u/JuggernautOk6294

I hired a contractor to gut and insulate my attic into bedrooms. I did not specify the r value, But they knew this was for bedrooms. They put in batted r13 in walls and against the roof/ ceiling. They say it is fully insulated at this point, but it is boiling in the attic and ceiling is hot to the touch. In researching why it is so hot, just found out code would be r49. What should I do? Should the contractors have known to put in r49? Is that a violation of code and thus the contract that stated everything would be completed to code? Zone 5 in PA.