After the structure had been fully completed, then came the process of wrapping it in heat shrink wrap. It was at this point when we realized, instead of being sold 'heat shrink wrap', we were instead sold regular 'shrink wrap' which does not have the shrinking capabilities of the heat shrink. However it was still an industrial product that was waterproof and when layered formed a tight seal around the entire structure.
The above photo shows what the finished dome looked like with the window inserted, but also is the best image to display the shrink wrap on the exterior. Also again you can see the twisting affect from the zip tie issue outlined in the previous post, however oddly enough, those twisting joints became the strongest and when pushed on the structure felt VERY solid and didn't move at all (this can be seen briefly in the video at the 4:05 time stamp of video in part 3)
Although the wrapping was not the product we intended to use, we applied it very much the same way we intended to. (with some minor changes here and there to cover gaps that we missed when covering the frame)
The above photo shows the finished window with an acrylic pane. It was constructed almost exactly how we intended to with the wrap acting as a flashing and silicon and a rubber seal waterproofing the joint.