I'm intrested in buying a house built in 1947 and it has asbestos siding and roof. I want to buy it and live in it for a couple of years and then demolish it and build a new house. will you please tell me the risks and expense involved in this. Thanks

I need you to answer a couple questions. First, local regulations vary on disposal of non-friable asbestos containing materials.
Where are you located?
What kind of siding i.e. cement?
What kind of roofing i.e. asphalt composite?
If the materials must be removed, packaged and disposed of, will you DIY or hire the work?
Finally, what risks are you concerned with. Financial, regulatory, health or all of the above?

Answer these questions, and we can narrow down an answer appropriate for your situation.