It expected to get cheaper/more available worldwide as the hemp market grows. Why I love hemp insulation: Sound Dampening, R Value (energy efficiency) and Indoor air quality. Amazing video mate, really enjoyed the way you explained all your points.
We fitted a hemp wadding in our loft in Germany. We didn't want any nasty chem or fibres. Very happy with the smell, and glad it keeps the 37°C summer heat out. Well worth the extra cost. And, yes, you're sequestering carbon. Definitely a win-win. 😊
Thanks a lot for your video. I’m living in the north of Russia, average winter temperatures is above -25-27 C°. I’ve insulated my house with hemp and linen(flax) insulation (there is no big difference between). Everything is cool. The most significant advantage of hemp or linen insulation - no need to install plastic vapour barrier, you should only install paper vapour (or steam) limiter. microclimate became much bettter. Good luck!
Ivan, how about the winters? I live in Minnesota, so I was wondering what is your experience with hempwool in the winter? Thank you very much! Ekaterina
Hemp insulation is very difficult to produce because no hemp plant grows the same. Hard to create an efficient production when dealing with material variables. There is a production plant in Idaho but that is the only one in the United States at this time that I am aware of. Hats off to those folks taking such a big risk.
I believe the fibre bast from the stems is crushed, scutched and treated with borax to make a fire resistant batt. The hurd is woody pith used to make hempcrete and a lot of other products. Nice to see it being discussed.
ive always wondered how well hemp and containers would work thats something i want to do if i get the chance to build my "forever home" my hunch if it was used a home could save you a shit ton in the long term seeing is how hemp is a good regulator and just how containers are built so nothing outside gets inside so id assume come winter time thats a big money saver
I believe industrial hemp cultivation improves the soil and will contribute significantly in carbon dioxide sequestration whiles improving the economy from multiple lines of new environmentally sustainable products
The only thing that I noticed missing was the fact that, even thought the upfront cost may be higher for now, the long-term savings in energy for heating and cooling will far outweigh that cost. I've even heard some buildings didn't require A/C because it regulated temperature within so well. I'm sure that highly depends on location and climate - but, that's truly impressive. One additional point - if you build with hempcrete in addition to using hemp insulation - you are multiplying the effectiveness. I'm looking forward to the advancements and adoption of this technology.
Nice. have you guys looked at the "fungus/mushroom" insulation that's been developed? I'd be interested in seeing your analysis of that. Best that I recall, there was a video that showed how the stuff is grown in a form. I seem to recall a warehouse or something with racks of forms and the fungus culture being grown in them. In the end, when it's reached the right growth and packed the form, it's decanted. There was a final step of some kind (don't remember exactly) where the stuff was either cooked to a certain temperature or hit with UV to kill it and render it inert. What you were left with was a dense block of insulation that slid into place in framing sort of like you did with the hemp bats. I don't remember any details, like R value or fire resistance, but I'm assuming that was mentioned because I do not have a recollection of a big negative. Thanks for the video.
Thank you, Jason! Hemp wool insulation doesn't get much better. Check out our social media channels and website for the launch of the Rise store coming soon..
Hopefully by the time you would need to replace it this product would be much more widely available by then. Everything seems to point to using this for my camper. Thank you!
What about that leggo style hempcrete that uses "vegetable oil-based polyester resins or polyols"? Are the polyol supports (which look like plastic) inside the hempcrete eco friendly or less hostile?
You lost me when you mentioned polyester. How to ruin a good thing. It’s a step in right direction but we need to completely eliminate these materials from our environment.
Agreed. Quite possible the poly is post-consumer though, and there’s plenty of that! Patagonia has done it’s share of re-purposing something that ain’t going away. This is a huge step in the right direction.
Hi there, I have two questions. 1. Does it degrade over time, deriving from a plant and all? 2. You mentioned smelling like grass. Does it smell up the property? No one likes the smell of grass sitting on a lawnmower for months on end... Thanks.
I've handled hemp insulation. To me, it has a much more fresh cut hay smell. It is very light and has a woodsy type smell. Definitely would not smell up a property imo.
Their products still catches on fire in 6.7 seconds. I know of a contractor that just had to pull it all out after an install because of prospective code violations. He did a tests after pulling it out and it caught fire and difficult to put out. Hempitecture has changed policies to include they are not responsible for code violations. lets be clear they are gaslighting you if they say they have the university of idaho working on it when we know sodium carbonate or sodium bicar works and are currently being used in hemp/flax products from germany. This is a known known.
I would like to see wood and hempcrete used in earthquake zones like Turkiye. Hemp using lime as a binder is thought to last at least one hundred years and is a breathable material making it an excellent insulator. Hemp should be subsidized as it removes a lot more carbon from our atmosphere than trees. Bamboo is the best for removing carbon but it is the same as wood so it will rot and be attacked by insects.
For human health, planet health, performance, can you get much better than hemp wool in the cavities and wood fiber insulation boards on the outside? Yet, neither are widely available in north america! What's wrong with us?
It seems that you can grow hemp on marginal land to improve it for crop raising eventually. Like beans it fixes nitrogen in the soil and the roots break up hard clays. So for anyone with a tract of poor soil this could bring it into full cultivation after a few years. That it fixes so much CO2 makes it a real environmental choice. I am guessing like hempcrete it can be used to insulate old buildings that have single walls which breathe moisture, stone and brick, without rotting?
Considering how tight and smooth Hempwool Insulation can be... If it's done right is there any real need to 'finish' the interior wall with Drywall or similar? I kind of like the rustic look you showed off here
Seems like it would be hard to clean, but then again you could just flip it around and the back should still be clean, or have extra pieces. Might be a good idea if it's saves 15k of drywall costs
I've been hearing a lot about this lately, and it's gradually becoming more widely available as time goes on. I have heard from some European contractos that it will rot under certain circumstances, but I don't know accurate this is, since no one in Canada or the U.S. mentions the problem. They often build homes with cement or stone, though, and that may have something to do with the concern. (I wonder if the smell of newly-mown grass counts as "off-gassing"? Pretty pleasant, if is does!
this is what I want to know, how does it rot? I am going to get a small home built here in the future, and I was thinking about using this but if it's gonna rot in the walls, I might pick something more permanent like spray foam.
Hi, I have a question. You mention that hemp batts do not absorb (much) water and that it is not that flammable, but I believe one of the properties of these kind of materials (organic ones) is that they do absorb water and can react strongly when a flame is near. Is this because of the binders you use of am I missing something?
Thank you for the info. I am in the beginning stages of a van build 2500 Ram Pro Master. Are there and health issues using hemp in a smaller living space?
Thank you for this. The only thing I never hear people talk about as a con specifically,?is the fact that the Hemp wool always seems to contain some percentage of plastic in it. 😕 This is a huge drawback to me, because it takes away from the compostability of the product, the sustainability of it in the long run, cradle to cradle like. We don’t need more micro plastics in the world! I really want to use hemp wool in my build, but that part is very disappointing to me. I wish there was something they would find to use as an alternative. And also yes, the fire proof shocker! 🔥😳🔥 Wow. That’s disappointing. That it isn’t as fire proof as they claim. I wonder if sprinkling it all over in both sides with boric acid / borax mixture would could help that?
Please, can someone help? Do i need to install a vapor barrier when using hemp insulation??? I have looked online, but cant seem to get a straight answer. Its for a brick house in northern europe, FYI. Any advice is welcome! Thank you
I live in NYC moving to UPSTATE NY Bought A fixer upper need insulation Where can I purchase this in NY or any northeast area? Thanks GREAT information!
I have in many many years, liked wood fibre insulation as the best available insulation material. But I must say that hemp wool insulation is very very interesting as well, as it has many of not all of the benefits of wood fibre insulation, but the turn around time (from seed to finished product), is much faster than it is for trees. So in princip you can grow a hempwool field several times a year - if the climate etc. is suitable for it. Very interesting and very nice video. :-)
Can you comment on installing this between joists or rafters? Do you think the install would look as nice as it does in the stud bays you show in your video or would it sag or fall out?
Chicken wire can be used to hold it up. They even make a plastic form of chicken wire. The chicken wire is held in place by staples. I just know this bcuz i've seen it, while doing various repairs on homes. Plumbing repairs, where sometimes you have to go into attics or under homes.
I've been in insulation since 1966. It's organic, retains moisture. Because of that while not promoting the growth of mold and fungus, moisture can leach into the sheetrock and form mold and mildew.. Might be good in open attics where it can breath and stay dry, but not exterior wall where it is exposed to condensation. So the claims are only good for the material only.
Their products still catches on fire in 6.7 seconds. I know of a contractor that just had to pull it all out after an install because of prospective code violations. He did a tests after pulling it out and it caught fire and difficult to put out. Hempitecture has changed policies to include they are not responsible for code violations. lets be clear they are gaslighting you if they say they have the university of idaho working on it when we know sodium carbonate or sodium bicar works and are currently being used in hemp/flax products from germany. This is a known known
Not sure this is there yet. For something that's closer, the raw materials so readily available, it's more expensive. There's polyester, and harder to work with. MORE expensive than mineral wool. It's a step in the right direction, but until the dollar is less than mineral wool, this may have accidentally become an ad for mineral wool.
You said that hemp insulation is pest resistant. Does this mean rodents? Also, I need to find a contractor who will install this in the Washington DC area. Suggestions?
@@orangecookie3132 Their products still catches on fire in 6.7 seconds. I know of a contractor that just had to pull it all out after an install because of prospective code violations. He did a tests after pulling it out and it caught fire and difficult to put out. Hempitecture has changed policies to include they are not responsible for code violations. lets be clear they are gaslighting you if they say they have the university of idaho working on it when we know sodium carbonate or sodium bicar works and are currently being used in hemp/flax products from germany. This is a known known
So it contains textile polyester fiber as a binder, but you can compost it? You mean the hemp could've been composted, if it wasn't for the plastic binder. Now this material is better than foam insulation, and safer than glass, but far from natural.
I’m all for any and all innovations and sustainable materials to insulate a home or business but good Lord you drug out the cost that long. Not exactly a product that is really sustainable in the sense of cost.
It expected to get cheaper/more available worldwide as the hemp market grows. Why I love hemp insulation: Sound Dampening, R Value (energy efficiency) and Indoor air quality. Amazing video mate, really enjoyed the way you explained all your points.
Thanks guys! There's really nothing not to love about hemp insulation.
We fitted a hemp wadding in our loft in Germany. We didn't want any nasty chem or fibres. Very happy with the smell, and glad it keeps the 37°C summer heat out. Well worth the extra cost. And, yes, you're sequestering carbon. Definitely a win-win. 😊
Jeremy, what about winters? Thank you.
It looks like they are now spraying it with flame retardants.
Thanks a lot for your video. I’m living in the north of Russia, average winter temperatures is above -25-27 C°. I’ve insulated my house with hemp and linen(flax) insulation (there is no big difference between). Everything is cool. The most significant advantage of hemp or linen insulation - no need to install plastic vapour barrier, you should only install paper vapour (or steam) limiter. microclimate became much bettter. Good luck!
Ivan, how about the winters? I live in Minnesota, so I was wondering what is your experience with hempwool in the winter? Thank you very much!
Ekaterina
@@vorotnikova Great expirience, as for me. Much better than usual rickwool.
@@Nachiel Oh, terrific, thank you for letting me know... will install it too!
Grow More Hemp
Hemp insulation is very difficult to produce because no hemp plant grows the same. Hard to create an efficient production when dealing with material variables.
There is a production plant in Idaho but that is the only one in the United States at this time that I am aware of.
Hats off to those folks taking such a big risk.
Very useful . So informative . We needed videos like these for anyone interested in healthy ecological homes. Thank you so much.
I love that it’s so easy to plant and grow hopefully in the warm climate regions
HempWool is actually made of the OUTER bark of the hemp stalk, or the bast fiber.
I believe the fibre bast from the stems is crushed, scutched and treated with borax to make a fire resistant batt. The hurd is woody pith used to make hempcrete and a lot of other products. Nice to see it being discussed.
I am using this in my shipping container build . So far it has been wonderful!
It's great for the the narrow shape of a shipping container build! Thanks for sharing
ive always wondered how well hemp and containers would work thats something i want to do if i get the chance to build my "forever home" my hunch if it was used a home could save you a shit ton in the long term seeing is how hemp is a good regulator and just how containers are built so nothing outside gets inside so id assume come winter time thats a big money saver
I plan on doing the same thing on my shipping container, how has it held up? Do you still recommend it?
@@atomp153building with it and share with us pls
I am going to order as soon as the wiring is done in my cabin.
I believe industrial hemp cultivation improves the soil and will contribute significantly in carbon dioxide sequestration whiles improving the economy from multiple lines of new environmentally sustainable products
The only thing that I noticed missing was the fact that, even thought the upfront cost may be higher for now, the long-term savings in energy for heating and cooling will far outweigh that cost. I've even heard some buildings didn't require A/C because it regulated temperature within so well. I'm sure that highly depends on location and climate - but, that's truly impressive. One additional point - if you build with hempcrete in addition to using hemp insulation - you are multiplying the effectiveness. I'm looking forward to the advancements and adoption of this technology.
Hello good afternoon. What do u think if I used hempcrete to pour the roof of a house?
@@julianrombley9966 - my knowledge doesn’t stretch that far. I’m still fairly new to all of this. 🙂🙏
thanks from Thailand hocostly to set up manufacturing
Nice. have you guys looked at the "fungus/mushroom" insulation that's been developed? I'd be interested in seeing your analysis of that. Best that I recall, there was a video that showed how the stuff is grown in a form. I seem to recall a warehouse or something with racks of forms and the fungus culture being grown in them.
In the end, when it's reached the right growth and packed the form, it's decanted. There was a final step of some kind (don't remember exactly) where the stuff was either cooked to a certain temperature or hit with UV to kill it and render it inert.
What you were left with was a dense block of insulation that slid into place in framing sort of like you did with the hemp bats.
I don't remember any details, like R value or fire resistance, but I'm assuming that was mentioned because I do not have a recollection of a big negative.
Thanks for the video.
You're the video version of Chris Magwood's "Making Better Buildings" (and "Sustainable Home Design"), updated, detailed, entertaining. Thank you.
Thank you, Jason! Hemp wool insulation doesn't get much better. Check out our social media channels and website for the launch of the Rise store coming soon..
Free the weed. Free the people. No more prison for pot. Hemp can save the world.
Hopefully by the time you would need to replace it this product would be much more widely available by then. Everything seems to point to using this for my camper. Thank you!
What about that leggo style hempcrete that uses "vegetable oil-based polyester resins or polyols"?
Are the polyol supports (which look like plastic) inside the hempcrete eco friendly or less hostile?
You lost me when you mentioned polyester. How to ruin a good thing. It’s a step in right direction but we need to completely eliminate these materials from our environment.
Me too though I’m glad hempcrete exists
Agreed. Quite possible the poly is post-consumer though, and there’s plenty of that! Patagonia has done it’s share of re-purposing something that ain’t going away. This is a huge step in the right direction.
Bioplastics might be a solution...
@mace- not to worry, this particular type of polyester is vegan .it is derived from organ beetles that eat carbon .
the hempcrete blocks seem superior, time to ditch the thermal bridging of stick building.
Very good and clear explanation video.
Thank you very much.
Cool! Great!
More and more R&D!
Standardization
Unification
Modularization
What hemp stocks to buy?
Where do I buy this product?? I wish to build a Pot house ...
Hi there,
I have two questions.
1. Does it degrade over time, deriving from a plant and all?
2. You mentioned smelling like grass. Does it smell up the property? No one likes the smell of grass sitting on a lawnmower for months on end...
Thanks.
I've handled hemp insulation. To me, it has a much more fresh cut hay smell. It is very light and has a woodsy type smell. Definitely would not smell up a property imo.
Their products still catches on fire in 6.7 seconds. I know of a contractor that just had to pull it all out after an install because of prospective code violations. He did a tests after pulling it out and it caught fire and difficult to put out. Hempitecture has changed policies to include they are not responsible for code violations. lets be clear they are gaslighting you if they say they have the university of idaho working on it when we know sodium carbonate or sodium bicar works and are currently being used in hemp/flax products from germany. This is a known known.
I would like to see wood and hempcrete used in earthquake zones like Turkiye. Hemp using lime as a binder is thought to last at least one hundred years and is a breathable material making it an excellent insulator. Hemp should be subsidized as it removes a lot more carbon from our atmosphere than trees. Bamboo is the best for removing carbon but it is the same as wood so it will rot and be attacked by insects.
Would it work as a matras? For ur bed?
For human health, planet health, performance, can you get much better than hemp wool in the cavities and wood fiber insulation boards on the outside? Yet, neither are widely available in north america! What's wrong with us?
It's definitely the future, but it still has plastic in it, which is disappointing.
Is it appropriate for insulation of the attic? Also, does it need a vapor barrier?
It seems that you can grow hemp on marginal land to improve it for crop raising eventually. Like beans it fixes nitrogen in the soil and the roots break up hard clays. So for anyone with a tract of poor soil this could bring it into full cultivation after a few years. That it fixes so much CO2 makes it a real environmental choice. I am guessing like hempcrete it can be used to insulate old buildings that have single walls which breathe moisture, stone and brick, without rotting?
Considering how tight and smooth Hempwool Insulation can be... If it's done right is there any real need to 'finish' the interior wall with Drywall or similar?
I kind of like the rustic look you showed off here
Seems like it would be hard to clean, but then again you could just flip it around and the back should still be clean, or have extra pieces. Might be a good idea if it's saves 15k of drywall costs
@@epg423 you assume I ever clean my walls lol.
There are grease stains from when my dad and I were working on my truck ten years ago
Yes you want drywalls only if you ok see electric wires and plumbing
Well, it would be a nice place to store all your dust. And you've got to like brown.
Wow! Love the video
I've been hearing a lot about this lately, and it's gradually becoming more widely available as time goes on. I have heard from some European contractos that it will rot under certain circumstances, but I don't know accurate this is, since no one in Canada or the U.S. mentions the problem. They often build homes with cement or stone, though, and that may have something to do with the concern. (I wonder if the smell of newly-mown grass counts as "off-gassing"? Pretty pleasant, if is does!
this is what I want to know, how does it rot? I am going to get a small home built here in the future, and I was thinking about using this but if it's gonna rot in the walls, I might pick something more permanent like spray foam.
It's been suppressed for too long.
The Documentary Film "Hemp-Hemp Hooray" is a film I highly recommend for its a gift for humanity!
Hi Can you use the hemp wool to insulate a livable steel shed
Hi, I have a question. You mention that hemp batts do not absorb (much) water and that it is not that flammable, but I believe one of the properties of these kind of materials (organic ones) is that they do absorb water and can react strongly when a flame is near. Is this because of the binders you use of am I missing something?
great info, But where do we get it?
Sounds great all around for the most part, EXCEPT for the plastic microfibers. Like dang aren't we making enough of that already
Thank you for the info. I am in the beginning stages of a van build 2500 Ram Pro Master. Are there and health issues using hemp in a smaller living space?
How could you omit discussing vapor barrier?
Thank you for this. The only thing I never hear people talk about as a con specifically,?is the fact that the Hemp wool always seems to contain some percentage of plastic in it. 😕 This is a huge drawback to me, because it takes away from the compostability of the product, the sustainability of it in the long run, cradle to cradle like. We don’t need more micro plastics in the world! I really want to use hemp wool in my build, but that part is very disappointing to me. I wish there was something they would find to use as an alternative.
And also yes, the fire proof shocker! 🔥😳🔥 Wow. That’s disappointing. That it isn’t as fire proof as they claim.
I wonder if sprinkling it all over in both sides with boric acid / borax mixture would could help that?
hempcretes are better. for roof usage its fine though
Hopefully, they will use hemp plastic as the filler which is organic & breaks down in 90 days.
@@michaelwalker5880would it not break down while being used as insulation?
Please, can someone help? Do i need to install a vapor barrier when using hemp insulation??? I have looked online, but cant seem to get a straight answer. Its for a brick house in northern europe, FYI. Any advice is welcome! Thank you
Im living in nothern russia (St. Petersburg). Our manufacters of hemp(flax) insulation demand vapour (steam) limiter from paper, not plastic barrier.
Since it’s legal now, companies will likely start growing more
I live in NYC moving to UPSTATE NY
Bought A fixer upper need insulation
Where can I purchase this in NY or any northeast area?
Thanks
GREAT information!
Selwyn - we don't know of any dealers in your area but you could try contacting the folks at Hempitecture with your questions.
im so happy for this, but i know my country will be late to the hemp club, as always (brazil)
Hi all, how does it perform in moist environments? does it loose its thermal performance? thanks
I have in many many years, liked wood fibre insulation as the best available insulation material. But I must say that hemp wool insulation is very very interesting as well, as it has many of not all of the benefits of wood fibre insulation, but the turn around time (from seed to finished product), is much faster than it is for trees. So in princip you can grow a hempwool field several times a year - if the climate etc. is suitable for it. Very interesting and very nice video. :-)
Wood fiber have limitations
@@seanmorris4095 Why do you say that? Wood fiber insulation is one of the absolute best insulation materials in the world - I think. :-)
@@Corewood_TJP it is said that the agent used to glue it together is toxic for your health
What about rot? Animals/pests? R value for competitive products?
Love your videos, so inspiring! Any chance you would make one on straw insulation?
hi, can I know what process to turn the wood bast fiber into that type of bundle fiber? is it through the Thermo bond process or what?
Insane! If it grow like a “weed”; then, it should be cheap. I’m tempted to grow hemp just for raw material.
And hemp field produce more oxygen than other trees or plants per area.
OK, CAN I SMOKE IT? 😂🎉😂
Would hemp wool attract mice?
I was really leaning towards hemp…until I found out they are now spraying it with flame retardants.
Can you comment on installing this between joists or rafters? Do you think the install would look as nice as it does in the stud bays you show in your video or would it sag or fall out?
Chicken wire can be used to hold it up. They even make a plastic form of chicken wire. The chicken wire is held in place by staples. I just know this bcuz i've seen it, while doing various repairs on homes. Plumbing repairs, where sometimes you have to go into attics or under homes.
I've been in insulation since 1966. It's organic, retains moisture. Because of that while not promoting the growth of mold and fungus, moisture can leach into the sheetrock and form mold and mildew.. Might be good in open attics where it can breath and stay dry, but not exterior wall where it is exposed to condensation. So the claims are only good for the material only.
Does anyone know where in Colorado I can buy this?
It’s available on the Rise store. We can even assist you with a custom order made just for you. shop.buildwithrise.com/search?q=hempwool
Sold out still. Can you please update me on your expected date of availability?
Their products still catches on fire in 6.7 seconds. I know of a contractor that just had to pull it all out after an install because of prospective code violations. He did a tests after pulling it out and it caught fire and difficult to put out. Hempitecture has changed policies to include they are not responsible for code violations. lets be clear they are gaslighting you if they say they have the university of idaho working on it when we know sodium carbonate or sodium bicar works and are currently being used in hemp/flax products from germany. This is a known known
Can this material be used in blown in systems like cellulose?
Do you know how to calculate R-Value using this material with different 2x material? (can you send me a reference for this)
Not sure this is there yet. For something that's closer, the raw materials so readily available, it's more expensive. There's polyester, and harder to work with. MORE expensive than mineral wool.
It's a step in the right direction, but until the dollar is less than mineral wool, this may have accidentally become an ad for mineral wool.
How does it behave against termites? Since hemp is an organic material, it might attract them...
It repels bugs and rodents, so i'v read.
You said that hemp insulation is pest resistant. Does this mean rodents? Also, I need to find a contractor who will install this in the Washington DC area. Suggestions?
Any contractor will do it if you pay them and it's up to code
@@orangecookie3132 Their products still catches on fire in 6.7 seconds. I know of a contractor that just had to pull it all out after an install because of prospective code violations. He did a tests after pulling it out and it caught fire and difficult to put out. Hempitecture has changed policies to include they are not responsible for code violations. lets be clear they are gaslighting you if they say they have the university of idaho working on it when we know sodium carbonate or sodium bicar works and are currently being used in hemp/flax products from germany. This is a known known
So it contains textile polyester fiber as a binder, but you can compost it? You mean the hemp could've been composted, if it wasn't for the plastic binder.
Now this material is better than foam insulation, and safer than glass, but far from natural.
Why pollute it with 8% polyester?
And no, composting this would pollute the land with microfibres.
⭐⭐⭐⭐⭐ ✌🙋♀️ 🇨🇱
“No synthetic binder”? 8% polyester a flammable, toxic petrochemical plastic and not an eco-friendly material. Hemp minus polyester is what we need.
Give me a break. Embodied CO2 is a tiny fraction of a building's life time production. Rockwool is superior.
The dust is still a risk to your kids and you as well.
Wear a mask pls. Esp. When cutting it.
Yes vapor barrier omitted
Is it hard for rodent to eat?
.
I’m all for any and all innovations and sustainable materials to insulate a home or business but good Lord you drug out the cost that long.
Not exactly a product that is really sustainable in the sense of cost.