Green Roofs - Living Architecture Monitor - Summer 2019 - 28

BLACK ARTS

ON THE ROOF WITH...

BLACK ARTS EXPERT TIM
BARRETT RRC, CDT, GRP
As part of our 20th Anniversary of publishing the LAM we are
interviewing experts like Tim Barrett, who has been working in
the roofing industry for more than 60 years and is the recipient
of multiple awards of excellence for his green roof project work.
Two of his projects have been NRCA Gold Circle Award Winners.
LAM: Tim, you've long been an advocate for quality green roof and
waterproofing systems, how do you think the rise of the green roof
industry has impacted the roofing industry?
TB: For most of the past 170 years the roofing industry has
been very price sensitive, driven by commodity products often
produced from waste stream components.
The Green Roof (GR) movement continues to edge the
roofing industry towards the value of higher performance
products and standards. Green Roofs have also led to a growing
awareness of the differentiation between damp proofing, weatherproofing and waterproofing, all and all very good things.
LAM: What do you think the greatest challenges are in terms of
rapidly growing the green roof industry over the next 10 years? What
is holding us back?
TB: I have been a green roof advocate for more than 20 years.
Two decades ago I believed the many environmental contributions green roofs offer would have provided the industry with
at least a 30 per cent market share of low-slope urban roofs by
2020. As the ever-increasing recognition and need for sustainability was growing I continued to subscribe to the 30% vision
and have continued to be disappointed. In the most basic evaluations of sustainability, green roofs provide respectable ROI and a
big bang for the environmental buck. I think what is holding the
market back is, ironically, the failure of owners to recognize the
extensive environmental contributions GRs make and unbelievably, how many don't even know of the existence of vegetated
roofs, which brings to mind the adage "There are none so blind
as those who refuse to see". Unfortunately, even Green Roofs
for Healthy Cities can't do it alone.
LAM: If you were going to give a specifier advice on their green roof,
LIVING ARCHITECTURE MONITOR / SUMMER 2019 / 28

what would it be?
TB: My specific advice to a GR specifier would require more than
space here allows. That being said, with green roof installations,
as with most construction endeavors, sometimes conditions exist
that are beyond the bounds of accepted design principles. Macro
items are usually identifiable and addressed early on but it is
the micro elements that often plague the green roof installation
processes.
The project team members, typically the designer, waterproofing and horticulture consultants, waterproofing and
landscaping installers, manufacturer's representatives, general
contractor, building owner and most importantly the installation
foremen, must have clear communication channels and a buy-in
to the team philosophy to identify and resolve the micro installation issues that arise so they can deliver a prospering GR and
maximize the GR benefits. As the great Mies van der Rohe once
said "God lives in the details".
Secondly, I suggest specifiers consider the "Best Practices"
advice available from IIBEC/RCI "Green Roofs for Design
Professionals" coursework, the current NRCA "Vegetative
Roof Systems Manual", the FLL's "Guide for the Planning,
Execution and upkeep of Green-Roof Sites" - Release 2002,
ASTM Green Roof standards, in addition to the many GRHC
training resources available.
Thirdly and finally, specifiers should be very clear, "Best
Practices" is usually more than "acceptable practices" often
times much, much, much more.
Tim Barrett is the 4th generation president of Barrett Company,
which has provided quality roofing and waterproofing since 1928.
See www.barrettroofs.com
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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
Green Roofs - Living Architecture Monitor - Summer 2019 - 2
Green Roofs - Living Architecture Monitor - Summer 2019 - 3
Green Roofs - Living Architecture Monitor - Summer 2019 - 4
Green Roofs - Living Architecture Monitor - Summer 2019 - 5
Green Roofs - Living Architecture Monitor - Summer 2019 - 6
Green Roofs - Living Architecture Monitor - Summer 2019 - 7
Green Roofs - Living Architecture Monitor - Summer 2019 - 8
Green Roofs - Living Architecture Monitor - Summer 2019 - 9
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Green Roofs - Living Architecture Monitor - Summer 2019 - 27
Green Roofs - Living Architecture Monitor - Summer 2019 - 28
Green Roofs - Living Architecture Monitor - Summer 2019 - 29
Green Roofs - Living Architecture Monitor - Summer 2019 - 30
Green Roofs - Living Architecture Monitor - Summer 2019 - 31
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Green Roofs - Living Architecture Monitor - Summer 2019 - 34
Green Roofs - Living Architecture Monitor - Summer 2019 - 35
Green Roofs - Living Architecture Monitor - Summer 2019 - 36
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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