Green Roofs - Living Architecture Monitor - Fall 2016 - 12


DESIGN LEADERSHIP

EDGING ENSURES YOUR
PROJECT LOOKS AS GOOD
IN YEAR 10 AS DAY 1.

PERFORMANCE AND EDGING
RESTRAINT SYSTEMS
WRITTEN BY BLAINE STAND

Photo of Nationals Park, Washington, DC, courtesy of Permaloc

Edging restraint systems are an
often overlooked aspect of green
roof design and installation that
can have important impacts on
green roof performance over
a project's life. We asked two
edging experts, Aymie Clayton of
Oly-Ola Edgings, Inc. and Daniel
Martin, LEED AP of Permaloc,
for their thoughts on what edging
does and how it can impact green
roof performance.
LIVING ARCHITECTURE MONITOR / FALL 2016 / 12

LAM: Why are edging/restraint systems important?
Aymie Clayton (AC): Edging restraint systems serve a number of
important functions on landscaped green roofs. Specially engineered
for use in green roof applications, green roof edging is used to separate plant material from hardscapes. It retains and separates green
roof planting materials, as well as stones, pavers and tiles for rooftop
walkways from hardscape and other materials. The edging creates
a clear, well-defined edge, helps to maintain a clean edge and keeps
material separated or in place. In addition, green roof edging with
an "L"-shaped profile design and slotted wall construction, allows
for effective water runoff. In addition, when edging products are
lightweight, durable and made from 100% recycled post-consumer
material, their use on a green roof can contribute to USGBC's
LEED Rating System points.
Daniel Martin (DM): Edging and restraint systems are the backbone of green roof systems. They keep all of the components lined
up and in place. Without proper edging, a green roof will quickly
deteriorate with soil erosion or components shifting and moving,
causing the structural integrity of the project to weaken. Edging
prevents the movement of ballast and other items which could wear
the membrane down or present safety hazards. Additionally, when a
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Table of Contents for the Digital Edition of Green Roofs - Living Architecture Monitor - Fall 2016

Green Roofs - Living Architecture Monitor - Fall 2016 - Cover1
Green Roofs - Living Architecture Monitor - Fall 2016 - Cover2
Green Roofs - Living Architecture Monitor - Fall 2016 - TOC
Green Roofs - Living Architecture Monitor - Fall 2016 - A
Green Roofs - Living Architecture Monitor - Fall 2016 - 1
Green Roofs - Living Architecture Monitor - Fall 2016 - 2
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Green Roofs - Living Architecture Monitor - Fall 2016 - M1
Green Roofs - Living Architecture Monitor - Fall 2016 - A1
Green Roofs - Living Architecture Monitor - Fall 2016 - A2
Green Roofs - Living Architecture Monitor - Fall 2016 - A3
Green Roofs - Living Architecture Monitor - Fall 2016 - A4
Green Roofs - Living Architecture Monitor - Fall 2016 - A5
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