I did my first inspection of a “shipping container” house. This was a new construction inspection for the owner. It looked nice on the surface, with lots of high tech gizmos. Closet lights turn on automatically when opening the door, for one. However, looking beneith the glitz, it was a disaster. As an ancillary service, I performed a blower door test for air leakage, results were 24 air changes per hour (ACH). Minnesota Energy Code is 4 ACH.
My question: I don’t have experience with steel rafters. Is this legitimate? These were “channel” style, like steel studs. There was no blocking mid-span. Rafter span is 12 feet. We have 40 psf snow loading requirement here. Sheathing is OSB, screwed to the rafters. I did insert a disclaimer on my report relative to engineering and snow loading capacity of this structure. However, I’m wondering if is this is legitimate rafter construction.
This attic may become part of the conditioned space of the home, with closed cell insulation sprayed on the roof sheathing and gable framing. Heat pump/AC tubing and domestic water pipes are run through this attic.
There is a long list of visible issues on this attic image.
Here’s an image of the home from the outside:
