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
| Jan 8, 2015
Construction industry could be hurt by non-renewal of terrorism insurance bill
Insurance industry experts say without federal terrorism reinsurance in place for 2015, resulting canceled property/casualty insurance coverage and market chaos could be disruptive to the economy.
| Jan 2, 2015
Ohio’s Licking County to hire construction stormwater runoff specialist
Formed to focus on agriculture, the Licking County (Ohio) Water and Soil Conservation District has branched out to oversee construction sites.
| Jan 2, 2015
Standards groups join forces to spur more sustainable parking facility design
The International Parking Institute, Green Parking Council, and Green Building Certification Institute have joined forces to promote the design of more sustainable parking facilities.
| Dec 23, 2014
EPA okays coal ash recycling in construction materials
The Environmental Protection Agency ruled that the use of coal ash produced in power plants can continue to be incorporated into construction materials.
| Dec 23, 2014
Dunkin’ Donuts launches green building certification for its restaurants
Dunkin Donuts has launched a green building certification program to help franchisees build sustainable, energy-efficient restaurants.
| Dec 23, 2014
EPA releases WaterSense draft specification for flushometer-valve toilets
The U.S. Environmental Protection Agency's WaterSense program has released a draft specification for water-efficient flushometer-valve toilets.
| Dec 23, 2014
American Iron and Steel Institute publishes design guide for new profiled steel diaphragm panels standard
The American Iron and Steel Institute (AISI) published AISI D310-14, “Design Examples for the Design of Profiled Steel Diaphragm Panels Based on AISI S310-13.”
| Dec 18, 2014
New federal regulations impact construction firms doing business with Uncle Sam
Federal contractors may be subject to several new rules in 2015 that impact how they are selected for contracts and how they do business with the federal government.
| Dec 18, 2014
ASHRAE/IES energy standard could become more applicable for global use
A proposed addendum to ANSI/ASHRAE/IES Standard 90.1-2013, Energy Standard for Buildings Except Low-Rise Residential Buildings would make the standard more applicable for use around the world.
| Dec 18, 2014
Boston testing mobile building permit tracking app
The app called Permit Finder could free city employees from having to respond to the 30 to 40 permit status-related calls they receive each week.