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@vinylspinner87 11 күн бұрын
Hi. What would you suggest to insulate the internal walls of a 1890s house with solid brick wall at the front of house and chalk at the rear all with lime mortar. Need to figure out how to insulate to keep building control happy. Any ideas would be amazing..could I use hempcrete blocks for downstairs up to maybe waist height and then button off the walls, insulate with wool and then board over with hemspan board? Then lime plaster it all..would this be OK? Does it matter if I use non breathable materials on the inside party walls as they're always going to be dry as never exposed..any I thinking in some sort of correct way or am I completely wrong. Thanks .
@thelowcarbonproject 11 күн бұрын
@vinylspinner87 Hi yes you could use hemp bricks but that could eat into your floor space. Have you seen our video interview about spraying onto old buildings? I worked on some 400 year old buildings that had about 120mm sprayed directly onto the walls. I would recommend having a chat with Graham Durrant about other options too, he's very knowledgeable and the UK expert in hempcrete, he does consultations for a very reasonable price too. You can get in touch with him through hemplimespray.co.uk mention we sent you.
@carolynsilvers9999 12 күн бұрын
Amazing, like frosting a cake… can color pigment be added to the mixture?
@thelowcarbonproject 12 күн бұрын
Thanks. Yes it can be added but it also needs a paint for extra weather protection anyway.
@maryannferrara9897 12 күн бұрын
How much hemp in pounds for that house?
@thelowcarbonproject 12 күн бұрын
About 5 ton, so around 11000 pounds
@normdempsey9904 8 күн бұрын
@@thelowcarbonproject , what's the weight difference compared to a traditional build?
@BLUEY-il3dx 13 күн бұрын
Where do you get this from. UK?
@thelowcarbonproject 13 күн бұрын
Yeah, the hemp comesfrom east Yorkshire Hemp and the lime was through hemplimespray.co.uk/
@BLUEY-il3dx 13 күн бұрын
Where has this been constructed? Please reply
@thelowcarbonproject 13 күн бұрын
It's in Kent, South East England
@maryannferrara9897 14 күн бұрын
To expensive needs to be less in order to beat concrete that simple!
@thelowcarbonproject 13 күн бұрын
@maryannferrara9897 That doesn't make sense. Thankyou for the view
@maryannferrara9897 13 күн бұрын
@ lol you know what I meant.
@thelowcarbonproject 13 күн бұрын
@maryannferrara9897 if your saying it's too expensive to build with, you're wrong. Matt wouldn't have done it if it was more than conventional build. The materials are way cheaper than brick and builds a better, healthier house.
@maryannferrara9897 12 күн бұрын
@ ok I was looking online and I compared the price hemp mix was 70$ a bag of concrete was 8$. Help me understand I really like the hemp. What information am i missing? There’s clearly something I’m missing
@thelowcarbonproject 12 күн бұрын
@maryannferrara9897 Ah ok, we don't know anything about pricing in the US. Here it was about £2500 for the hemp and £5000 for the lime. Including the timber it was probably about £10000 for materials of the walls. Another saving is that it can be done by anyone, so removing a lot of labour costs associated with brick building (concrete isn't too common for houses in UK)
@ronaldmicheljr3083 15 күн бұрын
This is super inspiring and I will share it. I love this and will build a home from hempcrete as well! I think the lights on the outside of the house are ingenious, as you can't change the lime. It looks great. My dream home is made from hempcrete and has geothermal and solar energy to power the heating/cooling and electricity. Heated driveway and heated floors as well. Sunroom/greenroom would be nice to have as well, although that obviously wouldn't be hempcrete. It's really cool what you can do do with homes these days to be more sustainable. The idea of a sustainable, smart home made by and powered by the earth will be a dream come true some day for me. Thank you guys for doing this and inspiring me and others!
@thelowcarbonproject 13 күн бұрын
Hi thanks for the kind words. There's still plenty that will be happening with the house this year, Matt has moved in but no where near finished so lots of videos to come. We will be recording an update next week. I also like the ides of a greenhouse at front of a building like earthships have, we are hoping to do some more builds in spain this year and will be experimenting with those types of things. Cheers for following along 🍻
@williammcrann282 17 күн бұрын
We need this construction in Ajo AZ
@thelowcarbonproject 16 күн бұрын
We need it everywhere 😅 There is quite a lot happening with hempcrete in the US. Also found these guys in Arizona www.arizonahempcrete.com
@Sekacnap1997 26 күн бұрын
You cant substitute this for load bearing concrete right?
@thelowcarbonproject 26 күн бұрын
@@Sekacnap1997 No, the structure is a timber frame that is encased in the hempcrete
@normdempsey9904 8 күн бұрын
@@thelowcarbonproject , any idea how the wind rating of this structure compares to concrete, brick, or other traditional build? Asking from Florida where we see 150mph sustained winds all too frequently.
@MakerBoyOldBoy Ай бұрын
Reared using wood in construction, cabinet making, furniture and other decorative items, there is no longer any rational reason to use wood in home construction. Except for visual aesthetics. To do so is absolute stupidity.
@thelowcarbonproject 29 күн бұрын
@MakerBoyOldBoy So... what do you recommend is used instead of a timber frame? Bearing in mind that bricks, blocks and cement are not a carbon negative material and are susceptible to mold and damp
@MakerBoyOldBoy 29 күн бұрын
@thelowcarbonproject Read this article and many other innovations. The world moves on. With or without you.
@thelowcarbonproject 29 күн бұрын
@@MakerBoyOldBoy no article linked.
@MakerBoyOldBoy 29 күн бұрын
@@thelowcarbonproject My correction. "Watch and listen" to this video. Also many alternative eco friendly building materials and techniques. Simple to research.
@MarquesdaFonte Ай бұрын
what is the cost?
@thelowcarbonproject Ай бұрын
It's still not finished so final cost hasn't been calculated but the materials for the walls was about £10k to £15k and that includes the timber for the frame
@Alans-qm5ch Ай бұрын
I would have done the same for top before roof to have good insulation
@thelowcarbonproject Ай бұрын
@Alans-qm5ch yeah hemp for the roof would be the ideal scenario but it really comes down to cost. The structure of the roof would probably cost more and then there is also the need of a lot more hemp. It is a cold loft / attic but is well insulated with 350mm of loft insulation and is working well even before it's completely finished. He was getting a COP of 5.75 from heat pump, in October and November which is really good
@TheOceancalling Ай бұрын
I will start a similar project in Fuerteventura (Canary Islands), wooden frame and hump concrete, awesome to have the chance to see your building coming true, thank you guys!!!
@thelowcarbonproject Ай бұрын
That sounds like a nice project, will you be documenting the build? Thanks for following along, it's been a while since we released a video but should have one soon and things will be moving a lot faster in the new year 🍻
@Bakes365 Ай бұрын
Do you cover South Yorkshire doing hempcrete spraying?
@thelowcarbonproject Ай бұрын
Hi, we didn't run this job, we were working with a company called Adyta builds, and their contact details are in the description to this video. Graham Durrant was also involved in this project and is highly recommended if you want some consultancy. His contact details are in description as well. Cheers 🍻
@Bakes365 Ай бұрын
@thelowcarbonproject Thank you 👍
@ishagtuka1609 Ай бұрын
جميل جدا
@thelowcarbonproject Ай бұрын
Thank you very much 😊
@dalehodgins1456 Ай бұрын
I'm building in a similar fashion but using rice husk and coconut coir that is free at my place in the Philippines. It makes sense for me since my place is on limestone and we have a persistent tall grass that can be used to fire a Lime Kiln. I expect to spend $500 on labor producing all of my cement. We will first erect a bamboo framework that will become completely encased. The bamboo will be treated with quicklime that also contains ash from the fuel. The caustic nature of quicklime and ash should prevent insect damage.
@thelowcarbonproject Ай бұрын
@dalehodgins1456 that sounds like an awesome project. Will you make videos or do you have somewhere people can follow along?
@Ron-p2j8p 6 күн бұрын
Interesting
@huma-rl8ph Ай бұрын
super
@thelowcarbonproject Ай бұрын
😊 Thank you
@parrysan 2 ай бұрын
Beautiful!! Great video - thank you!
@thelowcarbonproject 2 ай бұрын
Glad you enjoyed it and thank you for watching 🍻
@chiponvali5887 2 ай бұрын
A lot of work, but the satisfaction is just as great! A big like from me!
@thelowcarbonproject 2 ай бұрын
😊 Thanks for the big like. Still a lot more to come for the garden too.
@Jonnysonone 3 ай бұрын
What’s the cost like and does it satisfy building control?
@thelowcarbonproject 3 ай бұрын
Cost varies depending on if you do it yourself with the help of friends or pay a company to do it. To do the house we have just built (on our channel) it would have cost about £30k but 2 of us did it for less than half that. In the full interview Graham states that he is really competing with material costs and still gets 80% of the jobs he quotes for so it can't be too much, if any, more expensive than the "conventional" materials. There are building control companies that are OK with it, and they really only care about the inuslative properties, hempcrete is more than good enough.
@karolysolyom3631 3 ай бұрын
How long is the drying period in your construction, bro?
@thelowcarbonproject 3 ай бұрын
Hi, recommendEd is 8 weeks for walls this thick but this build had much longer than that to dry. We used permanent shuttering, which also slows down the drying process, but they aren't actually needed
@tanzenmusic2322 3 ай бұрын
Come Ibiza and let’s build a Hemp GeoDome 😅💯💪🏽
@thelowcarbonproject 3 ай бұрын
Haha that sounds nice. We've actually recently been having conversations around hemp domes. Have you made one yet?
@TT-tn1dp 4 ай бұрын
Is hemp grown as a crop in UK, or imported?
@thelowcarbonproject 4 ай бұрын
Yes it is but not as much as it could / should be. When hand placing, we use east Yorkshire henp but with spraying, they use hemp from france. That stuff is actually horse bedding and can be purchased from lots of places in the UK.
@rdrnd 4 ай бұрын
Can we do hempcrete on a steel frame?
@thelowcarbonproject 4 ай бұрын
You could but it would have to be painted and would cost a lot more than a timber frame. We recently did a historical building that was strapped together with painted steel but that was just reinforcement on the old stone and bricks
@AfremGebremichael 4 ай бұрын
Hemp, the king and th queen of crop.
@thelowcarbonproject 4 ай бұрын
Sure is 🍻
@ricardoterrasantos6618 4 ай бұрын
Very useful. Thank you.
@thelowcarbonproject 4 ай бұрын
You're welcome, glad you like it 🍻
@Betty-zl8ve 4 ай бұрын
Wondering why you don't use hemp fibers, are more durable
@thelowcarbonproject 4 ай бұрын
The fibres were just what the manufacturer supplied and recommended for use with this particular product, but agree, it would have been nice if we could have used hemp instead.
@ธนพรสิลาวรรณ์-ฌ9ฦ 4 ай бұрын
I need to contact you seriously. My partner will building house asap.
@thelowcarbonproject 4 ай бұрын
I've just answered one of your other comments but I would be happy to have a chat with you online if you want. I don't claim to know everything but have learned a lot over the last couple of years and have access to Graham who knows pretty much everything there is to know. Alternatively you can do a consultation with him. I can be contacted by email on [email protected]
@ธนพรสิลาวรรณ์-ฌ9ฦ 4 ай бұрын
Where is your company??
@ธนพรสิลาวรรณ์-ฌ9ฦ 4 ай бұрын
Do you have any builders in Australia
@thelowcarbonproject 4 ай бұрын
Hi, we are all based in the UK (although I do actually have an Aussie passport). I've had a look in the Hempcrete book and found these... hempcrete.com.au/ hempco.net.au/ I will also ask Graham who he knows in Australia, I know he mentioned someone in the interview. What part of Australia are you in?
@thelowcarbonproject 4 ай бұрын
Hi, I just found this company as well, based in WA hemphomesaustralia.net.au/
@JoeSmith-s1o 4 ай бұрын
Loved the question on spray vs cast for a new build, looking to build a new barn with hempcrete and had no idea you could build direct with spray
@thelowcarbonproject 4 ай бұрын
Nice. Have you seen our video on the barn we did recently?
@dwilliamsnetosnet 4 ай бұрын
Excelllent Vid. Been waiting for a current one - most are so old. Graham appears knowledgeable like crazy.
@thelowcarbonproject 4 ай бұрын
Thanks and yeah he certainly knows his stuff! We are hoping to do some more interviews with him in the future where we will go even deeper on some of the more technical stuff.
@alhamduabdulreshid4353 4 ай бұрын
it is great, can we use this material as HCB and BRICK material for high rise buildings
@thelowcarbonproject 4 ай бұрын
It's not structural, so high rise would be difficult. There is one recently completed, which was 12 floors and reinforced with concrete blocks in Cape Town. It would be good to use as insulation on pretty much any building as well.
@ruben8114 4 ай бұрын
Hi there, loving the series so far! Great job. Quick Q: why did you choose to paint? Purely esthetical or also protective? I saw some other hemp builders throwing in some coloured powder into the plaster. Also seemed to work! But your house looks great!
@thelowcarbonproject 4 ай бұрын
Hi, thanks for following along. The episodes on Matts have slowed a little but will be picking them up again soon, he's been busy completing the bedroom and doing a bit of gardening and snagging. Paint was used for both look and added protection for the lime render. He may try a bit of adding powder into the mix for inside, but as the house is in quite an exposed location it was best to go with a little more protection from the elements on the outside. He's also used some lime wash inside which looks really good, so you'll be seeing a bit of that in future episodes 🍻
@ruben8114 4 ай бұрын
@@thelowcarbonproject Got it! Makes sense. Thanks for the response. Looking forward to the following episodes. All the best.
@brendanwood5213 4 ай бұрын
Hi we here in South Africa would love to learn, how much would it cost to bring a unit to us here in jhb.
@thelowcarbonproject 4 ай бұрын
Hi, that's not really viable to ship a unit all the way there, it would put a machine out of action for too long. It would probably be cheaper for you to travel to UK and learn here on the job. Best bet, is to get in touch with Graham Durrant and have a chat with him if you have some questions you'd like to ask him. [email protected]
@andrewcheshire244 5 ай бұрын
My mate invented a render spraying machine that could be operated with one man. I'm sure it could be modified slightly and used for this. When I build my home I'm going to use spray hemp. I'd like to build a dome but they're hard to get council approval.
@thelowcarbonproject 5 ай бұрын
These machines were actually modified render machines originally. They're made in france specifically for hempcrete now. It is possible (and has been done) to operate this with one man but would be slow going. Hemp domes are complicated because of waterproofing issues, the lime render isn't good enough at protecting it, on the non vertical sides and could damage the hempcrete in places without it being obvious. They haven't been tested long enough to prove they work yet.
@haroldbrown1674 5 ай бұрын
About how expensive is the Hempcrete sprayer with all the other parts?
@thelowcarbonproject 5 ай бұрын
Hi, this system came from France and is about 37k Euros. It's one of the best available at the moment, and there are cheaper versions but they operate a bit differently.
@keystonecannaflage 5 ай бұрын
Nice
@thelowcarbonproject 5 ай бұрын
😊 Thanks
@urbanfpv3852 5 ай бұрын
Love it! When we build our extension we will be using hemp / stud walls for sure! Want to put in a rocket stove mass heater too :)
@thelowcarbonproject 5 ай бұрын
Nice. Check out our other videos if you've not seen them yet. We go into hand placing in more detail on Episode 6 of "The hemp house" playlist. Are you going to do it yourself?
@LeisaStroud-df4yj 5 ай бұрын
For future reference 😉, hose down all that cardboard before you cover with compost/top soil ! 🪵🍄🌱🌱🌱
@thelowcarbonproject 5 ай бұрын
Thanks, yeah we know he forgot just before finally covering it but what you can't tell in the video is that the cardboard was actually there for a month exposed to the good old British weather. He gave it a good soaking when it was covered too. This was really just a rush job so he could get some stuff planted in time for the season. The next lot of beds will be deeper, layered up better and left covered over the winter. As it is though, the plants he has are doing really well 😊 Thanks for watching 🍻
@antosmer 5 ай бұрын
Remarkable! I've been wondering for a while whether you can use a clay or terracruda panel, but I'm afraid your solution is better depending on the required mechanical properties and factors such as water absorption that may alter the drying values of the hempcrete
@thelowcarbonproject 5 ай бұрын
Yes, using these boards does add drying time, but for us it wasn't really an issue... they still aren't plastered yet, so the walls have had over a year of good drying
@thelowcarbonproject 5 ай бұрын
Yes, using these boards does add drying time, but for us it wasn't really an issue... they still aren't plastered yet, so the walls have had over a year of good drying
@antosmer 5 ай бұрын
@@thelowcarbonproject True, but in the case of clay panels the opposite could happen, which is not good given how much water the clay absorbs and could cause it to stratify badly. Your solution is also better from a structural point of view. And afterwards you could plaster it in clay. Congratulations great work
@thelowcarbonproject 5 ай бұрын
@antosmer 😊 Thanks very much. And yes drying too fast can be a bad thing, an added bonus of the permanent shuttering is less waste and less tamping, which also means less hempcrete used and can then be utilised elsewhere. We did an internal feature wall with the extra hemp and lime we had left over
@LoveFoundation33 4 ай бұрын
@@antosmer I'm looking into a similar solution with the woodwool boards for internal shuttering of a hempcrete wall. Sure they must add drying time, but no sure how much, this material is very hygroscopic adsorb a lot of water, up to 90% of its mass. Plus they are very vapor open meaning they will permit drying along the vapor gradient as long as atmospheric conditions are favourable. Would be interesting to do a test to compare clay to wood in this use. My architect added an extra dimension to the debate by saying these would add extra resistance to compression and tension loads making the timber frame better able to handle high winds and earthquakes.
@zensational. 6 ай бұрын
Awesome job! One day, I'll build my own on some land.
@thelowcarbonproject 5 ай бұрын
Thanks and good luck with your project 🍻
@NebojsaDemir 6 ай бұрын
Excellent tea will luzzzzz forever and ever 🎉🎉🎉🎉
@jamiesmallwood9489 6 ай бұрын
Hello mate, what plaster board did you use on the ceiling and why didn’t you use the same wool boards as the walls? Thank you! Jamie
@thelowcarbonproject 6 ай бұрын
Hi Jamie, just regular 12mm plasterboard. Bit of a cost saving. ceiling doesn't really need to be breathable and Matt would have had to use lime on woodwool board and he didn't fancy that over his head. More chance of getting burns on skin. All the rooms have external walls, so still plenty breathable
@joshualee4651 6 ай бұрын
Looking good man, even with the wonky bird bath 😂nice to see you enjoying the process!
@thelowcarbonproject 6 ай бұрын
Ha yeah, at least the water is level and the birds don't seem to mind. Just adding a bit more character to the place
@elenikalifatidi1992 6 ай бұрын
Amazing job!!!!
@thelowcarbonproject 6 ай бұрын
🤩 Cheers 🍻
@bear6275 6 ай бұрын
Great job! G'day from Western Australia 🇦🇺 😀🙃
@thelowcarbonproject 6 ай бұрын
G'day to you too. Nice to hear from our international viewers 😁 🍻
@OneShot_WOLF 6 ай бұрын
Cheering for you guys, from USA
@thelowcarbonproject 6 ай бұрын
Cheers for watching 🍻😎
@OneShot_WOLF 6 ай бұрын
Where can I get my hands on that shuttering system? I'm building a large shed soon and want to try this
@thelowcarbonproject 6 ай бұрын
Hi we hired the boards so not sure what brand they were but they are designed for concrete formwork. These that I found online look very similar (may be the same) www.geoplastglobal.com/en/products/formworks/geopanel/
@OneShot_WOLF 6 ай бұрын
@@thelowcarbonproject Hey man thanks so much. Can I ask what kind of binder you all used? We are building a 1600sq/ft structure in the USA and I've been taking notes on your videos
@thelowcarbonproject 6 ай бұрын
@@OneShot_WOLF Hi, we used a premixed bag which we purchased from a company here in the UK. This is the one we used but they have all different types depending on how its being applied. This is designed for hand casting. Good luck with your project. www.celticsustainables.co.uk/lime-green-hempcrete-binder-for-hand-casting/?gad_source=1&gclid=CjwKCAjw4_K0BhBsEiwAfVVZ_zBD6pML9BZb5uRhYkk82eR2Qo4Wr4Jz2EYU8L8g5JnrRQBokTn4RRoCCXUQAvD_BwE