Denver voters passed one of the strictest green roof mandates of any city in the world earlier this month.
Initiative 300, passed with about 54% of votes cast, creates a new building code that requires vegetative roof systems or solar panels for most buildings 25,000 sf or larger constructed after Jan. 1, 2018. The measure is more stringent than other green roof codes because it also requires many existing buildings to be retrofitted with green roofs when a roof needs replacement.
Older buildings that cannot support the load of a vegetative roof can get an exemption. The measure is intended to help keep the outdoor air cooler, reduce stormwater runoff, reduce the amount of energy consumed by air conditioners, and, in the case of PVs, generate clean energy.
Opponents of the referendum were concerned that it would be costly and hurt nonprofits and affordable housing programs. Advocates conceded that green roofs cost more, but argued that they would pay for themselves in about six years.
Related Stories
Codes and Standards | Aug 17, 2018
Zoning changes can be crucial to filling large, empty retail spaces
Alternative uses often require action by local officials.
Codes and Standards | Aug 16, 2018
Nearly a quarter of opioid overdose deaths attributable to construction workers
Massachusetts public health study finds pressure to work in pain contributes to problem.
Codes and Standards | Aug 15, 2018
ICC creates new committee on building safety and security
Will include experts from many different disciplines.
Codes and Standards | Aug 14, 2018
Philadelphia adopts 2018 IECC energy code, while state opts for 2015 code
City is one of the first jurisdictions to adopt newest code.
Codes and Standards | Aug 9, 2018
Denver’s goal of 100% renewable energy by 2030 includes net zero energy buildings
Community solar programs for low income residents part of plan.
Codes and Standards | Aug 8, 2018
Too much parking in U.S. cities proving costly
As car ownership rates drop, excess parking seems more wasteful.
Codes and Standards | Aug 7, 2018
International Fire Safety Standards (IFSS) Coalition created
Professional associations and building standards organizations join forces.
Codes and Standards | Jul 31, 2018
Workers allegedly held in captivity by construction subcontractor in San Jose pay theft case
Contractor pays $250,000 in back wages in Dept. of Labor enforcement action.
Codes and Standards | Jul 17, 2018
Heat island effect can turn deadly in extreme conditions
Of all the impacts of global climate change, it’s extreme heat that kills more Americans each year than any other weather-related event.
Codes and Standards | Jul 17, 2018
NIMBYism, generational divide threaten plan for net-zero village in St. Paul, Minn.
The ambitious redevelopment proposal for a former Ford automotive plant creates tension.
