I'm working as a contractor for a guy. He wants to cut corners on houses he is going to rent. He has a house that had a severe roof leak. There is extreme damage to several rooms. He dosen't want to pay the money to demo and rebuild with rock tape mud texture etc. He wants me to tear out then put up paneling. Is that legal? If not or even if yes can you direct me somewhere I can look up the codes?
What law does your area follow? The building inspector can tell you. Then you can look that up.
No inspector? Then likely no codes to follow. Then call the fire dept - as rental housing, they may have you follow a different standard than a homeowner might be required and you'll likely need Sheetrock or similar for fire resistance.