A Walk Through a Straw Bale Passive House
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- čas přidán 21. 08. 2024
- Episode 2
EcoEvo Design, covers an Australian Regional Victorian Straw Bale Passivhaus home. We cover the luxurious and key energy efficiency features of this stunningly built home built by Passive House Services. We cover the building envelope features, and blower door testing the home, in order to help people understand what it means to have a high performing building envelope. Straw Bale is a great way to build a home in Australia.
#ecoevo #buildingperformance
Passive House Services
www.passivehouse.services
Efficiency Matrix
www.efficiencymatrix.com.au
Hosted by Joseph Cheung & John Konstantakopoulos
Huff and Puff Constructions
glassford.com....
Ventilation = HRV - Zehnder ComfoAir Q450 TR with integrated Daikin FDXS35 Bulkhead split unit:
www.fantechhhv....
#strawbalehome #passivehaus #ecoevo - Zábava
Brilliant video, super informative, congratulations John, a genuinely inspiring project !! For an additional 6% or so construction cost, when you consider all the benefits and also the energy savings, adopting passive haus construction really is a no brainer.
Hay is what is used in some animal feed, straw is the leftover byproduct that no animal eats. Besides some usage as a roughage an animal can starve to death eating it as it has almost no nutritional content. I'm sure most people consider it the same thing and he mentions its hay. I'm sure its just a slip of the tongue by the house owner but I thought it's important to point this out.
Zenguin thanks for pointing that out!
Pretty sure the owner tried correcting them by telling them it had no seed or anything. They couldn't seem to couldn't let go of the misplaced and incorrect humor of it though.
I learned something new at every point he made.
Love your videos guys, thanks so much for providing such detailed technical and installation information. Very inspiring for a future owner-builder.
Great video👍 looks like straw bale construction has matured! There is a lot of good info in this video and I hope to share some of it with my students who are learning about sustainability. It’s a shame that main stream construction is still a good decade behind other western countries in building science. We need to learn about the’ the house as a system’, which is shown in this video. Congrats to John for making the effort to produce this.
Thanks Jan! Thanks for your feedback.
Thanks for sharing such detailed information. I am about to build a passivhaus in Spain and I am glad to see that I picked some common components and solutions. I have the feeling that many architects and passivhaus professionals keep that information for themselves in order to get as much profit as possible. However I think that is possible to share solutions for free and still get even more profit this way.
All is well! Empowering consumers is important stuff.
A passive is easier to build then you might think. Good insulation ( in Germany between 25-30 cm thick insulation - you are in Spain = more sun in the winter), triple glass windows to the south, no window to the north, some solar panels - those are the tricks. Maybe you can use a Trombe wall to heat in the winter.
Thanks for your answer. Yes, I also think it shouldn't be that difficult, but some Passiv professionals try to scare customers. I actually bought the PHPP9 software and did the calculations myself because Passiv architects asked me for double price a standard architect fee. I was surprised that solar panels don't help much to get the Passivhaus certificate and Spain, besides the sun, is the only country in the world with a tax to the sun... Meaning is cheaper to invest in insulation or windows than solar panels. As you addressed, 15 cm for the walls, 25 cm for the roof and 10 cm for the foundation is enough in Spain. Triple glass for every window and as much glass as possible to the South. Good that there are people like you trying to attract people to the Passivhaus principles.Thanks again.
You will get good insulation with materials like wood fiber insulation or hemp. Take some centimeters more. The walls should always be better insulated than the windows. Else you might have problems with moisture in the walls.
Well the architects. In Germany they take around 10% of the costs of the house. The more it costs, the more they can earn.
There are historic artifacts of houses that there build 2000-3000 years ago. Can find them for instance around lake Constance. People analysed the artifacts and the Discovery? If those people had modern windows and doors that we have now, the houses from that time would be close to Passive Standard! Funny. Isn't it? 3000 years ago people could have build such warm houses. With NO MONEY! Only wood and ax.
www.pfahlbauten.de/
that bench top is amazing!
Jacinta Anderson It was a gorgeous piece of old wood. 😉
Cows don’t eat straw. They eat hay and alfalfa. Straw is the left over stalks from wheat.
Be a lot cheaper to feed cows if they did. But think of all the hats be munched in the summer😂.
Thank you very much.
Cool! Great!
More and more R&D!
Standardization
Unification
Modularization
Some really great systems, thanks for sharing. I wish your dog well. It's great when animals survive cancer.
They were such well behaved dogs. 😉
First Rate! Real Class! Well done! Mate!
No air/oxygen in contact with the straw. Very well done. Never let any contact, or it'll burn.
STRAW: Bedding. HAY: Food
gorgeous!
Great video and wonderful haus..
La Voltare thanks! We hope to do many more.
Hi. Very informative video! Can you share the name of the "completely sealed treatment plant"? I'd like to look that up. Thanks!
One of the benefits of a passive house type system people mention is that little added heat is necessary to maintain a comfortable temperature in winter. And they'll say body heat and heat from appliances and cooking etc. provide the majority of the heating needed. But if body heat and appliance usage has this effect, is cooling a passive house in hot regions a problem? I don't know what the summer temperatures are where this straw house is located but maybe this is why the water heater is located outside the house.
Cooling tubes have been used in hot New Mexico summers. They run a number of feet below the surface. It comes into the home from low wall registers and usually exits a high vent on the other side of the home for air flow and draft.
One of the major misconceptions about passive house is that it overheat more in summer compare to a conventional house. People often forgot windows in a passive house can also be opened. In cool summer nights, Passive house occupants can open the windows and the breeze to cool the house down just like any other house. During the hot days, a passive house is way more effective to reduce being heating up through better insulations, well designed shading and airtight construction. In occations, the occupants may need some level of refrigerative cooling, but it will always outperform conventional build.
in parts of peru cob/straw houses that were built in the early 1900's have very tall ceilings to help cool the house during summer. this was b4 ac was invented obviously
With the exponential increase in wood construction materials in 2021/2022, I'd be curious if the 6% premium would still be present? I imagine this would now be a far less expensive way to build than a conventional house. He mentioned $500kAUD. That would be about $370kUS. I've been quoted $350/sqft for a conventional, (not premium) standard build.
my dad rendered that. australian render systems.
Straw is not hay. Straw is what is left over when wheat, rice, barley, etc. are harvested and the grain has been removed. Livestock such as cattle don't eat straw, they eat hay. Straw is used for livestock bedding and is a byproduct of grain production. Other than that this video was informative and inspiring.
Literally a house made of straw....🤣🤣🤣 👍👍
A question out of interest....If the straw in compacted to the point of there not being any air in it, would that make the insulation value worst than if it had been left non-compacted? (I honestly don't know. perhaps the fact that the walls are that thick it wouldn't matter perhaps?) Also if the straw is that compacted, how is it breathable? I ask only out of my own ignorance and the want of an answer as I plan to build my own house in the future.
There are still small pockets of air inside the strawbale. I suggest you contact huff and puff for more details, Their website is in the description of this video. 👍🏻. glassford.com.au/main/
Did I misunderstand what he said about the price? Did he say the total build was $25,000?
When water does find its way to the strawbale will it rot?
Plant some trees ( or start a forrest garden) around and the place will drown in greeenery after several years.
That comment about keeping dead bodies down there lol
R 6 Walls? are they using a different scale then in Canada? in Canada walls are around R15 in older houses.. I would expect a much larger number for such a think wall...Is the straw compacted too much?
they say R36 (imperial) shortly after saying R6
From my study you can have up to R50. Ceilings these days I would recommend in higher latitudes to go R-80 to R-100 just to consider future loss of cheap fossil fuels (in the USA we think we have only about 15 years at current consumption rates of the liquid fracks.)
The wood boxes around the straw is probably a bit more heat conductor, so less efficient. But doesn't seem a problem with the climate where he lives
@@kirkvillelocomotiveworks4691 I didn't notice that, I'll have to watch it again. Thanks
A passive house is great but it depends also on the climate you’re living. The more cold area you’re in the nicer the past of house works. The kitchen area to suck the greasy and steamy airflow from the heaters that should be separated and all the call filter thing is nice but it takes a lot of costs and a lot of maintenance and in long on the long term you can put in the valves approval which prevent the airflow a passive house but it is a really no no I agree but in the warmer climates it’s better to just do a sucking engine Ireland and put the air-out.
Love the videos but confused on some of the numbers and comments in the video. In the previous video on the CLT house it has text in the video saying passive house certification requires .6 ACH. How can the straw bale house be the answer, or even passive house certified, when it is 1.0 ACH. Also the CLT house is rated at .33 ACH so based on this I would think CLT is the answer.
Sean Kinmonth The Strawbale home is low energy passive house. Wraps can be just as air tight as CLT. It just depends on the quality of installation.
Great house...great video overall. But I am going to be honest how I feel about the tour in itself. We get the run down how this was built in the beginning, but the entire tour is stop in a room and talk way too much and I find myself drifting off.
Remarkably small blower door fan.
It is an amazing little fan, I'm glad you like it, Nobody Famous! ;) He's got a DC motor in him. Thanks for the comment.
What was the total price?
If there isn't any air in it, how does it insulate at all?
There is still air in it.
It's packed tightly enough that there's not enough air circulation to support a fire, but that doesn't mean there's no air at all.
What external blinds are they?
Hey, have you guys ever read The 3 Little Pigs? Spoiler alert....it didn't go well with the pig who built with straw...
How many years would this last. Does the straw not decay?
Anorkor Lartey The walls are dry, they will not decay.
Wow
Instead of a mini-split air-conditioning unit, have you heard of Radiant Cooling? It's the exact same system as in your car engine compartment - preventing the engine from over heating.
Water cooling is even used in some high tech computers and I dare say that server rooms (aka Server Farms) will soon begin converting to this century old technology soon because it's stable and costs a fraction of what air-conditioning systems cost.
Here's a good example: czcams.com/video/CVginpnALL8/video.html
Durst is video is more focused on building performance and what little energy is required to heat and cool the environment. Thanks for the comment, though.
👍✔💚💚💚
Did he say it only cost 25,000 to build the at house?
Cahlen washington i believe he meant, 25K additional cash, ontop of an ordinary strawbale, home. I’d imagine excluding that glazing. But you may be better off contacting him directly about this.
He said the bugget was 450 000 but it got closer to 500 000.
Sorry, but how to find the name of the song? or where did you found it?
Адильхан Сагинтаев Not quite sure, mate.
Mb, contact someone edited video? pls)
Адильхан Сагинтаев alot of editing companies or people pay for licensed music that cant be used by others. You may not be able to use or listen to the song, if you find it, without paying a large fee.
Hey men...come on...cows do not eat straw but HAY.
It's just a joke! If cows do eat straws we wouldn't be building with it.
the windows a 16:50 the question was what u value answer slightly above 1 then text on screen says windows r1 ....is that right could you clarify please...are triple glaz ed gas filled windows only r1 ...
That is correct. Walls way outperform windows every day of the week, triple glazed on its own may get you R-.82. We may have slightly exaggerated the R-value. Sorry. efficiencymatrix.com/building-material-r-values/ The U value would be more like U-1.2
Hey guys Cows do not eat Straw... They eat hay !
Actually they do eat straw. You are incorrect.
‘And the wife was very keen to have a bath.’
‘Yeah yeah.’ (We all know chicks like baths mate).
Cows DON'T eat straw. Cows eat hay. Straw is used for bedding. Straw is not edible. Straw is what is left over from various grains such as oat, wheat, barley, rice, etc.
It was intended as a joke, and what you say may be true, but cows actually do eat straw. Straw is a roughage feed that can be used effectively in a beef cow wintering program. It’s not their main diet but they DO eat it.
www.saskatchewan.ca/business/agriculture-natural-resources-and-industry/agribusiness-farmers-and-ranchers/livestock/cattle-poultry-and-other-livestock/cattle/straw-roughage-source#:~:text=Straw%20is%20a%20roughage%20feed,the%20animal%27s%20requirements%20are%20met.
Google it. DYOR.🙃
Cellulose is the building material of straw. Flammable building material is very common in the USA. This looks dangerous.
What is very weird from a pasif house construction standpoint , this design is absolutely not compact...
johan Clareboudt That is very true. It’s definitely not your usual box. Thanks for watching, and hopefully sharing.
I have visited the property and i beg to differ.