This is an introductory video on how to insulate your house with hempcrete. Sergiy Kovalenkov (CEO of Hempire), one of the most …
45 Comments
Your videos are fantastic! Videos on formwork and different approaches to joins and hemping across various days would be great for a future video. I haven't seen anyone cover that in detail in video or text.
Do you have any advice / direction on vertical joins – hempcrete to hempcrete?
I'm an owner-builder here and we'd like to do a full room wall in one day for aesthetics., i.e. focus on going up not around as quickly as possible. We won't render inside.
We are thinking of putting in vertical formwork and doing the hemping in 'bays'/sections, with joints hidden behind internal walls (eg. section 1 and section 2 in image). Externally, joints would be covered with render. Is there any issue with this? I imagine we could get some shrinkage, and have the 2 hemp walls (eg. section 1 and section 2 in blue text) move away from each other since there's no interlocking.
Clear and useful run-down of how to apply in-situ hempcrete! I do find the music (restless vibes, and varying in volume) a little intrusive over the (more interesting) narrative.
Just a few questions first how do you do the rough framing for windows and doorways in preparation for adding the hemp: lime mix? Second, am I correct that you can pour a perimeter concrete foundation wall, add a spacer membrane, and go from there? Third, which is easier a loose mix as seen here vs hemp bricks? and finally is this method easier than rammed earth or CEB and how does the cost compare?
If you have a traditionally stickframed 2×6 wall, without access from above the wall (top plates at the top of the wall) how would you insulate with hempcrete?
What is the stud spacing on this house and how do you determine where to apply the diagonal bracing? Also, is that a double stud wall with offset studs or are you using Larson trusses?
We are praying that the Russians haven't destroyed your beautiful homes and pressing our government to support Ukraine to defend itself against the horrors of Putin's illegal invasion of your sovereign nation.
Excellent video with really valuable information! Do you have more videos? I'm gonna explore and see. By the way, your English is outstanding. I always admire people who learn more than one language, but you are truly fluent and very articulate. Since I only know English I'm very grateful to people like you from other countries who make their knowledge available in English. Thank you.
Thank you Sergiy, for explaining. Perhaps a narration in concern of the sound would be great, the noise was now and then too much (for me, I'm hearing impaired)
Everywhere I hear you only MUST use the shive (inner core of the hemp) for hempcrete, but the handful of hemp you picked up contained also fibres with leaves…… Can you please tell me if it is mandatory to ONLY USE the shiv(e) ?? What kind of binder do you use ? "Normal" cement (?) Do you use also a part lime in the mixture ??
Would love to hear the "exact" used materials.
I'm planning on making our own hempcrete house in about 1 or 2 years, that is why
So glad i found your videos. Do you have any photos of the house completed, i want to see that exposed hemp ceiling. We are thinking to build a hemp house in Australia – what are your thoughts on hempspray? Industry is very young here and not many companies the tamp method.
Exactly what type of lime did use to mix with the hemp hurds, natural hydraulic lime, what was the binder, specifically? NHL 5, NHL 3.5. No one ever talks about the ingredients of the mix! If I want to build a house with hempcrete walls what do I need to achieve that?
Really interested in hemp building so helpful in that sense but i am concerned about the type of masks being used and how they are being worn. If there is a code, it defo wouldn't meet it.
Love this project and your clear descriptions. One question I have, is the lime render…if you coate the building in lime, would the wood structure – studs and beams – not shrink and expand with the humidity, thus cracking the lime render on top of it? Over time, I wonder if this would be a problem. Many thanks for sharing this and your expertise…
I would love to see this in Georgia, where I live. I am currently building a barndominium home and I would have loved to do this kind of build but I imagine it would have been difficult to get building permits for this type of build. Finding contractors to build with this material would have been another issue. For my next build I would like to try Hemp.
Muchly appreciated overview and looks like a fantastically healthy house. Key point, it's all about finding your local supply of materials. But what ingredient is in the binder that lets the form come off right away?
man, you are fantastic. what a great great project!!! looking for a similar project using stray, clay, lime, wood for myself and this is really an inspiration. perfectly fitting to a country like Ukraine with huge reservoirs of natural agricultural materials growing every year!!! as you build a timber frame house and hempcrete is proven to be fireproof all regulations (static, insulation, fire resistance) in Europe should not be a problem. Just so much better than all those timber frame building projects using lots of foams, plastic foils, shitty materials on Youtube. thanks a lot and good luck. P.S.: just a short remark: "light straw" seems to be a bit outdated for a wall system because of lower insulation value compared to straw bale walls. do you have any number for the insulation value of hempcrete?
nice project! not sure i get how you are doing the roof…. so the hemp is open at the celling and sandwich directly under the osb/membrane of the roof? or do you have a ventilation systeme to avoid condensation insite the hempcrete?
Hello, thanks for sharing your experience. Timber will eventually deform itself in time. Would that be a problem? As far as breathability would be feasible to have a roof made of hempcrete on top of a wooden surface (25 mm thick)? Or would you suggest some kind of vapor barrier between wooden surface and hempcrete? Thanks in advance and wish you a good day from Italy.
If you have a lot of spare time, or if you live in a country where labour is cheap, this process can work. But there's also the matter of building regulations, insurance etc. (edit: I initially described OSB as a toxic fire hazard, which it is, but OSB is used and re-used to shape the hempcrete, not as building material) If you can get pre-formed hempcrete blocks certified they would be an excellent building material for bungalows. Pre-formed, light weight hemp blocks (hemp, not hempcrete) are also very useful to insulate existing homes from the inside, when insulating from the outside is not an option (e.g. historic buildings).
Just curious, could wheat straw couldn't be used when hemp isn't available? Anyone know? I mean I know it's not as hip as having a ganja house but wheat straw is EXTREMELY abundant as it is a byproduct of producing wheat.
I think that you will find much more acceptance here in the United States if the product could be sprayed like foam insulation is sprayed. The cost must come down as well. How do you compact the material when you reach the ceiling?
Your videos are fantastic! Videos on formwork and different approaches to joins and hemping across various days would be great for a future video. I haven't seen anyone cover that in detail in video or text.
Do you have any advice / direction on vertical joins – hempcrete to hempcrete?
I'm an owner-builder here and we'd like to do a full room wall in one day for aesthetics., i.e. focus on going up not around as quickly as possible. We won't render inside.
We are thinking of putting in vertical formwork and doing the hemping in 'bays'/sections, with joints hidden behind internal walls (eg. section 1 and section 2 in image). Externally, joints would be covered with render. Is there any issue with this? I imagine we could get some shrinkage, and have the 2 hemp walls (eg. section 1 and section 2 in blue text) move away from each other since there's no interlocking.
This is the most informative and detailed video on hempcrete I've seen so far. Many thanks and blessings! 😀🙏
Clear and useful run-down of how to apply in-situ hempcrete! I do find the music (restless vibes, and varying in volume) a little intrusive over the (more interesting) narrative.
Way too expensive way to build in the US.
Can you tell what is the type of this mixer you are using? Or how is it called if the type is not available? Thank you!
Amazing. Any processors in the UK. I like to grow hemp. but no market?
Just a few questions first how do you do the rough framing for windows and doorways in preparation for adding the hemp: lime mix? Second, am I correct that you can pour a perimeter concrete foundation wall, add a spacer membrane, and go from there? Third, which is easier a loose mix as seen here vs hemp bricks? and finally is this method easier than rammed earth or CEB and how does the cost compare?
If you have a traditionally stickframed 2×6 wall, without access from above the wall (top plates at the top of the wall) how would you insulate with hempcrete?
hiring?
What is the stud spacing on this house and how do you determine where to apply the diagonal bracing? Also, is that a double stud wall with offset studs or are you using Larson trusses?
We are praying that the Russians haven't destroyed your beautiful homes and pressing our government to support Ukraine to defend itself against the horrors of Putin's illegal invasion of your sovereign nation.
Excellent video with really valuable information! Do you have more videos? I'm gonna explore and see. By the way, your English is outstanding. I always admire people who learn more than one language, but you are truly fluent and very articulate. Since I only know English I'm very grateful to people like you from other countries who make their knowledge available in English. Thank you.
A very clear explanation of how and why to build with hempcrete with so many details. Thank you so much.
The background music is too loud
Thank you Sergiy, for explaining.
Perhaps a narration in concern of the sound would be great, the noise was now and then too much (for me, I'm hearing impaired)
Everywhere I hear you only MUST use the shive (inner core of the hemp) for hempcrete, but the handful of hemp you picked up contained also fibres with leaves……
Can you please tell me if it is mandatory to ONLY USE the shiv(e) ??
What kind of binder do you use ?
"Normal" cement (?)
Do you use also a part lime in the mixture ??
Would love to hear the "exact" used materials.
I'm planning on making our own hempcrete house in about 1 or 2 years, that is why
How do I reach out to you?
Can hempcrete be pumped?
So glad i found your videos. Do you have any photos of the house completed, i want to see that exposed hemp ceiling. We are thinking to build a hemp house in Australia – what are your thoughts on hempspray? Industry is very young here and not many companies the tamp method.
А де знаходиться цей будинок?, цікаво було-б поспілкуватись з власником а при можливості зустрітись?
Love it. Excellent.
Доброго дня вам.
Чим щекатурите, з зовні та з середини ? Чимось "дихаючим" ?
Товщиу стін можна робити по суті будь яку ?
Thank you! We’re so excited to build this way.
Exactly what type of lime did use to mix with the hemp hurds, natural hydraulic lime, what was the binder, specifically? NHL 5, NHL 3.5. No one ever talks about the ingredients of the mix! If I want to build a house with hempcrete walls what do I need to achieve that?
Really interested in hemp building so helpful in that sense but i am concerned about the type of masks being used and how they are being worn. If there is a code, it defo wouldn't meet it.
Would it be easier to make Hempcrete Blocks and Build with the Blocks? Using a Machine to Compact them, like a Hydraulic Ram?
Love this project and your clear descriptions. One question I have, is the lime render…if you coate the building in lime, would the wood structure – studs and beams – not shrink and expand with the humidity, thus cracking the lime render on top of it? Over time, I wonder if this would be a problem. Many thanks for sharing this and your expertise…
But what's the binder? Looks like regular cement to me. That wouldn't really be that much more sustainable..
I would love to see this in Georgia, where I live. I am currently building a barndominium home and I would have loved to do this kind of build but I imagine it would have been difficult to get building permits for this type of build. Finding contractors to build with this material would have been another issue. For my next build I would like to try Hemp.
Навіщо, ця гучна музика? Нічого не чутно.
Why OSB over top of the hemplime on the roof under the hydrophobic membrane? Why is it needed? Thanks!
Muchly appreciated overview and looks like a fantastically healthy house. Key point, it's all about finding your local supply of materials. But what ingredient is in the binder that lets the form come off right away?
Thats the russian woody harrelson
Can I get some consultation? I live in Mexico don't know if you offer any services here.
man, you are fantastic. what a great great project!!! looking for a similar project using stray, clay, lime, wood for myself and this is really an inspiration. perfectly fitting to a country like Ukraine with huge reservoirs of natural agricultural materials growing every year!!! as you build a timber frame house and hempcrete is proven to be fireproof all regulations (static, insulation, fire resistance) in Europe should not be a problem. Just so much better than all those timber frame building projects using lots of foams, plastic foils, shitty materials on Youtube. thanks a lot and good luck. P.S.: just a short remark: "light straw" seems to be a bit outdated for a wall system because of lower insulation value compared to straw bale walls. do you have any number for the insulation value of hempcrete?
EXCELENT VÍDEO BRO, SHARING IS A DOOR FOR MANKIND, THANK YOU, BEST REGARDS & WISHES FROM PERÚ.
wonderfull
nice project! not sure i get how you are doing the roof…. so the hemp is open at the celling and sandwich directly under the osb/membrane of the roof? or do you have a ventilation systeme to avoid condensation insite the hempcrete?
Great work, sir! Many thanks for your clarity and purpose.
Whats the best method for processing the hemp from the stalk?
Hello, thanks for sharing your experience. Timber will eventually deform itself in time. Would that be a problem? As far as breathability would be feasible to have a roof made of hempcrete on top of a wooden surface (25 mm thick)? Or would you suggest some kind of vapor barrier between wooden surface and hempcrete? Thanks in advance and wish you a good day from Italy.
Wow, even the ceiling you made of hemp, we made the walls of this pavilion of this great material, check the video: https://youtu.be/tDkf1SuRj3k?si=ldPzbZhjqg1VyY9Q
If you have a lot of spare time, or if you live in a country where labour is cheap, this process can work.
But there's also the matter of building regulations, insurance etc.
(edit: I initially described OSB as a toxic fire hazard, which it is, but OSB is used and re-used to shape the hempcrete, not as building material)
If you can get pre-formed hempcrete blocks certified they would be an excellent building material for bungalows. Pre-formed, light weight hemp blocks (hemp, not hempcrete) are also very useful to insulate existing homes from the inside, when insulating from the outside is not an option (e.g. historic buildings).
Looks like you are working with elephant 💩
Just curious, could wheat straw couldn't be used when hemp isn't available? Anyone know? I mean I know it's not as hip as having a ganja house but wheat straw is EXTREMELY abundant as it is a byproduct of producing wheat.
I think that you will find much more acceptance here in the United States if the product could be sprayed like foam insulation is sprayed. The cost must come down as well. How do you compact the material when you reach the ceiling?
great video, thank you! but what do you use between your timber frame and the concrete slab?