New green code spells out thermal requirement for roof retrofits

The Associated General Contractors of America released a new, first-of-its-kind, decarbonization playbook designed to help firms assess, track, and reduce greenhouse gas emissions on projects. The AGC Playbook on Decarbonization and Carbon Reporting in the Construction Industry is part of the association’s efforts to make sure construction firms play a leading role in crafting carbon-reduction measures for the industry.

The Federal Emergency Management Agency recently sent a letter to officials in Lee County, Florida alleging that hundreds of homes were rebuilt in violation of the agency’s rules following Hurricane Ian. The letter provoked a sharp backlash as homeowners struggle to rebuild following the devastating 2022 storm that destroyed a large swath of the county.

The Canadian Province of British Columbia is updating its building code to expand the use of mass timber in building construction. The code will allow for encapsulated mass-timber construction (EMTC) buildings as tall as 18 stories for residential and office buildings, an increase from the previous 12-story limit. 

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.