I finally got around to making and installing the curtains based on this thread (no pun intended??). I picked up some beige blackout curtain material from Joann fabrics (in the US), cut it to size, and hemmed it using heat activated hemming adhesive, which was nice so that I didn't need to sew anything. The fabric is white on the outside to reflect heat, and beige on the inside so it looks pretty good with the light blue interior of the van. To attach the curtains I used the aforementioned weld nuts with
1/2" long 1/4-20 threaded knurled knobs. I purchased a
3/8" grommet kit off Amazon to install grommets in the fabric to hang off the knurled knobs. When not in use the curtains can easily be pulled back and then I just need to tighten one of the knobs to "lock" the curtain in place without the need for ties or anything like that.
For privacy and to block light from the front of the van, I hung a curtain behind the front seats at attached it to the front-most curtain knobs on the left and the right. I still have to do the back window and will probably do the foil-backed foam option that
@TimB mentioned.
I just did a quick test with all of the curtains fully drawn and the van is noticeably cooler inside (it's a bright sunny day in Colorado so the van heats up quite a bit with the strong sun here at altitude).
Overall this was a very easy and CHEAP install. Total cost of everything was just under $100, and that includes the $35 grommet kit that I will use again.
View attachment 26230View attachment 26231View attachment 26232View attachment 26233View attachment 26234