Why ECO?: LEED
EP Henry's ECO line of permeable pavers
can contribute to the Leadership in Energy and Environmental Design
(LEED®) Green Building Rating System developed for the U.S.
Department of Energy. LEED is growing in use by design
professionals and private developers in response to federal, state,
and local government agency incentives and regulations.
LEED uses a point rating system to recognize sustainable site
and building design. A voluntary rating system, LEED aims to
improve both the environmental and economic performance of
buildings and sites. Developed by consensus with the participation
of a number of organizations, the rating system and certification
program is administered by the U.S. Green Building Council. A full
description and additional informational downloads can be accessed
The Benefits of LEED Certification
LEED certification, which includes a rigorous third-party
commissioning process, offers compelling proof to you, your
clients, your peers and the public at large that you've achieved
your environmental goals, and your building is performing as
designed. Getting certified allows you take advantage of a growing
number of state and local government incentives, and can help boost
press interest in your project.
The LEED rating system offers four certification levels for new
construction - Certified, Silver, Gold and Platinum - that
correspond to the number of credits accrued in five green design
categories: Sustainable Sites, Water Efficiency, Energy &
Atmosphere, Materials & Resources and Indoor Environmental
Quality. LEED standards cover new commercial construction and major
renovation projects, interiors projects and existing building
operations. Standards are under development to cover commercial
"core & shell" construction, new home construction and
Implementation of permeable interlocking concrete pavers can earn
your project points or "credits" in the LEED rating system. Credits
are awarded under several categories of use including stormwater
management, use of locally or regionally sourced materials, and use
of exterior design to reduce heat island effect.
EP Henry's ECO™ Pavers can help in earning LEED Green
Building Rating System credits through:
Sustainable Sites (SS)
- SS 6.1 Stormwater Management: Rate &
(1 point) can be earned for building sites where the existing
impervious area is greater than 50%. Hardscaping projects
constructed with EP Henry ECO® Permeable Pavers can meet this
requirement. In some urban areas with this degree of impervious
cover, pavements constructed using permeable pavers may be more
cost-effective than a separate detention facility due to space
constraints. The LEED requirement specifies that runoff rate and
quantity be reduced by at least 25%. Permeable interlocking
concrete pavements have the capacity to potentially reduce typical
stormwater runoff to zero.
- SS 6.2 Stormwater Management: Treatment
1 point) can be earned for treatment systems designed to remove
80% of the average annual post development total suspended solids
(TSS), and 40% of the average annual post development total
phosphorus (TP). The ability of hardscape pavements constructed
with permeable pavers to reduce these pollutants is typically
greater than these percentages, according to references in the
Interlocking Concrete Pavement Institute's (ICPI) manual, Permeable
Interlocking Concrete Pavements-Selection, Design, Construction,
Maintenance. The ICPI manual notes studies on infiltration trenches
(similar to permeable pavement bases) and porous pavements with
reductions in TSS as high as 95% and TP as much as 70%.
- SS 7.1 Heat Island Effect
Awards (1 point) for the use of landscape and exterior design to
reduce heat island effect. Sites can meet this requirement by
implementing light colored/high albedo materials with a reflectance
of at least 0.3 for 30% of the site's non-roof impervious surfaces,
i.e., pavements. An albedo is a unit of measurement indicating the
ratio of outbound or reflected solar radiation to inbound
radiation. In order to qualify, a paver must be light enough in
color to register an albedo of at least 0.3.
Materials & Resources (MR)
- MR 5.1 and 5.2 Regional Materials
Awards (1 to 2 points) for the use of locally or
regionally-sourced materials. In order to qualify, the site must
utilize a minimum of 20% of building materials that are
manufactured regionally within a radius of 800 km (500 miles). An
additional point is earned if 50% of the regionally manufactured
materials are extracted, harvested or recovered within this same
radius. Most, if not all EP Henry ECO™ Permeable Pavers will be
manufactured within this distance from the project site.
Water Efficiency (WE)
- WE 1.1 Water Efficient Landscaping
Awards (1 point) for reducing potable water for irrigation by 50%.
A rainwater harvesting system constructed with EP Henry's ECO
Pavers can contribute to achieving this credit.
Some Tips for Getting Your Project LEED
- Set a clear environmental target.
Before you begin the design phase of your project, decide what
level of LEED certification you are aiming for and settle on a firm
overall budget. Also consider including an optional higher
certification target - a "stretch" goal - to stimulate
- Engineer for life cycle value.
As you value-engineer your project, be sure to examine green
investments in terms of how they will affect expenses over the
entire life of the building. Before you decide to cut a line item,
look first at its relationship to other features to see if keeping
it will help you achieve money-saving synergies, as well as LEED
credits. Many energy-saving features allow for the resizing or
elimination of other equipment, or reduce total capital costs by
paying for themselves immediately or within a few months of
operation. Prior to beginning, set your goals for "life cycle"
value-engineering rather than "first cost" value-engineering.
- Hire LEED-accredited professionals.
Thousands of architects, consultants, engineers, building product
manufacturers, environmentalists and other building industry
professionals around the country have a demonstrated knowledge of
green building and the LEED rating system and process -- and can
assist you in meeting your LEED goal. These professionals can
suggest ways to earn LEED credits without extra cost, identify
means of offsetting certain expenses with savings in other areas
and spot opportunities for synergies in your project.
Source: Natural Resources Defense Council
NOTE: Project teams interested in obtaining LEED certification for
their project must first register online. Visit www.usgbc.org
for registration forms and a current fee schedule.