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
Plumbing | Mar 18, 2024
EPA to revise criteria for WaterSense faucets and faucet accessories
The U.S. Environmental Protection Agency (EPA) plans to revise its criteria for faucets and faucet accessories to earn the WaterSense label. The specification launched in 2007; since then, most faucets now sold in the U.S. meet or exceed the current WaterSense maximum flow rate of 1.5 gallons per minute (gpm).
Codes and Standards | Mar 15, 2024
Technical brief addresses the impact of construction-generated moisture on commercial roofing systems
A new technical brief from SPRI, the trade association representing the manufacturers of single-ply roofing systems and related component materials, addresses construction-generated moisture and its impact on commercial roofing systems.
Codes and Standards | Mar 7, 2024
Public comments sought on measuring lifecycle of greenhouse gas emissions of buildings
ASHRAE and the International Code Council seek comments on their jointly developed document, Proposed ASHRAE/ICC Standard 240P—Quantification of Life Cycle Greenhouse Gas (GHG) Emissions of Buildings.
Green | Mar 5, 2024
New York City’s Green Economy Action Plan aims for building decarbonization
New York City’s recently revealed Green Economy Action Plan includes the goals of the decarbonization of buildings and developing a renewable energy system. The ambitious plan includes enabling low-carbon alternatives in the transportation sector and boosting green industries, aiming to create more than 12,000 green economy apprenticeships by 2040.
AEC Tech | Feb 20, 2024
ABC releases technology guide for AI in construction
Associated Builders and Contractors has released an artificial intelligence (AI) technology guide for the U.S. construction industry. AI in Construction — What Does It Mean for Our Contractors? outlines definitions, construction use cases, and considerations for the implementation of AI in construction.
Codes and Standards | Feb 20, 2024
AISC, AIA release second part of design assist guidelines for the structural steel industry
The American Institute of Steel Construction and AIA Contract Documents have released the second part of a document intended to provide guidance for three common collaboration strategies.
MFPRO+ News | Feb 15, 2024
UL Solutions launches indoor environmental quality verification designation for building construction projects
UL Solutions recently launched UL Verified Healthy Building Mark for New Construction, an indoor environmental quality verification designation for building construction projects.
Sustainability | Feb 7, 2024
9 states pledge to accelerate transition to clean residential buildings
States from coast to coast have signed a joint agreement to accelerate the transition to pollution-free residential buildings by significantly expanding heat pump sales to meet heating, cooling, and water heating demand in coming years.
Standards | Feb 1, 2024
Prioritizing water quality with the WELL Building Standard
In this edition of Building WELLness, DC WELL Accredited Professionals Hannah Arthur and Alex Kircher highlight an important item of the WELL Building Standard: water.
Modular Building | Jan 19, 2024
Virginia is first state to adopt ICC/MBI offsite construction standards
Virginia recently became the first state to adopt International Code Council/Modular Building Institute off-site construction standards.