Architectural Sheet Metal Manual 7th Edition (SMACNA 1120) is completely revised and contains the most comprehensive set of recommended practices available for proper design and installation of custom-fabricated architectural sheet metal including roof drainage system design for scuppers, gutters and downspouts. The book features more details in the historical restoration section on skylights, cornices and spires; new moisture and maintenance guide with underlayments; mechanical fasteners and soldering guidance; and enhanced metals selection data. Offers new construction techniques and alternative methods of design and installation reflecting climatic conditions and rainfall rates. An upfront, fast “look-up” key speeds information retrieval. Also covers flashing, metal roofs, copings, gravel-stop fascia. Includes wind uplift pressure test reports confirming superior performance of custom-fabricated metal roofing. Applies to commercial, industrial and residential buildings.