Pros and Cons of Hempcrete
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- Опубликовано: 29 сен 2024
- In this video, instructor Natalie Bogwalker discusses the pros and cons of using hempcrete when building a tiny house. This is a video from our Tiny House Academy online course, where we teach about naturally built wall systems and other types of ecological construction. Click here to learn more about the online Tiny House Academy:
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Hempcrete is the future but it will take time to get more growers on board and processing plants in every state!
I would add fire resistant and pest resistant to the pros. Otherwise nice overview. Thanks!
So are cinderblocks and concrete
@@royrogers3133ight but the general 2x4 construction isn’t. I’m with you )) regular cinderblock is way cheaper but it has no R value compared to this material 😃
In my state I can grow hemp, need state license every year and half an acre can produce enough of the hemp to build a house. Run it in wood chipper and you are good to go
@@royrogers3133 r value per inch of 2.5 or more for hemp and r value of around 2 for 12 inches of cinder block.
2 birds one stone with hemp 🤷
I have used hemp Crete for the past 25 years in Canada. You did not share one of the most interesting facts of hempcrete. No need for complete forms we use one straight one 90 ⁰ form that's all. Hempcrete forms can be removed and the wall won't fall or slump. We used Hemp herds and fibres we sourced in Quebec. Our own cement plant, a small one we purchased, and did the foundations for a 5 story huge home and equally huge garage with 13 Grow Rooms all made from hempcrete. It
Also cures much faster than traditional concrete. No need to use gloves. And it's extremely structural adaptable
Make videos about this please. Maybe even show the house
Hi @M. Pearce, Im from Nova Scotia and have been researching hempcrete for about 5 years. Im getting to the point where I would like to plan a build and would love to get some input if youre available sometime.
Are you saying that you made the footings amd foundation from hempcrete.
Hello , how can I contact you ? Instagram or Facebook id?
Actually hemp has been in use since the Roman times. It is more of a forgotten material than a new material. The chemical companies were and are not to control it so they had it banned back in the 1930's in the U.s.a . Heck even Henery Fird used Hemp in one of his car models .
Send info to Governors and mayors. We need more processing centers as much as we need farmers. Hemp ftw!
cons start at 1:54 PROS AND CONS LISTED 2:44
Bamboo works as well as hemp but takes longer to grow and costs more to process.
I think hemp is more durable.
Hemp is sold extremely expensive 😂compared to bamboo
How long does hempcrete last?
there's one thing I don't understand but maybe it's a very silly question...anyway....is hempcrete waterproof?
it is!
The way I understand it’s going to digest water, they don’t recommend it below the ground and require to have a finish layer on exterior wall
No, it isn't.
Nice video! What do you mean by "it is not structural?" I am working on a project in the Algarve in Portugal where I am planning on growing hemp to make hempcrete and then build a house from the hempcrete. Hemp crops in Portugal are legal with permits.
Maybe you mean you're building with hempcrete blocks?
Sounds amazing and good luck with your project!
Thanks for posting this video. I like your summation of the pro and cons. How wonderful it would be to remove some of the barriers to using hemp on an industrial scale. I work in California on communities destroyed by recent fires. Rebuilding using construction materials like hempcrete can prevent so many homeowners from losing their homes in future fires. I intend to see this be one more available and mainstream. Great video!
Im in CA too and call the Governor about Hemp weekly
Im in CA too and call the Governor about Hemp weekly
Is it earthquake resistant for Cali? Have no idea 😂 have a friend there who’s interested
What do you know about hemp's ability to absorb moister from warm wet air exhausting to cold dry air in wintertime ?
The lime in hempcrete is good at mediating excess moisture in a room, this is not a quality of hemp. The lime can help the hempcrete not have mold issues. We don't know if this totally addresses your question and we weren't sure quite what you were asking but this is what we know about moisture as it relates to hemp. We encourage you to do further research before building with this material.
@@WildAbundance Hemp is hygroscopic.
I may build soon, but hemp is off my list due to cost. There's a long way to go on that. The labor is similar to some other good materials, seems to me, so I don't see us moving to it for that, either. Not yet.
How about the load bearing hempblock?
From what their site says, the blocks are structural and only slightly more expensive
This would work son well with 3D printed homes by icon
intriguing idea.
I've been wondering about this possibility.
I'me sure that it can be load bearing, cause load bearing strawbales houses are existing since last century at least ! (And cheaper, and more available...)
They are not load bearing, unfortunately they crumble under weight.
I think it's because the shorter pieces are only held together by the lime mixture, where strawbale has long pieces all interwoven.
That would be my guess anyway.
Yeah, it might be more expensive, but not as expensive as treatment for being poisoned by mold in a stick built house.
That's only relevant if you can afford the increased up front costs🤷
And you only have to worry about mold in poorly built and maintained stick built homes.
Your comment comes across as saying either pay the higher up front costs, or get sick 😄
Having said that, I'd love to build a hempcrete house. Just gotta be able to afford it one day.
The hempcrete blocks now r structural
Great to hear that, this video was made several years ago, perhaps we'll have to update it sometime.
what does R-value mean?
This is a term referring to the degree of insulation you get from a given layer or material. Building codes often require a certain minimum for R-value in the walls of a structure that people will inhabit, and that's usually based on the climate of the area in which you're building. Foam insulation would have a higher R-value the thicker it is, for example.
is it waterproof?
it is!
that's a pretty low R value. Standard is r-19 batt insulation in a wood frame wall cavity.
Bountiful abundance ample mammalian