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Tiny house wooden framing in contact with steel trailer?

Boerenkar | Posted in Green Building Techniques on

Hi all, 

I recently posted my tiny house project on reddit after which a couple people said I should add a constant thermal break between the trailer and the wooden framing of the walls. I have never seen this done in the world of tiny houses on wheels, and quite frankly, I don’t see how this could be done as the house has to be bolted to the trailer somehow. 

But according to those people, the trailer would suck all the heat out of my house if I didn’t. They also said all tiny houses I’d seen had been “built wrong”.

The wood I used insulates 3-4 times worse than the insulation I used, so I don’t see the issue of bolting the vertical wooden studs directly to the frame. Yes, there will be some thermal bridging, but it wouldn’t “suck all the heat out of my house”, would it?

I’m unsure if I should take those concerns seriously, because I live in quite a cold climate. I’d love to know what you all think.

I added a picture as an illustration of the issue, not my project. My insulated floor will reach 10cm above the bottom plate.

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  1. Expert Member


    The loses under the walls are in the noise in term of your thermal envelope. Don't worry about it.

  2. Expert Member
    NICK KEENAN | | #2

    The steel doesn't "suck" the heat any more than the cold air around it.

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