I have the cardboard roof panels cut and trimmed. I had purchased 5 3-ply Midwest Products 1/32 x 12 x 24 Birch Plywood panels (252-9836) from my local Menards store to use instead of the cardboard panels. The first 2 panels were nice and flat, the other 3, not so much. I had put weights on them, bowed them the opposite way, tried to let gravity and Mother Nature have her way and they're still bowed. The Menards store has 2 more sheets and they're just as bad as the 3 that I have. Is there anyway to flatten out these panels? I don't see Menards getting anymore panels in until these are gone. Should I wet them and weight them down again? I'm at a loss currently. Any help would be greatly appreciated.
Here's the lighting with the roof on the structure. I can paint the under side white to reflect more light when the time comes. Also, these kits come with black "gravel" for the roof. I'd like to use a gray "gravel" to simulate the pea gravel normally used on roofs, and use the black around the smoke jacks to simulate the sooty gray gravel. Anyone have such a source or link to said product?
Thanks in advance....