Green Roofs - Living Architecture Monitor - Winter 2015 - 28


STORMWATER PERFORMANCE AND INCENTIVE PROGRAMS:
HOW THE LIVING ARCHITECTURE PERFORMANCE TOOL CAN
STREAMLINE THE PROCESS
Lessons Learned from the CitiesAlive LAPT Workshop.
BY ROHAN LILAUWALA & DAVID YOCCA

S

tormwater management is by
far the most important force
driving green roof incentive
programs, with Environmental
Protection Agency (EPA)
consent decrees mandating
Combined Sewer Overflow
(CSO) reductions in many cities,
and green roofs able to play an
important part. Cities like New
York and Washington D.C., for
example, have developed incentive programs for green roofs if
they can manage a 1" rain event.
At the recent Living Architecture Performance Tool (LAPT)

workshop held in New York
City by the Green Infrastructure
Foundation, we asked key
stakeholders from across the
living architecture spectrum an
important question, "What are
the most significant barriers to
green roof implementation?"
There were a number of answers, but a couple of them stood
out. The lack of incentives is one
major barrier; many jurisdictions
still do not incentivize green
roof development at all. In some
cases, existing incentive programs
do not reduce costs enough to

make projects economically
attractive on a voluntary basis,
considering the cost premium
for a green roof compared to a
conventional roof, especially in
markets where the technology is
not as widespread.
Another important barrier
was the complexity or ambiguity
of incentive programs with
respect to stormwater management. An issue for administrators
of these programs is that in the
absence of a standardized metric
and testing method for stormwater performance on green roofs,

they must evaluate proposals on
a case-by-case basis. Developers
and designers must also prove
the stormwater performance of
their projects, particularly if they
deviate from the norm, which can
add further costs.
These issues reduce program
uptake, are a strain on staff
resources, and make it difficult
for smaller municipalities without
the same level of expertise to
run incentive programs based on
stormwater performance. One
of the primary purposes of the
Living Architecture Performance

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learn more. Visit hunterindustries.com/greenroofs


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Table of Contents for the Digital Edition of Green Roofs - Living Architecture Monitor - Winter 2015

Green Roofs - Living Architecture Monitor - Winter 2015 - IP
Green Roofs - Living Architecture Monitor - Winter 2015 - Cover1
Green Roofs - Living Architecture Monitor - Winter 2015 - Cover2
Green Roofs - Living Architecture Monitor - Winter 2015 - IC
Green Roofs - Living Architecture Monitor - Winter 2015 - ID4
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Green Roofs - Living Architecture Monitor - Winter 2015 - I-1
Green Roofs - Living Architecture Monitor - Winter 2015 - I-2
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https://www.nxtbook.com/dawson/greenroofs/lam_2020Spring
https://www.nxtbook.com/dawson/greenroofs/lam_2019Winter
https://www.nxtbook.com/dawson/greenroofs/lam_2019Fall
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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
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https://www.nxtbook.com/dawson/greenroofs/lam_2014winter
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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
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https://www.nxtbook.com/dawson/greenroofs/lam_2011winter
https://www.nxtbook.com/dawson/greenroofs/lam_2010fall
https://www.nxtbook.com/dawson/greenroofs/lam_2010summer
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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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