Green Roofs - Living Architecture Monitor - Summer 2019 - 26

POLICY

LIVING ARCHITECTURE POLICY LIBRARY:

GREEN ROOF AND WALL POLICIES IN
DEVENS REGIONAL ENTERPRISE ZONE
BY MAYA STERN AND PETER LOWITT

Devens, MA, a former army base, has been redeveloped using
sustainability principles for over a quarter century. It has a
population of approximately 2000 people, and a labor force of over
5500 people. The Devens Regional Enterprise Zone is four square
miles with approximately 6 million square feet of rooftops.

I

n an effort to realize the sustainability vision for Devens,
mitigate the long-term impacts of development and conserve
the natural environment, the Devens Enterprise Commission
(DEC) developed Green Infrastructure Guidelines for new
projects.
The DEC Rules and Regulations promote, or require the
incorporation of green infrastructure into development projects
in order to increase green space, to manage stormwater runoff,
improve air quality, and mitigate climate change. In 2011, the
Vegetated Roof and Wall Policy was implemented to dictate
the standards for green roofs and walls that are required to be
developed as a part of the Design Standards (974 CMR 3.00
Site Plan 3.04) and Greenhouse Gas Mitigation Regulations
(974 CMR 4.00 Industrial Performance Standards and General
Regulations 4.11).

POLICY DESCRIPTION

The Vegetated Roof and Wall Policy provides a checklist of
mandatory provisions that must be met in the design and
construction of a green roof or wall, including the requirement
that a Green Roof Professional (GRP) be a member of the team.
This policy informs the Design Standards for vegetated rooftops
and walls in the Viewshed Overlay District and the vegetated
roofs required for development projects that require an air quality permit. Green roofs shall be a minimum of 4" of growing
media, and utilize native and non-invasive species that cover 40
LIVING ARCHITECTURE MONITOR / SUMMER 2019 / 26

per cent of the roof space with 80 per cent plant coverage after
3 years. The Museum of the New England Landscape is located
across Route 2 from Devens. Projects visible from the Museum
are within the Viewshed Overlay District and must screen their
buildings to the extent possible by using green roofs and walls.
The DEC's Design Standards for buildings in the Viewshed
Overlay District require vegetated roofs and vegetated walls.
The green wall coverage required has to cover the entire wall
that is facing the viewshed with the exception of ventilation
systems.
The Greenhouse Gas Mitigation Regulations require that
any building that requires an air quality permit for development
must install a vegetated roof. These regulations mitigate the
impacts of development on air quality because the vegetated
roof helps decrease particulate matter and other pollutants by
filtering the air.
Since the DEC adopted these regulations, 3000 square feet
of green walls and 5000 square feet of green roofs have been
installed on two new development projects.
Maya Stern is a program assistant at GRHC and Peter Lowitt, Director, FAICP, Devens Enterprise Commission and past chair, GRHC. For
more information visit http://devensec.com/rules-regs/decregs304.html
specifically 974CMR3.04(8)(i)5. Vegetated Rooftops and Walls. For details
on the green roof requirements see http://devensec.com/development/
DEC_vegetated%20_Roof_policy_revised_January2012.pdf
LIVINGARCHITECTUREMONITOR.COM


http://www.devensec.com/rules-regs/decregs304.html http://www.devensec.com/development/DEC_vegetated%20_Roof_policy_revised_January2012.pdf http://www.LIVINGARCHITECTUREMONITOR.COM

Green Roofs - Living Architecture Monitor - Summer 2019

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

Table of Contents
Green Roofs - Living Architecture Monitor - Summer 2019 - IP
Green Roofs - Living Architecture Monitor - Summer 2019 - Cover
Green Roofs - Living Architecture Monitor - Summer 2019 - Cover 2
Green Roofs - Living Architecture Monitor - Summer 2019 - Table of Contents
Green Roofs - Living Architecture Monitor - Summer 2019 - A1
Green Roofs - Living Architecture Monitor - Summer 2019 - 1
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Green Roofs - Living Architecture Monitor - Summer 2019 - M1
Green Roofs - Living Architecture Monitor - Summer 2019 - A2
Green Roofs - Living Architecture Monitor - Summer 2019 - A3
Green Roofs - Living Architecture Monitor - Summer 2019 - A4
Green Roofs - Living Architecture Monitor - Summer 2019 - A5
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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