Roofs - Roofing - Waterproofing , The Science and Technology of Traditional and Modern Roofing Systems by Dr. Heshmat O. Laaly
www.roofsandroofing.com
Roofing Book, The Science and Technology of Traditional and Modern Roofing Systems - Now you, too, can be an expert on roofing and waterproofing and have the answers to all your roofing and waterproofing questions at your fingertips with Dr. Heshmat O. Laaly's two volume book set entitled, The Science and Technology of Traditional and Modern Roofing Systems.