Flat roofs usually come with a 10- to 20-year warranty but the roofs can last 25 years if properly installed and maintained. The traditional hot-tar-and-gravel roof is built from three or more plies of waterproof material alternated with hot tar and ballasted by a layer of smooth river stone.
Differences between Spices and Herbs. For the most part, chefs use the terms spices and herbs interchangeably, but there are differences. Spices that originate in tropical or sub-tropical climates and are fragrant or aromatic parts of plants include cinnamon, cloves, ginger, or pepper.
herbes de Provence. - A blend of herbs used for seasoning, such as basil, bay leaf, chervil, fennel, lavender, marjoram, oregano, rosemary, sage, summer savory, tarragon, and thyme. See also related terms for seasoning.