I am thinking of starting a small bed and breakfast in the future and although it will have under six bedspaces I think I have to conform to new fire regulations. This means that all doors that lead to the main fire escape route have to be fireproof/hold back a fire for 30 mins. I have nice period panelled doors in my house that are currently stripped pine the lower doors are 4.7cm thick and the bedroom ones are 3.5cm thick. does anyone know if I can coat these doors, treat or paint these aso that they conform to the new standards?