I'm going to move to an old house and doing renovation. So far everything is going well, insulation and walls using plywood are half done. My coworker heard about my progress and was concerned about where the plywood come from. I couldn't answer that question precisely, cause I bought it in a home center. She said that in Japan many cases went public where build materials came from contaminated area. Before I demolish my wall. I need Geiger counter to prove. Has anyone experience with that?
