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
| 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.
| Jul 11, 2013
Pennsylvania legislators work on bill to update demolition codes following fatal building collapse
Pennsylvania lawmakers are working on a bill to update demolition codes, in the wake of a fatal building collapse in Philadelphia in June.
| Jul 11, 2013
Lawsuit challenges modular apartment project in New York City
A plan to build pre-fab apartment buildings at Atlantic Yards in Brooklyn, N.Y., has been challenged by a lawsuit filed by the Plumbing Foundation in Manhattan Supreme Court.
| Jul 5, 2013
OSHA to launch program to protect workers from isocyanate exposure
The Occupational Safety and Health Administration (OSHA) has announced a new national emphasis program (NEP) to protect workers from serious health effects caused by occupational exposure to isocyanates.
| Jul 5, 2013
New California building code expected to boost energy demand response technology
The California master building code, set to go into effect on Jan. 1, 2014, includes a few changes that could push automated, open-standards-based demand response into the mass market.
| Jul 5, 2013
USGBC adds several new LEED pilot credits
The U.S. Green Building Council has added several new LEED pilot credits to the LEED Pilot Credit Libraryin the past few months.
| Jul 5, 2013
Spray Foam Coalition supports new professional certification program for applicators
The Spray Foam Coalition (SFC) of the American Chemistry Council announced its support of the Spray Polyurethane Foam Alliance’s (SPFA) new Professional Certification Program for spray foam applicators.
| Jul 5, 2013
Some industry insiders see design-build as easier path to LEED certification
The design-build construction delivery method may have advantages during a LEED certification process.
| Jun 27, 2013
Lease-accounting legislation could hurt construction industry
Regulatory bodies have proposed changes in how leased equipment is treated on a corporate balance sheet.
| Jun 27, 2013
AGC urges Congress, Obama to reject caps on construction workers in immigration legislation
The unemployment rate in the construction sector in May was the lowest it has been in five years, which could signal a coming worker shortage, according to the Associated General Contractors of America.
