132. Insulation 101: A net-zero builder's formula for insulating a super energy efficient home
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- Опубліковано 20 жов 2024
- Peter Amerongen is one of the fathers of net-zero homes. Here is his secret formula for insulating a super energy efficient home. www.greenenergy...
There's no need to use petroleum based insulation to get to net zero. Phase change materials (infinite R) combined with really sustainable products like cellulose can get you there cost effectively. Take a look at it.
Fair enough. They also have a video on straw bale insulation.
Dean Benton , Agree with you 100%
our basement is not insulated and in summer we just blow the cool air up stairs pretty well cooling entire house in missouri
Problem with blown-in insulation is gravity is always working on it and it settles over the long-term! What will be the R-Value of those walls in 75 years?!
Dense-packed cellulose doesn't settle like loose fill does. Thermal resistance is therefore retained over time.
I can't wait to finally build my net-zero passive house when I retire. It's been a dream of mine for years to build a high quality, solar powered, off grid home somewhere out in nature with all the best high efficiency technology.
It won't save the world for any grandkids. You won't live forever afterwards either, it cannot prevent you getting old, sick and dying.
@@MrSvenovitch Nothing like piggybacking your bizarre ideology onto a totally unrelated comment. Get a grip.
I wish there were more Net-Zero, Green Homebuilders down here in Southern California like there are up there in Edmonton and other parts of Canada that I see in these videos or on this channel??
So three people marked this video as thumb down. Probably Charles and David Koch, but who's the third person?
I'm interested in your thoughts on caulking all boards and panels where they meet? Essentially, before you nail them, you would run a bead of caulk between the studs, the top/bottom plates, as well between the framed wall and the plywood/OSB.
If it creates an airtight envelope then it's worthwhile
Knauff also has an air sealing product called Eco Seal. It is sprayed on and is more environmentally friendly.
I have a question. I am finding it hard to locate information on how to renovate an older home to the green side. For instance, my home was built in 1951. At this point, tearing out all the interior walls to add insulation and new sheetrock is not feasible. The exterior sheeting is 2x6 tongue and groove (common measurement 1 1/2 x 5 1/2), and still has the original wood "shingle" type siding. Here is my question, when I go to replace it I want to apply the Roxul Comfortboard before adding the new siding; is this a good choice or is there something better?
Hi tigerdocsdc,
My personal preference for adding insulation to the exterior is EIFS. The liquid applied air barrier significantly improves air tightness and the cost of EPS is about half of Roxul, which can be significant if you are looking to add R24-48. If you are going to be using siding, I might suggest a hybrid system using the liquid applied air barrier under the Roxul. I would most likely install a layer of OSB over the existing tongue and groove sheathing. Hope this helps
That intro made me feel like I was living in the 1990's again
How about tropical hot and humid ecosystems? Does this hyper isolation work too? (To keep air conditioning inside for longer? Or... no...
I wonder how could use this knowledge with a concrete dome home design to get an even greater insulation factor.
Can I build a shed with so much insulation, that you can sit in it on a desk in the winter?
What happened to the ceramic insulation they used on the exterior of the space shuttle. It had a crazy R value, and super flame retardant
Great, after watching this, my house seems as good as a potato when it comes to home insulation.
cut it up and fry it to make some french fries.
You can retrofit. I had 16" more inches of insulation blown in my attic and then did triple pane windows and doors.
Just adding some plastic sheeting on the windows helps a lot, blowing in insulation to the walls and to the attic also helps. Most of this can be completed with out any special skill.
Spray foam not only releases very high greenhouse gases during manufacturing and installation it is toxic. And it shrinks.
Love this channel!
I believe the statement at 2:40 is misleading. If you have windows and doors in your house, you can insulate the wall all you want but there will still be energy losses out the windows. It is more like an electrical circuit. More electricity flows through the path of least resistance and so does heat. If you use more insulation, you will spend more energy and produce more CO2 when making the insulation. There is a theoretical optimum amount of insulation you should put in a house and that will vary with the climate where you live. You have to look at the life cycle production of CO2 for the house. This includes the CO2 produced when making all the products that go into the house.
Don Turco I have never seen or heard of the double bubble insulation you keep talking about. I’d be interested in giving it a try but don’t know where to source it from. I’m in the middle of an entire house remodel and I took it completely down to studs and the only thing left from the original house will be the framing and I’m trying to use products that will drive the utility bill as low as possible and this may help if I can find somewhere to buy it at.
I’m in North Carolina if it matters. Thanks Don, I appreciate the info very much, take care
What's the Carbon footprint of the insulation production and installation?
I agree with your point, but in the end, if you can make energy efficient homes that are self sufficient, that far exceeds whatever the pollution caused to make the insulation was hands down.
There is a tradeoff in embodied energy vs. long-term operational energy savings. Polyiso, EPS, XPS all have a pretty high embodied energy. Blown-in-celluouse has low embodied energy but requires a thick cavity.
hi i have a question. I want build house and where I live there is long summer and weather go hot as 43° and house turn to hell inside . so what I should to do to save my house been so hot ? remember I want build new house I'll be thankful to get answer and help 🤗☺
Hi Zadan, let me know where you are going to build, I will help you.
I live in South Asia
Maybe consider earth-sheltered, green roof, or ever underground.
A well insulated and well ventilated roof will help. Perhaps something like a walk-out basement would work. Even when it's 30 degrees C in the summer every basement is nice and cool.
Great video !
Did you install Radon mitigation?
John Arizona, a radon mitigation system doubles as a sub-slab ventilation system creating negative pressure under the slab as it operates 24/7, 365 days a year. The result is a basement that is free from any musty/damp smells and lower relative humidity (RH) levels in the home. The lower RH reduces the potential for window condensation in cold weather, especially the first two winter seasons after construction. These systems also reduce the amount of energy needed to operate a dehumidifier in the summer. That equates to lower utility bills as the type of fans used to move air and moisture from under the slab (to the exterior of the structure) is far cheaper than mechanically removing moisture through a dehumidifier. Another distinct advantage is radon mitigation fans are much, much quieter to operate as compared to a typical residential dehumidifier.
@@kevinhogan4060
John Arizona
4 years ago
Did you install Radon mitigation?
how can you achieve 1 air exchange per ten hours? Amory Lovins claims his home is this tight.
isn't spray foam insulation very harmdul to your health if done improperly.
just the people who life there, the people who install it wear respirators, they are fine.
It dries within 48 hours and the off gassing is done. Depends on close cell vs. Open cell as well.
But WHY must spray foam insulation contain fire retardants? There's another product, called Air-Krete, that is so safe the installers don't need protective clothing. (Maybe it doesn't insulate as well as polyurethane spray foam.)
it is 2020, does anyone know any netzero home builders in Ottawa?
polystyrene and fireprotection?
Put the heatexchanger of a airconditionair not in the air but in a cooling liquid and it would exchange the heat to the outside much more efficiënt. Wouldn't it, or am I wrong?
Sure, if you are a fish... Otherwise you will need 2 air to water heat exchangers and a water to water heat exchanger.
awsome i just love this stuff
0.6ACH50 is different than 0.6ACH continuous...
No way will I ever put spray in foam insulation of any sort in any house that I will build.
Got to love it when they sell 'green' technologies for your home but the guy applying the foam is fully enclosed in chemical suites...
If you have to wear anti-radiation suites... it doesn't belong in a house.
Nick Germanic yep probably cancer causing
You should wear a respirator when installing just about any insolation as they tend to be fluffy unpleasant to breathe fibers. The reason for the bunny suit is because that foam is very sticky and once it gets on your cloths won't come off, so you wear the suit so you don't ruin your good clothes or get it on your skin/hair.
Using chemicals to get back to a natural way of living seems kinda (no comment)..... Its not just about energy, health is kinda a big deal. Living in a healthy space is more important than saving money. We are heading in the right direction though, slowly but surely. Let us look at how nature builds and we will have the million dollar answer.
Holds moisture, will mold.
Hyperbole doesn't help the discussion in the real world of budget constraints. "Mineral wool is just a little more..." is a gross exaggeration. It will run pretty close to double the cost of fiberglass. While I like the traits of mineral wool it can add greatly to the entry cost of a home which is important as well as the operating cost to most families with limited budgets. In a mild climate payback differentials on one versus the other can be quite different than harsh climates. The same applies to spray foam which also is just not available in many rural areas. Blown in insulation has in the past been subject to substantial settling leaving a situation far worse than batts. The newer versions have not really stood the test of time. This could be a huge toss of the dice as retrofitting wall insulation is costly and not very effective a few years down the road. On a cost return basis as well as future repairs and upgrades I am leaning toward exterior rigid foam or perhaps if it proves out the mineral wool boards now coming on the market. There would be a lot less fad of the day buildings and failures if architects and engineers had to live in what they recommend and had limited budgets. A good net zero home needs to be able to be built with easily obtainable materials available across the country for a good performance cost ratio. It also needs to be a systems design that can be assembled by the average small contractor or homeowner with limited expertise and exotic tooling. It also needs to last. Building thirty year life homes no matter how efficient is false economy and a waste of resources. This is a good topic that needs meaningful discussion with a minimum of distortion. Thanks. Doug
@@greenenergyfutures $333 per foot is far from cheap. I was thinking if ones utility bill in that size home will just never be comparable to the cost if it were $100 as it is here in the US.
spray foam isn't green it's very toxic. USA Wyndmoor PA
Hopefully rigid and spray foam suppliers solve the problem of CFCs in the blowing agents that outgas over a 100 years adding to the greenhouse gases.
7:27 what the hell is Edward Snowden doing in the mechanical room
Hiding with Epstein's body.
Why are you mixing cellulose with fibre glass, totally contradicts sustainability and spray foam insulation is not an ecological product, due to the energy requirement to produce and dispose of it and environmental impact.
when your insulation is so toxic that you need an astronaut suit to spray it in.
BS. Prove that it ISN'T toxic.
Part A and Part B are comprised of lung irritants skin sensitizers and possible carcinogens. This has been established by the EPA.
The industry claims that if mixed and applied properly it will be inert when dried. However that's a big IF. There is no standard to determine if it has been installed properly and the claim of it being inert has never been studied outside the makers of the product. Aside from the potential health risks which are extreme, it is known to promote vapor and mold problems where the foam meets the exterior sheathing.
Theres a lot of building materials that it's not a good idea to breathe in. I've made and used limewash a dozen times, but that stuff is NASTY to breathe in and can dry your skin out- and it's seriously just heated rocks mixed with water and you can use it as fertilizer. Or salt- don't breathe it, don't get it in your eyes, etc and it's fine.
@@siriosstar4789 So if its no mixed correctly, it doesn't set up correctly.
Doesn't matter how it's mixed it's still toxic. If you take two known skin and lung irritants and mix them together , you don't get a NON toxic result.
Toxic + toxic does NOT equal non toxic.
Plus vapor barriers are proven to cause rot and mold. This is in no way " Green" building. one of the main aspects of Green building is the elimination of petroleum based products, not surrounding the house in an envelope of the stuff. This company is bogus and is using the name " Green" to sell something that in no way resembles Green.
My bother used to do spray foam. It was good money, but after only 1 year he had to quit as his lungs were no longer putting up with it and he was coughing all the time although he was always wearing the space suit with a high quality respirator. In a air tight home, the off-gasing will be happening into the home for years and years to come.
7:39 .. until some 1/2 arse puts the gas pipe next to the flex vent? hehe haha FAIL
ICF to the roof.
0:05 dudes gonna have some neck problems down the road.
Does it pay for itself?? Right now NO. In the future maybe...
These "green houses" are using much more wood for framing to accommodate the insulation. Cutting down more trees isn't going to help climate change. Why not use engineered building materials? The spray foam is still very expensive, twice as much framing...this will cost twice as much to build. Wouldn't make more sense to do standard const. then add green energy production products?
I suppose from a contractors perspective it is profitable if building for a client. And true that if one kept such a house for their entire life this would pan out financially, but there are places that the cost of the home wouldn't be reflected in the appraisal value if it went up for sale.
Shell sponsoring sustainability, ha ha that is a joke . Even though thanks for the info, very useful.
Typical very easy to put in ways accustomed to America. Low labour a lot of waste materials which is not being reusable and really scrappy.
Silly man in video, insulation does not add any heat to your home let alone the 50% you suggest. It may drop your heating bills by more than half if it's really good insulation but that's the insulation stopping heat lose not providing heat.
Just a way for these folks to make more money. I would say a house built like this is 3x the time of a reg one.
All very nice, but the costs of installations are all absurd. Unfortunatelly the average person cares only about the energy bill rather than the environment. With the cost of building a house like that you probably build 2 average insulated ones, rent one and pay a higher bill and have money left for beer
What are the LCA's of all these products? These man made foams are terrible for the environment and those who work with them. So the trade off here is: lets make extremely harmful materials to the environment so we can save money on our electric bill and call that sustainability... If these are the kind of solutions we are finding we wont fix our global warming problem any time soon. Should have talked more about the cellulose based insulation available in the market. Those come from renewable materials, and easy to reuse/recycle in the future. Just some thoughts here @green energy futures
You should just an even MORE efficient home for less. Plus it will be proof against fires, tornadoes, hurricanes, termites, etc.
In English?
would be nice to learn about wall technologies rather than all the green propaganda ;)
Shell.... a fossil fuel company sponsoring a green energy company????? hmmm
They adapt fast. The King is dead so. .. long live the King