Have a residential roof slate tile roof which was in good condition until windstorm hit and a large tree fell into the roof. It is assumed it was an old Johns- Mansville product and is no longer made or are replacements available. This was a high quality product even down to the copper nails used. This roof had a 107 years before this storm.
I am looking for a 100 year product for the replacement of this roof so that i can negotiate with the insurance company for payment of this roof. Any suggestions will be greatly appreciated.