I used 3/8" Double Cell Blackout shades with the "top-down, bottom-up" feature and we love them. We had regular metal RV blinds before and there's no
comparison. We actually love these so much, I carry a little sample piece to show people at rallies.
The blackout feature typically means the cells are lined with a reflective (mylar?) material, which significantly reduces heat transfer
above just the cellular structure (which traps air). The difference in heat/cold transmitted through the windows is phenomenal.
The blackout feature also blocks people from being able to see in your coach at night when the lights are on inside.
The top-down feature means we can let light in during the day without people being able to see in.
I got the "corded" variety; they also have cordless ones now. I assume those are like typical RV shades where you just grab the shade to raise/lower
it.
Tidier looking, but could make it difficult to lower the top of the shades behind a cabinet.
The ones we bought are a little thicker than stock so I had to move the cabinets out a little, but that wasn't particularly difficult.
You could probably stick with the single cell blackout shades and get most of the benefit with less total thickness, but it won't insulate quite as
well.
I got ours at JustBlinds.com, but they've made their website a lot less helpful than it used to be.
There are a ton of places online that make shades to whatever size you want for fairly reasonable prices.
Most will send you free samples of the material so you can look at the actual colors, etc.
Or you can probably go to Lowes or such.
jwid,
Karen
1975 26'