Insulating a container in Phoenix taught me the hard way about solar gain

I built my first container home last summer in Phoenix and used standard fiberglass insulation like a regular house. After three months of brutal 120 degree days, the interior was hitting 95 degrees even with AC running. Had to rip it all out and switch to closed cell spray foam with a radiant barrier - now it stays at 78. Anyone else run into this with metal buildings in hot climates?

2 comments

2 Comments

the_gray14d agoMost Upvoted

Oh man, I feel your pain, same thing happened to me with a shop building in Tucson.

burns.brooke14d agoTop Commenter

And then it rained for three straight days right after the slab was poured.