Construction R value for insulated shipping container

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Construction R value for insulated shipping container

Postby willy witlox » Wed Oct 24, 2018 10:31 am

What perimeters are to be used to determine construction R-value for a Corten Steel shipping container used as habitable spaces?
With this type of construction what is the difference in how the insulation is used. Sprayed on filling the corrugations or sheet insulation with air cavity(corrugations)?
willy witlox
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Re: Construction R value for insulated shipping container

Postby Albrecht Stoecklein » Wed Nov 14, 2018 6:39 pm

Hi Willy,

Sorry for my late reply.

The perimeter length would be calculated just as normal. The question whether it is sheltered or not really depends on whether you add some perimeter boards around the subfloor space.

I don't think the wall insulation detail would make a big difference. The difference would be that in one case the corrugations are filled in with insulation whereas in the other case you are creating air gaps. However, in both cases the ridges of the corrugations would form significant thermal bridges through that layer, so that effectively only the thickness of the insulation on the top of these ridges would count.

I hope that makes sense.
Albrecht Stoecklein
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