DFW Texas contractor had a client with State Farm. Original inspection told me that there was some weak decking on the roof. When we tore the roof off sure enough the decking was extremely brittle and unsafe to walk on the rear slope of the house 4/12 pitch as it was cratering under our feet and a few sheets on the left and right slope. This was not a useable surface. State Farm Refused to cover the replacement of the decking to make it safe to walk or suitable to nail. We already had the roof off so at this point I really had no options. The decking was 7/16ths OSB. Current code in Ft.Worth is 5/8ths (I think?) Customer has Law’s & Ordinance coverage. I feel like they should have paid to re deck the whole house. But they flat out refused. Any suggestions?