The American Institute of Steel Construction and the Steel Joist Institute recently released a comprehensive roof design guide addressing rain loads and ponding.
Design Guide 40, Rain Loads and Ponding provides guidance for designing roof systems to avoid or resist water accumulation and any resulting instability. It includes an in-depth review of rain loads and ponding effects to help design professionals properly and efficiently design for ponding on roofs constructed with structural steel, open web steel joists, and joist girders.
It also contains several recommended methods of analysis that can be used to consider the effects of ponding, methods of design accounting for ponding effects, and a presentation of the SJI Roof Bay Analysis Tool, along with design examples that illustrate the concepts discussed.
Design Guide 40 is available for download at aisc.org/dg.
Related Stories
| Aug 19, 2013
HUD, New York City collaborate on research center to boost storm resilience
The U.S. Housing and Urban Development Department and New York City will collaborate on a project to create a new research institute and a city-federal park at Jamaica Bay, Queens.
| Aug 16, 2013
Dept. of Homeland Security offers tool to analyze building risk and resilience
The Integrated Rapid Visual Screening tool is designed to determine initial or relative risk and resilience for buildings based on visual inspection only.
| Aug 8, 2013
AAMA releases specification for non-residential fenestration BIM
The American Architectural Manufacturers Association (AAMA) released AAMA 912-13, Voluntary Specification for Non-Residential Fenestration Building Information Modeling (BIM).
| Aug 8, 2013
New green property index could boost REIT investment in more sustainable properties
A project by the National Association of Real Estate Investment Trusts (NAREIT), the FTSE Group, and the U.S. Green Building Council to jointly develop a Green Property Index could help REITs attract some of the growing pool of socially responsible investment money slated for green investments.
| Aug 2, 2013
Design of world’s tallest wood skyscraper would be more sustainable than steel alternative
Architecture firm C. F. Møller has proposed building the tallest wooden building in the world in Stockholm, Sweden.
| Aug 2, 2013
Netherlands Institute of Ecology built to zero waste principles
The Netherlands Institute of Ecology was designed and built to be the most sustainable building in Holland and incorporate the zero waste principles of Cradle-to-Cradle design.
| Jul 17, 2013
WorldGBC, IFC pledge to rapidly scale up green construction in emerging markets
IFC, a member of the World Bank Group, and the World Green Building Council (WorldGBC) are collaborating to rapidly scale up the construction of green buildings in emerging markets.
| Jul 11, 2013
Bill to borrow more for college spending in Michigan criticized due to ‘higher-ed bubble’
An amendment to a Michigan appropriations budget authorizes an increase in state debt to pay for state university construction projects. But some experts see a “higher education bubble” on the horizon, and said more taxpayer debt for more buildings is a bad idea.
| Jul 11, 2013
Skanska exits U.S. Chamber of Commerce over LEED controversy
Skanska USA resigned from the U.S. Chamber of Commerce over the Chamber’s decision to support the American High-Performance Buildings Coalition.
| Jul 11, 2013
DOE releases stricter energy efficiency standards for new federal buildings taking effect in 2014
The Energy Department released stricter energy efficiency standards this month for new federal buildings.
