I'm hoping someone can help me out with this one. We have built 14' tall Hollywood flats with an unframed onstage edge to give the appearance of old school wing and drop scenery with all the molding painted on. The framing is set back 5" from the edge of the lauan. Unfortunately, the lauan edge is curling up like a Frito chip in the TX heat and humidity. Has anyone had any luck laminating a piece of 1/4" ply to the back to pull some of the waves out and give it a nicer edge? Any ideas or opinions would be greatly appreciated. Thanks.