Green Roofs - Living Architecture Monitor - Spring 2013 - (Page 28)

PROJECT PROFILE House call holding 60 to 80% of rainwater on the roof. Preliminary meetings with the City Public Works Department realized a requirement to replace and upgrade the existing storm sewer to a 100-year flood capacity at an estimated cost of over $300,000. The owner and architect, Rob Wellington Quigley, FAIA, researched using a green roof as a way to mitigate the stormwater requirement. Paul Kephart of Rana Creek provided FCH with design assistance using this “revised” a run-down neighborhood of technology. Victorian houses interspersed Preliminary analysis showed with deteriorating 1960’s apart- that the installation of a green ment buildings. At less than roof could reduce the stormhalf an acre, the tight infill site water runoff to such an extent required a creative and efficient that only a new 10-year event design. pipe would be required. This The building’s crowning could be accomplished at the glory is San Jose’s first green same cost or less than the 100roof, which was engineered to year storm sewer “upgrade”. A maximize stormwater retention, series of meetings with various SAN JOSE, CALIfORNIA’S fIRST GREEN ROOf IS SETTING THE STANDARD HIGH WITH COMMUNITy HOUSING DEVELOpMENT By: MARyANNE WELTON R eplacing an aging residential hotel near downtown San Jose, Casa Feliz Studios was developed in 2009 with 60 new apartments by First Community Housing (FCH). The energy-efficient apartments serve extremely low-income residents—35% with developmental disabilities—and are located in LIVING ARCHITECTURE MONITOR / SpRING 2013 / 28 ABOVE: Case Feliz green roof Image provided by: Steve Prohl OPPOSITE: Casa Feliz green roof design Image provided by: Rob Wellington Quigley, FAIA city departments was necessary to convince city officials that the green roof could indeed reduce the building’s stormwater runoff. The high cost of upgrading the insufficient storm drain system made the decision to add green roofs economically feasible, but the green roofs add much more to the building than simple stormwater retention. They provide habitat for wildlife, increased roof insulation and cooling, longer roof life due to the blocking of ultraviolet rays, and reduced ambient heat reflected from the roof (which increases the efficiency of the photovoltaic system). The non-irrigated

Table of Contents for the Digital Edition of Green Roofs - Living Architecture Monitor - Spring 2013

Green Roofs - Living Architecture Monitor - Spring 2013
From The Founder
On the Roof With...
Policy and Standards
Current Research
Living Architecture Meets Hurricane Sandy
How Healthy Is Your Hospital?
New Corporate Members
Professional Calendar
GRHC Board Member Updates
GRHC Buyer’s Guide
The Lucky 7

Green Roofs - Living Architecture Monitor - Spring 2013