I would LOVE to do this on a small scale (piece of plywood) and photograph my science posters against it. But, I would probably paint it white. :D
spray-foam roof insulation applied to this refinished attic.more expensive, but effective and allows more useable space as opposed to regular insulation.
Global Spray Polyurethane Foam Market to Develop at CAGR owing to Surging Demand from the Construction Market
there’s nothing better than expanding foam for sealing energy-wasting air leaks. These are the best ways to use foam on energy-saving projects, plus tips for getting the most out of a can, and some other ingenious uses for this versatile product.
Seal sill plates and rim joists / Seal basement air leaks