Use code GIFT20
What about using a large diameter tapered plastic plug? Back at my old job, we used these tapered plugs for a lot of uses, from tap oil (small plug) to catch basins for a variety of other uses. You can get them in very large sizes, simply drill a hole through the center, and hang on the the edge when you're drilling through the ceiling.
To open up the wall, is that a pair of steel channels supported by a round steel tube?
The insulation face flanges were not attached to the stud and rafter faces, which reduces the effectiveness of the insulation.
Attractive in appearance, but is it a living space? It looks like the building was over-designed with an emphasis on expensive custom windows and doors, and no real emphasis on long term occupation. Sure, it would be nice to visit, but I wouldn't want to live there. There are numerous approaches to designing one room/divided buildings, and this one looks nice, but it's a Starbuck's, not a home.
I hope it never snows where this building is built...
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