"how flammable is a 20-year old heart redwood deck with a good coat of fully-cured sealer?" -MM "We have no idea how flammable wood is and why would ...

Thanks. Sorry to be dumb, but how flammable is a 20-year old heart redwood deck with a good coat of fully-cured sealer? Its dry right now and its been...

I guess the related question is "How flammable is properly sealed redwood deck?" Probably not very would be my guess... and if the fire is hot enough...

Thanks!