Donna writes from Port Jervis, New York: "Recap has just started to blow more insulation into existing exterior walls, my concern is they are drilling the holes and then throwing away the wood blocks and just replacing the siding, when I asked them don't they patch the holes? they said no, the government said they don't have to any more, I live in NY state - does this seem right to you?"

Answer: Unfortunately, I do not have information about local codes. I suggest contacting a housing inspector in your state.