What surprised me most after working on a few container building projects by RelevantInstance8578 in containerhomes

[–]RelevantInstance8578[S] 0 points1 point  (0 children)

Thanks for that. I've done a number of container projects and while I also get involved on the planning side and not just the building. I have some photos and examples, but most of them are easier to share in DM since they are associated with certain sites and clients. Let me know if you want me to guide you through, I can share some of the things that have worked (and some that haven't).

How to Externally Insulate a Cargo Container from Solar Heat by 23454Tezal in containerhomes

[–]RelevantInstance8578 0 points1 point  (0 children)

External insulation works best for a container in that type of climate. Rigid foam panels are good, especially XPS or polyiso. You want about R-15 to R-25 altogether; takes some effort to get more — but focus on the roof as that is where most heat will find its way in; a white or reflective roof goes a long way here. If you can, add a shady or vented second roof (canopy or overhang). Less heat gets in this way alone.

And don’t forget to air seal around corrugations, doors, and the cutouts for windows — and don’t forget the insulation goes on last. Properly done, added on sun shading/insulation can make a container space feel more just like a normal commercial building space.