@Tom Tee posted:Backdrops:
I saw your mention of using double face carpet tape. I have used that for many years in the flooring industry. It gets soft with warmth, heat rises to the ceiling, your tape will be up near the ceiling, you back drop may be on the tracks.
We used Velcro tape held in place with rubber cement. The seams were also done with rubber cement. The back drop was able to be reused when the layout came down.
We use the premium backdrop material from Backdrop Warehouse, excellent material. We find that the back drop installs best with full height Masonite backer. I normally used 36" backdrop on 37" Masonite.
Backdrop Warehouse has a rather involved website but the product is superior to work with and the images do not appear as though they were shot with a panning camera. The near and far views are realistic.
Hang your backdrop before you build against the wall. I failed to do that once, never again!
Ok Tom, you're scaring me, good job! 
My basement rarely sees 72 degrees, it does get some service from the first floor a/c. That, and being a walkout, I don't see humidity much above 40% this time of year. The double sided tape I was considering is not the heat activated stuff. I would have done 36" masonite but recently I've only found the 3/16" sheets and they bow too easily. This 1/4" stuff at 4" wide will support 4 lbs without bowing when attached every 32". Nothing is in stone regarding hanging the backdrop and it may even be necessary to raise it an inch or so above what I have now.
I'm probably using the 3 scene, eastern mountains and hills category from Backdrop Warehouse. The length of the valance currently is just under 30'.
