Heads Up-Flashing Ahead

摘要

A survey of design and construction practices of window and door installations is presented after 17 years of ASTM E2112 Standard Practice for Installation of Exterior Windows, Doors, and Skylights. It has been and continues to be the nationally recognized, consensus reference. Design professionals and construction industry leaders have the opportunity to avoid liability for leaky buildings following sound (but often ignored) drainage principles, avoiding common design mistakes, and including simple but basic specification requirements. This focus on window and door opening head flashing options will illustrate critical conditions and provide examples for detailed solutions to avoid moisture infiltration problems in frame buildings. Examples of various sheet metal head flashings will be used to show design principles, detailing recommendations and specification criteria for fenestration installations with different water resistive barriers and cladding types.