1. Sarnafil Green Roof Systems.

2. With the increased desire for high-performance
buildings and sustainable building products,
green roofs have become a “growing” roofing
option in North America. A “green roof,” also
known as a garden roof, vegetated roof, or
eco-roof, is simply a planted area on a flat or
sloped roof. While conventional gardens on a
rooftop usually consist of a few pots and
planters, a green roof system can cover the
whole roof area with the cultivation of plant life.
And depending on the type of green roof, you
can have everything from low growing grass and
moss to trees, shrubs, ponds and more.

3. Today’s green roofs are modern versions of cen-
turies old roofing practices. From the hanging
gardens of Babylon, to the sod roofs in Iceland
during the Viking era, adaptations of earth-
covered roofs have been around for many years.
In Europe, extensive research and testing on how
to waterproof green roofs started in the early
1970’s. This work resulted in today’s time-proven
waterproofing solutions, allowing durable and
sustainable green roofs to “grow” in popularity.
Green roofs can now be found throughout Europe,
as well as in North America and across the world.
Green roofs are becoming a common roofing
option, turning some of our green-starved cities,
into a living habitat for nature.
On the Cover:
The Posner Center, Carnegie Mellon
University, Pittsburgh, PA
Challenge:
Choosing a green roof system that
would stand up to the challenges
of this unique installation and
protect the rare and historic books
housed inside.
Sarnafil
World Class Roofing and Waterproofing

4. “Green roofs are healthy, sustainable and regenerative roof
landscapes that can help protect our environment by
diminishing developmental impacts on our communities.”
Sarnafil. The Advantages are Growing.
As you can imagine, the addition of Reducing Energy Consumption: Improved Air Quality:
Green roofs are great insulators. Green roofs filter air by absorbing and
a green roof to an otherwise unused
They can reduce peak energy demand converting carbon dioxide to oxygen.
area on a building, is beneficial for by lowering a building’s cooling costs in
the summer months and heating costs
LEED® Points:
the surrounding environment. Initial
The U.S. Green Building Council’s
in the winter months.
loss of “green” space and its inher- (USGBC) LEED program is a rating
ent natural processes like photosyn- Reducing the Urban Heat system for the design and construction
Island Effect: of high-performance, sustainable buildings.
thesis are restored; now just a few More green roofs and fewer dark colored Green roofs qualify for at least two points
stories higher. But green roofs also roofs equal a cooler city. Dark roofs retain and contribute to more under specific
heat while plants naturally cool their conditions.
have other benefits that you might
surrounding environments through
not be aware of. evapotranspiration cycles. In cities where
Sound Insulation:
Soil and plants are an effective
the ambient temperature can be up to
sound insulator.
10 degrees hotter than the surrounding
Storm-Water Retention:
areas, green roofs can help bring the Aesthetics:
During heavy rainfalls, runoff from surfaces
overall temperature down. Green roofs are visually stimulating
such as pavements and rooftops can cause
serious problems such as sewer overflow and can make great areas for recreation
Waterproofing Membrane
and water pollution. Green roofs slow and pleasure.
Protection:
down the water flow by retaining up to A green roof protects the waterproofing Increased Property Value:
75% of the rainwater, thus alleviating the membrane from damaging UV rays, Installing a green roof can increase
pressure on storm-water infrastructures. freeze-thaw cycling and repeated foot property value by providing a valuable
traffic, extending its lifespan. Some green building asset.
roofs in Europe have lasted more than
40 years without being replaced.
Chicago City Hall, Chicago, IL Phoenix Zepplin, Czech Republic

5. Project
The Pulitzer Foundation for the Arts,
St. Louis, MO
Design Architect
Tadao Ando Architect and Associates,
Osaka, Japan
Architect of Record
Christner, Inc.,
St. Louis, MO
Landscape Architect
SWT Associates,
St. Louis, MO
Green Roof Installer
Rand Rosenthal,
St. Louis, MO
Waterproofing Installer
Bartch Roofing Company, Inc.,
St. Louis, MO
Sarnafil Waterproofing System
Sarnafil Loose-laid System, G476 Membrane
Project Size
3,640 sq. ft.
Owner
Emily Rauh Pulitzer

6. Project
St. Louis Children’s Hospital,
St. Louis, MO
Architect
Cannon Design,
St. Louis, MO
Landscape Architect
Edaw Inc.,
Fort Collins, CO
Green Roof Contractor
McGrath and Associates Inc.,
St. Louis, MO
Green Roof Installer
A Waldbart and Sons Nursery,
Hazelwood, MO
Waterproofing Installer
Bi-state Roof Systems Inc.,
St. Louis, MO
Sarnafil Waterproofing System
Sarnafil Adhered and Grid System,
G476 Membrane
Project Size
8,000 sq. ft.
Owner
BJC Health Systems

7. “When you specify a Sarnafil Green Roof, you get more than watertight
security, you get peace of mind knowing you made the right choice.”
Sarnafil. Because Performance is Mandatory.
Why Choose Sarnafil? membrane is specially designed for wildflowers and moss. Extensive roofs
Performance over time is the only true sub-grade environments, compounded to are often used in areas that will not be
test of a waterproofing system’s quality. remain watertight in extreme conditions subject to regular traffic.
Sarnafil has been waterproofing green including constant dampness, ponding Intensive green roofs are generally
roofs and other landscaped areas across water, high and low alkaline conditions heavier, cost more and require more
Europe for over 35 years and in the and exposure to plant roots, fungi and maintenance. However, because the
United States for over 25 years. bacterial organisms. soil is deeper, intensive green roofs can
With close to 4 billion square feet of accommodate trees, shrubs, bushes and
roofing and waterproofing membrane
Extensive and Intensive
There are two Green Roof categories: vegetable gardens. It is not uncommon
installed worldwide, architects, specifiers to see an intensive green roof used for
and building owners know they can
Extensive and Intensive.
recreational purposes.
depend on Sarnafil for proven products Extensive green roofs are generally lower
and system performance. in weight and cost and require less plant
maintenance. With only a few inches of
When you specify a Sarnafil Green Roof,
soil, extensive green roofs typically
you get more than watertight security;
support plants that are tolerant of high
you get peace of mind knowing you
heat, drought, wind and frost like grasses,
made the right choice. The Sarnafil G476
Life Expressions Chiropractic Center, Sugarloaf, PA St. Louis Children’s Hospital, St. Louis, MO
Extensive Intensive
Growth medium 1- 6 inches Growth medium 6 or more inches
Lightweight 12-50 lbs/sf Heavier weight 50 or more lbs/sf
Low growing plants Trees, shrubs, gardens, and more
Low maintenance Higher maintenance
Low water requirements Irrigation usually necessary
Usually non-accessible Designed for human recreation
Slopes up to 30 degrees Only used on low slopes

8. “Sarnafil provides the flexibility to choose the green roof
application that best fits your building’s design criteria.”
Sarnafil. Designed to Meet Your Needs.
Sarnafil has green roof systems Sarnafil’s Grid More Sarnafil Benefits
Waterproofing System Sarnafil’s waterproofing membrane is
for use on both concrete and
For projects where the substrate is specially designed for sub-grade environ-
metal deck applications. Sarnafil contaminated or you need to go over a ments. The G476 membrane is available
provides the flexibility to choose previously failed waterproofing system, in a range of thicknesses to match your
Sarnafil has designed the grid system. application, overburden type and specific
the application that best fits your
The grid system combines all the project requirements. Highly puncture
building’s design criteria. advantages of a loose-laid membrane resistant, its bright orange color makes
installation with the added security of it easy to identify and inspect to maintain
adhered membrane grid strips, or water- high levels of quality assurance and
Sarnafil’s Adhered
stops, for exceptional performance. It is control during installation.
Waterproofing System
especially effective in retrofit applications
When your building demands absolute Root Resistance
where existing waterproofing membranes
system integrity with maximum Many waterproofing membranes are not
are difficult or costly to remove.
watertight security, Sarnafil’s adhered resistant to root penetration. They fail,
membrane is the installation for you. Advantages: often in five years or less, due to root
Sarnafil’s adhered waterproofing › The adhered grid strips act as a sub- infiltration into the field seams and flash-
membrane is bonded directly to the membrane waterstop minimizing any water ings. Sarnafil membranes are inherently
substrate providing the best protection migration below the waterproofing membrane root and algae resistant and require no
against water migration. If a leak does › Optional monitoring drains can be installed additional barriers to be added to the
occur, water migration will be limited. in each grid area as a control and alerting system. Sarnafil membranes have passed
This system is ideal for buildings that mechanism, and to allow the repair of the most stringent European tests for
protect sensitive or expensive equipment minor damage without overburden removal. root resistance including both the German
and inventory. The monitoring drains also provide a means FLL and the Swiss SIA 280 standards.
to test each section before and after the
The FLL standard test exposes the
Advantages: installation of the overburden
waterproofing membrane to 4 years of
› Limits water migration › The systems can be installed economically
accelerated root growth.
over existing waterproofing with minimal
› Reduces the risk of expensive removal deck preparation and removal
and replacement of overburden Heat Welded Seams and Flashings
Faulty seams and details are a common
* Note: For green roof applications on a metal deck, source of leaks in green roofs. Some
Sarnafil’s G476 membrane is loosely laid over rigid
insulation or hardboard. waterproofing membranes use sealants,
adhesives or tapes to secure the seams,
but because Sarnafil’s membrane is
thermoplastic, seams and flashings
are welded together using Sarnafil’s
automatic hot-air welder, the Sarnamatic.
When welded together, the sheets
become one monolithic layer of material
impervious to moisture infiltration.

9. Oaklyn Branch Library — Evansville, IN
Sarnafil’s unique Milestone Management
process is the key to a successful
installation. From specification assistance
Sarnafil Green Roof over Metal Deck to installation, our "hands on approach"
is designed to make any project an
Vegetation easier task for you. Here’s how we help
make the process go smoothly:
Growth Medium
Proven Materials
A high quality membrane is the key to any
Drainage Composite
successful roofing or waterproofing project
Sarnafil Membrane that demands absolute system integrity.
With that in mind, Sarnafil’s manufacturing
Separation Layer
process uses only the highest quality
Insulation materials to produce a monolithic, non-
laminated membrane that offers excellent
Thermal Barrier (as required) weatherablility and dimensional stability.
Expert Assistance
Metal Deck
Our skilled technical experts make Sarnafil
stand apart from other manufacturers.
We’re involved at each major milestone –
offering design assistance to architects
and specifiers if needed, reviewing Notice
of Award documentation, and training
Sarnafil Green Roof over Concrete Deck authorized applicators in the classroom
and at the job site.
Skillful Workmanship
Vegetation Unlike most other roofing and water-
proofing manufacturers, Sarnafil does
Growth Medium
not sell through distributors. Instead, we
sell directly to a select group of trained,
Filter Fabric authorized applicators – only the best are
invited to join our team. Maintaining strict
Insulation control over the installation process means
that Sarnafil quality is carried through from
start to finish.
Drainage Composite
Sarnafil Membrane
Concrete Deck
Warranty Options
Sarnafil offers several types of warranties, including 5, 10 and 15 year durations:
› Waterproofing Membrane only
› Waterproofing Labor and Material (Standard)
› Full System*
Sarnafil
* Sarnafil offers a full system warranty including waterproofing and green roof through our Green Roof Management Program.

10. Quick Reference Guide
Green roof systems provide… Sarnafil Green Roof Systems provide…
Storm Water Retention: Green roofs greatly lessen erosion and storm water burden Proven Performance
on sewer systems • An industry veteran, Sarnafil has produced almost 4 billion sq. ft. of membrane since 1964
• The same basic membrane formulation that has protected buildings for more than 40 years
Reduction in Energy Consumption: Green roofs can reduce peak energy demand by
• Material that consistently ranks as the highest quality thermoplastic membrane in
lowering a building’s heating and cooling costs
independent testing
Reduction in the Urban Heat Island Effect: Dark roofs hold onto the heat while plants
naturally cool their surrounding environments Watertight Integrity
• Permanent watertight flashings and details with hot-air welded seams
Waterproofing Membrane Protection: A green roof protects the waterproofing • The G476 membrane is designed for sub-grade environments such as constant dampness,
membrane from damaging UV rays and freeze-thaw cycling, extending its lifespan ponding water, high and low alkaline conditions, exposure to plant roots, fungi and bacter-
ial organisms
Improved Air Quality: Green roofs filter air and produce oxygen
Milestone Management
LEED Points: Green roofs qualify for at least two points and contribute to more under • Proven Materials – Sarnafil’s manufacturing process uses only the highest quality
specific conditions materials to produce a monolithic, non-laminated membrane that offers excellent
waterproofing and dimensional stability
Sound Insulation: Soil and plants can be a great sound insulator
• Expert Assistance – We’re involved at each major milestone, offering design
Aesthetics: Green roofs are visually stimulating and can make great areas for recreation assistance to architects and specifiers if needed
and pleasure
• Skillful Workmanship – We sell directly to a select group of trained, authorized
Increased Property Value: Installing a green roof can increase property value by applicators – only the best are invited to join our team
providing a valuable building asset.
About Sarnafil
Sarnafil is an international manufacturer
of high-tech plastic membranes for a
wide range of applications including
roofing, waterproofing, and civil
engineering. Since 1964, Sarnafil has
manufactured close to 4 billion square
feet of thermoplastic roofing and water-
Sarnafil Inc.
proofing membrane in Switzerland,
100 Dan Road
China and the U.S. Sarnafil roofing and
Canton, MA 02021
waterproofing systems protect some Telephone 1-800-451-2504
of the world’s most valuable structures Telefax 781-828-5365
and treasures, including schools and E-Mail webmaster@sarnafilus.com
universities, libraries, museums, Internet http://www.sarnafilus.com
hospitals, commercial and government
buildings, retail buildings and Olympic
stadiums. For more information Sarnafil Ltd.
about Sarnafil in the U.S., visit 1260 Lakeshore Road East
www.sarnafilus.com Mississauga, Ontario L5E 3B8 Canada
Telephone 1-800-268-0479
Telefax 905-271-6608
Internet http://www.sarnafil.ca
ENERGY STAR
1157/5M/0106
Sarnafil – World Class Roofing and Waterproofing