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green mobile buildings, weight of Hempcrete? Other mobile solutions?

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I've always wanted to build a timberframe house with hempcrete for insulation because I live in on the west coast with moisture, rodent, and mould problems. Mostly the rodent proof is appealing to me, and the thermal mass aspect of the hempcrete as insulation.

Recently I am under pressure to find a housing solution and if I can't find an affordable rental that is rodent proof and mould free I am looking at building a mobile home on my mom's property. My mom is a bit difficult to live with and my partner is only willing to live there if we have something we can move one day when we can afford to buy our own land.

So I'm hoping to find out if hempcrete is too heavy to use as insulation in the walls and floor of a mobile building. I'm looking at hiring someone local to build something on site as quickly as possible. I think 2 by 6 framing should work fine for the exterior portions, and 2 by 4 for interior partition walls.

Then again I just realized it's very likely hempcrete insulation would crack if the house did have to be hoisted onto a flatbed truck and moved one day, so perhaps I'd best go with traditional insulation.

Does anyone have any other ideas about building mobile homes to be more environmentally friendly? Is that affordable to even do?
It seems like traditional building materials are more affordable.

I'd love to hear any other ideas about mobile home solutions besides a travel trailer or a factory built park home. Is there any such thing as an environmentally friendly mobile home?

I live in Canada, on a small island. I found the perfect mobile home solution from a guy in Oregon but importing it and installing it on the property is too complicated so it looks like I'll have to either build on site or order a kit of some kind that can be easily assembled, but I have the feeling it would be a lot cheaper to build it locally than to order a kit.
So any tips about home built mobile homes would be very appreciated.
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Why mobile if upon an island?

I am just curious, otherwise I would suggest look toward the enduring vernacular architectural styles that are indigenous or of the island itself.


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Location: Asheville NC
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Not sure where you read that hempcrete is a good insulator but from what I understand, its R value is about the same as wood. Not exactly great. From what I know of other projects in our area is that it tends to leak a lot of air as well.

Jay has a good question and advice. Traditional and conventional building techniques can perform great when done right.
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