I can't tell how the inside is made. But it is possible to attach the shade cloth inside. Also you could put it on the outside by attaching cleats on the cross members on the long sides of the greenhouse. Have the shade cloth made with grommets or attach the plastic clip ons. Run rope in and out of the grommets and attach to the cleats as you are going. Shade cloth inside. Solar cover attached with clip on grommets and rope.

Thank you all so very much for your sweet comments. I truly appreciate each one! Funny, but seeing the pics on my computer (instead of my phone, where I posted them) makes the band look more gray than green. It's an unusual color - sort of a grayish green, but definitely to the green side. Anyway, I'm surprised at how much I'm loving this! Last night provided the ultimate test (does it truly provide privacy after dark?), and it passed with flying colors. I'm really pleased with how it filters light but blocks potential peepers. ;-) Chickadee, the painting over the tub was hung sort of on a whim, but I decided I liked it so it stayed. It's one that was displaced from the library when we had our floor-to-ceiling bookshelves installed not long ago, and has been sitting in a closet for a few weeks. I'm glad I was able to use it -- it's of Jenny Lake in the Grand Tetons, a place I have fond memories of visiting as a child. It was painted by a dear little lady who resided in the assisted living facility where my grandparents lived for awhile. I have another one of her paintings on another wall in the bathroom as well.

I just spoke with the person who had placed the original order for our Alta shades (lesser of the H-D shades?) and she said that she wouldn't reorder from them right now. needless to say they are backed up in production and not only was my order delayed but came in all wrong - one with valence, one not, one too short, one too long. I'm ordering H-D shades next just fyi @Shadesbyshane.

Draperies would look good. I would not do a valance.