Greetings! Brand new to this forum. My house is over 25 years old and I am looking to have new siding put on my house. I had Amazing Siding come out and give me an estimate and they said they would not tear down the original asbestos siding. They would simply place over it. They said it would be to costly to have it removed. I have some concerns in regards to that. Wouldn't nailing through the existing shingles cause them to shatter? I think of asbestos being very brittle. Also, how would they know where the studs are when nailing in the new siding? These are questions I think about asking after they leave.