it's a great building material, but as for a concrete replacement is phooey. This would be good for walls and drywall replacement but I doubt it can withstand the weight pressure that concrete can. A better replacement for concrete has been know for centuries, it's called cob.
With seed hemp oil, you have the best oil for health and biodiesel. What about asphalt? I bet the roads will be in a better shape if hemp was mixed asphalt. In agriculture hemp may be utilized as as a weeder; it grows one year only and can get rid of competition of weeds. With hemp seeds and trees seeds, you can reverse the deserts into luxuriant forests, so getting hydroelectric power. Only those who will do less money wanted its illegalization. Pot is illegal because it is hemp.
Ill do anything and everything i can to build myself a HEMP+HOME! If there is a way for me to do so Please do not hesitate to E-mail me i Live in Southern California. very homeowner should Grow Hemp Just as God And Jesus did and are still doing!
What about moisture control? They were setting up that one house in rain... If the is a house full of mold it may cause a great deal of carbon dioxide too... Well, maybe they mentioned it the sound was a bit bad...
Moisture control is important. However, in building science, moisture control does not necessarily mean moisture blockage, and it also does not refer strictly to bulk water. Moisture gets into any wall assembly. In a well-designed assembly, it can only get in as vapour (think humidity), not bulk water (eg. rain). Vapour barriers in conventional walls are used to control where vapour is stopped in an assembly. Most wall assemblies using natural materials are created to be highly vapour permeable, meaning that vapour can transfer all the way through the wall, if necessary. The benefit of this high vapour permeability is that the wall is able to dry out rather than trapping the vapour and creating condensation. I believe it is most beneficial in areas with larger seasonal swings because in the winter the vapour drive is from the interior towards the exterior, whereas in the summer that direction is reversed. Conventional vapour barriers are installed based on one season or the other, but aren't able to dynamically adjust to both. Ultimately, all building methods and materials have their pros and cons. Whichever you use, it is just important to understand the properties and dynamics pertinent to each method to ensure you use the materials correctly and build a durable, healthy structure.
It was just to clarify that hempcrete is not "perfectly moisture free" as you stated. It is actually highly vapour permeable (approximately 24.2 gm/m2/mm hg). That's important to know since placing a vapour impermeable layer on your hempcrete could cause mold problems, just as trapping moisture against a concrete foundation wall can even though the concrete itself doesn't rot. It's just a matter of understanding the nature of the materials you're using and using them accordingly. I personally quite like hempcrete. And by the way, I am aware of what scientific research looks like. I was merely referencing an article that was written for a layman audience since I was responding to a comment that was worded as if intended for a layman audience.
The hemp plant is apparently resistant to mold, although it is highly absorbent of water. Mold can grow on the surface of hempcrete, just like other materials, when the conditions are right... as the food source can be dirt or dust, but due to the lime component and natural fungal resistance of the hemp, mold will not feed on the hempcrete itself.
No offence, but who do you think will eventually end up making it a cash crop? I'll tell you it won't be DIY pot smokers. I do agree though, we need to legalize it, all of it. Stop worrying about stupid stuff like this, we have more important issues to attend to.
![BRASIL vs. URUGUAY [1-1] | RESUMEN | ELIMINATORIAS SUDAMERICANAS | FECHA 12](http://i.ytimg.com/vi/-hWBAuxF1eY/mqdefault.jpg)
in Spain and France they have been doing this for more than 80 years... it might be new but for Britain, nevertheless it is a wonderful solution
This is amazing! I love it, what a great way to help lower carbon emissions!! Lets live on the Earth a while longer.
We're waking up!!! The future is looking SO FREAKEN SWEET! SHIBBY!
I would like to see this take off in the United States
"I see hemp fields forever, growing wild and free"
... and it may last a very long time. A bridge from the epoch of the Merovingians is still functioning.
it's a great building material, but as for a concrete replacement is phooey. This would be good for walls and drywall replacement but I doubt it can withstand the weight pressure that concrete can. A better replacement for concrete has been know for centuries, it's called cob.
You can't pour a cob home though. It is not a replacement for concrete at all.
If hemp was legal we wouldn't need the government. Just the military.
With seed hemp oil, you have the best oil for health and biodiesel. What about asphalt? I bet the roads will be in a better shape if hemp was mixed asphalt. In agriculture hemp may be utilized as as a weeder; it grows one year only and can get rid of competition of weeds. With hemp seeds and trees seeds, you can reverse the deserts into luxuriant forests, so getting hydroelectric power. Only those who will do less money wanted its illegalization. Pot is illegal because it is hemp.
I agree but its been used by humans for way longer than that.
Of course.
Hempcrete actually let's your house breathe and hold in moisture and then relase it
are you sure your not thinking about Jute?
weed can,and will save to world,and has made this the world that it is
what about hempBRICKS
I think Hempcrete isn't as strong as concrete...
Going through some of the disadvantages..its 1/20 the strength of Concrete...
So?.. it's not used to do the same job as concrete.. to do the job that it's being used for here it's very good.
It's not used for strength though.
Poor guy Al Jazeera showing off nice 720P
Ill do anything and everything i can to build myself a HEMP+HOME! If there is a way for me to do so Please do not hesitate to E-mail me i Live in Southern California. very homeowner should Grow Hemp Just as God And Jesus did and are still doing!
Fuck. Yea
it was a joke hence the winkie at the end >.> sit back down!
Mark Emory University
Gah, This video is very jumpy.
well..she is a reporter...not a well-read youtube-hempwatcher who knows all about the stuff...like us. :)
rON pAUL 2012!!
new material?! lol
WTF?? Are you really that angry?
I wonder if the owner gets a little high living in his hempcrete house :)
What about moisture control? They were setting up that one house in rain... If the is a house full of mold it may cause a great deal of carbon dioxide too... Well, maybe they mentioned it the sound was a bit bad...
Moisture control is important. However, in building science, moisture control does not necessarily mean moisture blockage, and it also does not refer strictly to bulk water. Moisture gets into any wall assembly. In a well-designed assembly, it can only get in as vapour (think humidity), not bulk water (eg. rain). Vapour barriers in conventional walls are used to control where vapour is stopped in an assembly.
Most wall assemblies using natural materials are created to be highly vapour permeable, meaning that vapour can transfer all the way through the wall, if necessary. The benefit of this high vapour permeability is that the wall is able to dry out rather than trapping the vapour and creating condensation. I believe it is most beneficial in areas with larger seasonal swings because in the winter the vapour drive is from the interior towards the exterior, whereas in the summer that direction is reversed. Conventional vapour barriers are installed based on one season or the other, but aren't able to dynamically adjust to both.
Ultimately, all building methods and materials have their pros and cons. Whichever you use, it is just important to understand the properties and dynamics pertinent to each method to ensure you use the materials correctly and build a durable, healthy structure.
hempcrete is naturally perfectly moisture free as it regulates humidity accordingly, it cannot rot, cannot mold
Not exactly... www.avoidingmold.com/single-post/2016/06/03/Hempcrete-for-mold-safe-building
It was just to clarify that hempcrete is not "perfectly moisture free" as you stated. It is actually highly vapour permeable (approximately 24.2 gm/m2/mm hg). That's important to know since placing a vapour impermeable layer on your hempcrete could cause mold problems, just as trapping moisture against a concrete foundation wall can even though the concrete itself doesn't rot. It's just a matter of understanding the nature of the materials you're using and using them accordingly. I personally quite like hempcrete.
And by the way, I am aware of what scientific research looks like. I was merely referencing an article that was written for a layman audience since I was responding to a comment that was worded as if intended for a layman audience.
The hemp plant is apparently resistant to mold, although it is highly absorbent of water. Mold can grow on the surface of hempcrete, just like other materials, when the conditions are right... as the food source can be dirt or dust, but due to the lime component and natural fungal resistance of the hemp, mold will not feed on the hempcrete itself.
NEW MATERIAL!??!?! good god wtf is wrong with you people
its weed, smoke it all.
No offence, but who do you think will eventually end up making it a cash crop? I'll tell you it won't be DIY pot smokers. I do agree though, we need to legalize it, all of it. Stop worrying about stupid stuff like this, we have more important issues to attend to.