Roofing looks at traditional roof coverings used on historic buildings. Many materials and systems have been used to provide roof coverings, and the book provides information about their technological evolution, the processes causing deterioration, and ways of assessing problems and solutions. Repairs, maintenance and conflicts with modern practices are also covered.
Books can be attributed to "Unknown" when the author or editor (as applicable) is not known and cannot be discovered. If at all possible, list at least one actual author or editor for a book instead of using "Unknown".
Books whose authorship is purposefully withheld should be attributed instead to Anonymous.