Our home has intricately carved Brazilian rosewood doors that need to be refinished to preserve and protect them from the weather, especially the harsh New England winters. We have hired a professional painter, but he is somewhat at a loss on how to best treat and preserve the doors and wants to proceed with extreme caution since the doors are a work of art and irreplaceable. Does anyone have a suggestion for him on how to best treat and protect rosewood against the elements and preserve its natural beauty? Thank you for any help you can give us.