Sahara where it was 112F in the shade and no electricity around. The only AC I saw that entire week was in my room in N'Djamena, and in a pharmacy that I had to visit when I got sick. (Pro tip: Don't drink the water. And don't eat the food). And yes, people gathered in hot buildings to do their school and their work ...because there's no other option. But if someone wants to put a swank roof on these buildings and cool them down, heck yeah - let's have more of it!

Absolutely brilliant ❤❤❤

Wow, built such a great design with almost no infrastructure is a great achievement!

Yeah Africa had mad houses. It’s cool during the day and warm at night cuz it gets cool at night . It’s just perfect

Love it!!! Please do more videos on passive cooling designs. Thank you!

@SaraSaadouni_TAC

22 күн бұрын

Very glad you like it! More to come 💪🏽

This is amazing and inspiring! Great strategy for living in hot and extreme climates. Another good strategy is dome roofs. And my favorite strategy of all is building (and growing food) underground, like with earthships, hobbit holes, and the Forestiere Underground Gardens, in Fresno, California. The Underground Gardens are an excellent example and definitely worth checking out! Thank you for this video!

It's like Texas! I hope to build a new small home soon. I will keep these tips in mind. Heidi

Brilliant!

Dr. Ye Tao uses similar approach to cool roofs in Freetown. Moreover, he ads reflective layer on roof to reflect more sun rays back. Incredible how simple solutions can be so effective. Hope more architects will learn such hacks 👍🌍🕊

@Elementaldomain

Күн бұрын

Yes. Desert dweller here, liquid white silicone roofing material, three layers thick. It’s not that cheap white stuff you buy at Home Depot, it really is thick.

I like being able to go to my basement in the summer .

Simplicity is still the ultimate sophistication.

Many old buildings in Europe, like churches or monasterys, are build with stone walls of like 3 or 4 feet thickness. They stay cool all over summer as when the stones are finally heated up, summer is over.

95F is a cool day in western Texas to Phoenix AZ. In the southwestern area of the US temperatures can exceed 120°F / 48.9°C, Architect Frank Lloyd Wright designed a few buildings located near Phoenix to be cool in those high temperatures. Also homes in the American in southwest once used construction principles that allowed air to flow which kept them cooler. The Arabian area also built structures that stayed cool during extreme temperatures.

@Elementaldomain

Күн бұрын

Yeah….I laughed at that. I live in the High Desert now, but used to live in Palm Springs. I would run at night and it was still 120 at midnight. 😂

Sounds good. But we'd love to see some actual historical indoor temperature data taken over a few years time. How hard is that to do?

@iron4ig

24 күн бұрын

Yeah. Without this data it's only bla bla bla

@Dan0__

23 күн бұрын

I was hoping to find that information here in the comments. Personally, I don't need years of data (although I definitely see the value in that), but a quick example comparing outdoor and indoor temps would spark further interest.

@sandasturner9529

23 күн бұрын

About as hard as flushing the toilet in public restrooms 😞😨

@raj66kas

23 күн бұрын

​@@iron4ig you don't need data, just asked the kids using the facility.

@guyburgwin5675

18 күн бұрын

Just what I thought. I don't say it doesn't work, I just want to know what they deem comfortable. A wonderful design in any case.

Saw a few years ago a television programme by the British adventurer / outdoors man Ray Mears. He was in North Africa around the Sahara Desert. He had a Land Rover parked up. He said that he would normally use two parachute fabric covers spaced approximately 30cm apart. He said this kept the temperature down a considerable amout in comparison to a single layer.

Listening to this, even reading a telephone book, would never bore me.

This is a naturally smart building!

02:55 Angles are measured in degrees or radians, and not in degrees Centigrade.

@SaraSaadouni_TAC

24 күн бұрын

Well spotted! The C was a mistake! Those are meant to be the angles of the sun ☀️

@mikesasges377

22 күн бұрын

You should also mention that the whole point of the high air speed Venturi is to cause a low pressure zone that will literally suck hot air up through the perforated ceiling.

@mikeguitar9769

21 күн бұрын

lol, those are degrees celestial!

Great information. Thank you!

Switch uses this same technique for their data centers here in Las Vegas. A double layer roof, high albedo layer (on top), and they use cooling towers to push cool air between the upper roof and the lower roof.

Thia is exactly the ideas that need to be inforporated everywhere around the world since the flimate is heating. Im from eastern europe and 20 years ago when i was kid i rememebr summers being much midler than now. In most apartments people now must have ac's or they cant live comfortably. New building are so badly planned,no roof overhang, huge floor to ceiling windows facing south. No large trees around the house. Absolutely crazy that elthey think ac is going to solve all that. Well good luck

This kind of architecture is called "using common sense". We need more of this not only in realty, but also everyday life.

Roughly 20 years ago, Dwell featured a home in the Southern California desert near Joshua Tree called the “Desert Shed.” It featured 3 main features: 1. A concrete slab that was at least double the amount of a normal 1500sq ft home with the house built directly on top of it (to reduce temperature swings from such a massive slab), 2. A metal roof built up over the house for the previously mentioned venturi effect, and 3. The house was south on the slab with its windows facing south to gain solar energy in the winter and take advantage of full shade in the summer.

You forgot to mention that the earth bricks also release heat towards the classroom for many hours therefore the perforation of the ceiling so this heat is also released out of the classrom

Thank you for highlighting this genius design!

Keep it simple and stupid! No one knows more to use this phrase than Mr. Kere! Whe can learn a lot from him! Thank you for your ideas!

@jmhatyoutube6283

21 күн бұрын

I believe the phrase you’re looking for is, “Keep it simple, Stupid!”

Also a very nice looking design

Thanks for this video. I’ve known before about this project, but your explanation about it, pointing out why one option was better than others, was great.

Your video was very excitng. I know it may not have been intendended, but it was EXCITING.

A House built under the large tree shades is way more cooler than any other house making technology out there...I've seen this kind of a marvelous design in indian village.

I'm loving that roof!

This system works best in arid climes where the humidity is low. With high temperature/high humidity situations, natural cooling is much harder to achieve, though this might be as good as any.

So pretty much what is common at least with the double shading having a roof over a roof or a canopy to take the most direct heat of the sun. But pretty ingenious design itself. I bet even common jars of water near the ceiling may be employed to reduce the heat by evaporated water

The best part about passive designs is you can slap air conditioning on top of them and it'll barely run, but when it really does get that hot where your passive design allows the temperature to rise past 80F, you have the option of turning the AC on. Sure, without the insulation typical in the AC paradigm of an American home the AC will be less efficient, but with all of the passive energy savings you already have, that's okay.

I've seen a similar design on a winery in Mosel, worked great. Cool inside even with 35 deg C outside,

Intelligent design. It just makes sense!

Very efficient, functional and beautiful design.

Very well presented and thought provoking. Thx

What a wonderful job.

I wonder about heat mitigation all the time with my businesses. We rely so heavily on mechanical HVAC solutions in single floor plazas. When an HVAC isnt working correctly the flaws in the structures we have to passively mitigate heat or cool are extremely noticeable. Planting a tree to give shade is a 50 year solution and not practical in a commercial sense. So having a secondary roof is something i def would like to explore

Such an elegant solution! The architect was excellent, and so was the explanation. One other thing about air conditioning, it dumps the heat taken out of the inside of the building to the outside, making areas around the buildings with a/c even hotter. Also given human nature where when a/c is available they often crank it up so it is freezing inside, instead of just comfortable, wasting energy. This was a great video, would have liked to know the temps inside the building when outside is 40 deg.C. How much it can cool?

Well done team!

Hallo Sara. Let me first thank you for your amazing work: for your efforts to advertise the beauty of a modern and more sustainable Word trough the architecture point of view. I do really hope that more and more people will fall in love with the subjects that you show us. Please consider the idea of making a video about how to transform an old and inefficient house in a more efficient house 🏠. Thanks

@SaraSaadouni_TAC

4 күн бұрын

Thank you for your comment 🙏🏽 sounds like a great idea and I’ll definitely add it to the list 👍🏽

And now ad a super white coating on the outer roof.

Very well explained. Thank you.

Fantastic!!!

Cool, in every sense of the word.

Dirty Simple and Beautiful... As Diamonds in the Rough should be...

I live in areas where temperatures soar upto 48c max and 40c on average. One of problem is low air flow. In desert air flow is good. But biggest problem for us is rainy season with too much humidity. Hot weather lasts for 2 months but humidity weather lasts 6.5 months. Is there any passive cooling method for humidity free homes ?

@raj66kas

23 күн бұрын

I think there's a video from India about cooling without AC. Something about creating a wall of clay cones shaped like bottles.

@xyztnce

22 күн бұрын

@@raj66kas Yes an Indian engineer created terracota clay based waster cooling system. But its for hot weather only. when you use water than humidity increases and i need a solution for humidity.

@mikeguitar9769

21 күн бұрын

That is challenging. What energy sources are available? Are there streams or rivers to use for hydropower? Is there much firewood? Is there any sunshine during those 6.5 months? Wind power? Reducing humidity typically requires compressor-based air conditioning, or desiccants that need to be dried generally with a heat source.

@mikeguitar9769

21 күн бұрын

If you live near the ocean you could pump very deep cold ocean water up and humidity would condense on it. The dew point of the air would be reduced down to the water temperature.

@xyztnce

9 күн бұрын

@@mikeguitar9769 Thanks. But i don't live near an ocean or water stream. Only option left for us is compressor based air conditioners. desiccants can be a good starting point for me. I live in Pakistan and pink himalyan salt mine is here. salt mine is also humidity free and has pleasant temperature inside. Thinking about using salt slabs or stones. Place salt in room attach a fan let's see how much humidity it can control. I also found out that there are some salt rooms made for therapies and they have no humidity inside.

Great innovation. Bravo!

Exceedingly interesting!

You may want to check out the works of Hassan Fathy from the 1930's. Not much is left after him - the mosque in Gourna, the Gourna marketplace, few houses there & in Cairo, etc. He exploited these ventillation ideas already with excellent design and arrangement of functional spaces. What we call sustainable architecture (in this context here) was already outlined in his book the 'Architecture for the poor'. I visited his Gourna buildings and they work so brilliant in every respect. Btw. 35 C is absolutely tolerable there, because the air is dry.

@SaraSaadouni_TAC

3 күн бұрын

Thank you for this! I came across Hassan Fathy in Architecture school and I was amazed by his work! I’ll look into it more ☺️

Barakellah fik for make me discover Francis kere

It would of been nice to know the temperatures actually achieved inside the building as this is the real proof of concept.

This is nice. Thank you for sharing this

Very well explained a d very interesting. Thanks!

Energy star score, that's amusing.

First of all, great job on the design. Great usage of physics. If only more peоple would use logic like this. Second, I don't know where are you from, but 35 degrees celsius is a mild temperature for a big part of the world. Almost the whole Mediterranean (Spain, South Italy, the Balkan peninsula, Turkie ...), the Middle East, North Africa etc are experiencing temperatures above 50 degrees celsius for 3 moths a year or more.

I missed the part that told just what the "cool" temperature inside is.

So interesting, well written and explained.

in india they use a woven drape made from vetiver (aka khus, Chrysopogon zizanioides) roots which is periodically made wet with water using spray guns to keep cool since before air conditioners were invented

I mean, this is the real deal. Here we are in America designing houses. I’m building them pretty much the same way with the same heating systems and insulation stuff in the past hundred years. But there’s so much we could be doing to work with nature, and said I

@Objectified

7 күн бұрын

You mean wood-framed? We still build that way because it works. And if you're not using modern materials, products, and concepts to design, build, and finish your homes you're doing it wrong. Modern American homes are extremely energy efficient, weather-tight, highly durable, all but obviate concerns over pests, and are built to deal with the environmental needs of the locations in which they are built. Oh, the horror!

I'm watching this video from my earth sheltered, partially underground home in the Ozarks, so I'm particularly interested in passive design. I've often wondered if underground buildings are feasible in very hot climates like this. For instance, our design had to focus on surface water management and collection because we get a lot of rain. I imagine flooding during a raining season as a limiting factor for underground building design.

Award winning school in 2004 and built in 2001 as the development of passive house was beginning. Hopefully, with the modeling programs available and institutions available to provide grants or funds the possibility to go beyond this has greatly improved. Either PHI or PHIUS would work in this climate and the cost for insulation and forced air not so great. According to one comment the internal temperatures during the day were not mentioned? Considering the location, basically daylight and darkness hours the same during the year, early morning classes and later evening classes could be good until the building is upgraded to more current standards. What was achieved was very good, but well outdated, now.

The best structure to have in very dry very hot climates are underground structures, look at Coober Pedy in Australia. These houses are cool all year round.