Q.I was wondering what should be done to old reclaimed barnwood before it can be used inside a home. I plan on using it for wainscot in a basement remodel; should it be treated to kill any bugs or mold?A.Contributing editor Paul Fisette responds: You could apply chemicals that would be toxic to any wood-destroying organisms and mold that might be present, but there are safer alternatives.To me, the most appealing is to find a local sawmill that has a dry kiln and have the barnboards kiln-dried at 160F for 24 hours to kill any insects that might be living...