Green Roofs - Living Architecture Monitor - Winter 2019 - 33

ON SPEC

Images courtesy S. Peck

A STRUGGLING GREEN ROOF
IN NEED OF MAINTENANCE

WE'RE FAILING OUR GREEN ROOFS:
HERE'S HOW TO STOP
BY GREG RAYMOND, GRP

I

n a world of inconvenient truths, perhaps the most inconvenient of all is that even our best technologies and smartest
environmental solutions only work when used as intended.
Sadly, when it comes to green roofs, that's often not the case.
Many cities, even the ones with excellent green roof mandates for new buildings, have poor regulations when it comes
to stewarding those same roofs after they're built and handed
off. While we pour lots of government funding, private money
and enthusiasm into green roofs, both enthusiasm and cash are
sorely lacking when it comes to maintaining installations over
time - with predictably negative results.
Making the issue harder to handle is the fact that statistics

LIVINGARCHITECTUREMONITOR.COM

are hard to come by. By my
estimate, at least 50 per cent of
green roofs suffer from some
level of neglect. At best, the
plant balance is off, nutrient
levels are low or stormwater
components are clogged. All
too often, green roofs die
and remain dead. Even if the
statistical evidence is slight, the
anecdotal evidence is everywhere; I see many brown roofs

(and not the good kind) during
my frequent trips to Chicago's
upper stories.
"We've noticed that too,"
says Jack Pizzo, Past President
of the Illinois Chapter of
the American Society of
Landscape Architects and
founder of Pizzo Group. "The
stewardship of those roofs
drops off after the contractual
requirements, and then what

LIVING ARCHITECTURE MONITOR / WINTER 2019 / 33


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Green Roofs - Living Architecture Monitor - Winter 2019

Table of Contents for the Digital Edition of Green Roofs - Living Architecture Monitor - Winter 2019

Table of Contents
Green Roofs - Living Architecture Monitor - Winter 2019 - IP
Green Roofs - Living Architecture Monitor - Winter 2019 - Cover1
Green Roofs - Living Architecture Monitor - Winter 2019 - Cover2
Green Roofs - Living Architecture Monitor - Winter 2019 - Table of Contents
Green Roofs - Living Architecture Monitor - Winter 2019 - AD1
Green Roofs - Living Architecture Monitor - Winter 2019 - 1
Green Roofs - Living Architecture Monitor - Winter 2019 - 2
Green Roofs - Living Architecture Monitor - Winter 2019 - 3
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Green Roofs - Living Architecture Monitor - Winter 2019 - 34
Green Roofs - Living Architecture Monitor - Winter 2019 - Cover3
Green Roofs - Living Architecture Monitor - Winter 2019 - Cover4
Green Roofs - Living Architecture Monitor - Winter 2019 - 42
Green Roofs - Living Architecture Monitor - Winter 2019 - 43
https://www.nxtbook.com/dawson/greenroofs/lam_2020Winter
https://www.nxtbook.com/dawson/greenroofs/lam_2020Fall
https://www.nxtbook.com/dawson/greenroofs/lam_2020Summer
https://www.nxtbook.com/dawson/greenroofs/lam_2020Spring
https://www.nxtbook.com/dawson/greenroofs/lam_2019Winter
https://www.nxtbook.com/dawson/greenroofs/lam_2019Fall
https://www.nxtbook.com/dawson/greenroofs/lam_2019Summer
https://www.nxtbook.com/dawson/greenroofs/lam_2019Spring
https://www.nxtbook.com/dawson/greenroofs/lam_2018winter
https://www.nxtbook.com/dawson/greenroofs/lam_2018Fall
https://www.nxtbook.com/dawson/greenroofs/lam_2018summer
https://www.nxtbook.com/dawson/greenroofs/lam_2018spring
https://www.nxtbook.com/dawson/greenroofs/lam_2017winter
https://www.nxtbook.com/dawson/greenroofs/lam_2017fall
https://www.nxtbook.com/dawson/greenroofs/lam_2017summer
https://www.nxtbook.com/dawson/greenroofs/lam_2017Spring
https://www.nxtbook.com/dawson/greenroofs/lam_2016winter
https://www.nxtbook.com/dawson/greenroofs/lam_2016fall
https://www.nxtbook.com/dawson/greenroofs/lam_2016summer
https://www.nxtbook.com/dawson/greenroofs/lam_2016spring
https://www.nxtbook.com/dawson/greenroofs/lam_2015Winter
https://www.nxtbook.com/dawson/greenroofs/lam_2015fall
https://www.nxtbook.com/dawson/greenroofs/lam_2015summer
https://www.nxtbook.com/dawson/greenroofs/lam_2015spring
https://www.nxtbook.com/dawson/greenroofs/lam_2014winter
https://www.nxtbook.com/dawson/greenroofs/lam_2014fall
https://www.nxtbook.com/dawson/greenroofs/lam_2014summer
https://www.nxtbook.com/dawson/greenroofs/lam_2014spring
https://www.nxtbook.com/dawson/greenroofs/lam_2013winter
https://www.nxtbook.com/dawson/greenroofs/lam_2013fall
https://www.nxtbook.com/dawson/greenroofs/lam_2013summer
https://www.nxtbook.com/dawson/greenroofs/lam_2013spring
https://www.nxtbook.com/dawson/greenroofs/lam_2012fall
https://www.nxtbook.com/dawson/greenroofs/lam_2012summer
https://www.nxtbook.com/dawson/greenroofs/lam_2012spring
https://www.nxtbook.com/dawson/greenroofs/lam_2012winter
https://www.nxtbook.com/dawson/greenroofs/lam_2011fall
https://www.nxtbook.com/dawson/greenroofs/lam_2011summer
https://www.nxtbook.com/dawson/greenroofs/lam_2011spring
https://www.nxtbook.com/dawson/greenroofs/lam_2011winter
https://www.nxtbook.com/dawson/greenroofs/lam_2010fall
https://www.nxtbook.com/dawson/greenroofs/lam_2010summer
https://www.nxtbook.com/dawson/greenroofs/lam_2010spring
https://www.nxtbook.com/dawson/greenroofs/lam_2010winter
https://www.nxtbook.com/dawson/greenroofs/lam_2009fall
https://www.nxtbook.com/dawson/greenroofs/lam_2009summer
https://www.nxtbook.com/dawson/greenroofs/lam_2009spring
https://www.nxtbook.com/dawson/greenroofs/lam_2009winter
https://www.nxtbook.com/dawson/greenroofs/lam_2008fall
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