Luckily, no - you can't see through the glass. It is heavily frosted and it has a weird pebble texture too. On the other hand, we have glass blocks (two ENTIRE WALLS!!) in our master bath and I call it the Naked Kaleidoscope. I had no idea how clearly you can see through it until one day I was coming up the street toward the house and could quite easily make out the hot pink of my orchid that is on the edge of the shower. Ugh! You can see through the top triangle, theoretically, but once the surround and curtain is installed, that wouldn't be an issue. Plus, I cannot even calculate the angle you would have to stand at in order to catch a glimpse of (maybe) the top of someone's head.

I am not an expert on installing spray foam insulation on roof decks. However I find it an interesting topic and trying to learn the advantages and disadvantages. Here is an interesting article which is a summary of this report from Building Science. My understanding if you live in a cold climate, there is a possibility of moisture accumulation on the underside of the roof deck if it is covered with open cell spray foam. The article says a way to avoid this is to cover the spray foam with a vapor retarder. Sealing the attic floor will help moisture from entering the attic. However moisture can still pass through a sheet rock ceiling. Sealing the attic floor does not guarantee you will not have a problem. Have you measured the humidity in the attic? Do you see moisture collecting on the spray foam insulation? These are things to examine to determine if you have a problem or not.

Hello - I had to have a vent stack relocated on my roof due to solar panels being installed. The stack had to be moved from the far left of the house (directly above the bathroom) to the far right (around 35') or so. The plumber who came out to move the piping cut the original elbow pointing up to the roof and added a new one which ran lengthwise all the way down the attic to the far other end where it was then routed upwards and back through the roof on the other end. The roofers took care of the roof work from there. I went up a day later to look at the work and noticed he used 3 long sections of pipe with a coupling in between them. The connections seemed to be tight, but the one was angled slightly like it wasn't fully seated in the coupling. It was visibly primed / glued though. Is there any way to test to see if all the connections are air tight? The pipe was buried under the insulation and I was a little concerned if it wasn't fully air-tight that sewer gas could leak out of the connection? Is this a big deal to worry about? The house was built in 2000, so it's newer build and has appropriate traps in all the fixtures.

Our house had a bathroom in a space like that when we bought it. It was (a) not to code, and (b) not useful for my tall husband. We lived with it for 2 years and then demolished everything (not just down to studs - it was re-framed in a totally different configuration that allowed for actual habitable space). You really need more than 3' of width to accommodate the toilet and sink plus a pathway to the shower. The only other option I can think of would be to bump the wall into the bedroom by 2-3' to achieve that width. Or add a dormer to raise the ceiling. I usually advocate for creative solutions, but I don't think I'd spend time or $ to make a bathroom work in that space as it is.