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About This Item
This 44-page Digest outlines procedures for the selection of steel joists that are required to meet the stability requirements resulting from the accumulation of water on a roof system, i.e., ponding. This digest provides background information and discussion concerning the effects of ponding, and makes use of the SJI Load Tables as an aid in assisting designers to comply with the SJI Standard Specifications. The benefits of camber and pitch of joists in reducing the effects of ponding are discussed and a technique that accounts for these benefits is shown.