Sump Pumps Under the Stage Fixing a Broken

Spring 2008
Sump Pumps Under the Stage
Fixing a Broken Foundation
Built Up Roofing
$4.95
Inside This Issue
Features
10
Publisher
Fixing a Broken Foundation
By Melissa Morton
Many waterproofers expand into the foundation repair
business. From minor cracks to major underpinning
work, here’s how to determine the severity of the problem,
and the products and techniques used for repair.
16
10
By Dan Calabrese
Considered the standard treatment for flat roofs, built up
roofing is one of the oldest, most reliable, and overlooked
methods.
6
Comment:
Diversification
8
Waterproof News
26
Engineers’ Corner: Epoxy vs.
Polyurethane Crack Repair
28
On the Market
30
Coming Up...
16
Circulation Manager
Monica Hall
Art Director
Webmaster
Brad Moulton
20
On the Cover:
The world-class Green
Music Center demanded
perfect acoustics, which
required innovative
design work since the
basement sits 10 feet
below the water table.
See story on p. 16 to
see how it was done.
Contributors
Dan Calabrese
Mei-Lu McGonigle
Melissa Morton
Jay Schmid
Susan Kashack
Photo Courtesy Susan Kashack/Sonoma State University.
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with your comments at editor@waterproofmag.com, or write to us at:
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4 WATERPROOF!
Craig Shorts
Clark Ricks
Built-Up Roofing: The Basics
Departments
Advertising Manager
Editorial Director
Sump Pumps Under the Stage
By Clark Ricks
A significant portion of the new concert hall in Sonoma,
Calif. sits below the water table. In order to keep the
building dry—and the concert hall quiet—the building
uses an innovative dewatering system.
20
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Today’s business environment is difficult enough without
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Business practices that lead to long-term relationships with mutual benefits
HouseGuard™ continues to be a trusted name in basement waterproofing
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Editor’s Note
A
s the housing slump continues to worsen with no end in
sight, small business owners have to become creative in
marketing and managing their enterprises.
Waterproofing contractors are no different. Whether
you specialize in roofs, parking decks, or vertical below-grade
surfaces, you’ve probably evaluated the different options
available to differentiate your business from the competition.
This issue will hopefully give you a few ideas.
In the cover feature, Dan Calabrese addresses one tactic:
Get back to the basics and do it better than anyone else in your
market. While the story relates specifically to commercial
roofing, the principles involved—quality workmanship, quality
materials, and staying abreast of emerging technologies—are
key to success in any facet of waterproofing.
Another proven method for staying afloat in a difficult
market is to diversify into new markets or acquire new
capabilities. In “Fixing a Broken Foundation,” (p. 10) Melissa
Morton covers one obvious opportunity for residential
waterproofers. Remedial waterproofing nearly always involves
crack repair and sometimes structural underpinning. If your
business already includes a fair amount of remedial work, this
may be a good option. Morton’s story is limited to fixing poured
6 WATERPROOF!
concrete foundations; the next issue will
discuss options for fixing cinder block
(CMU) walls.
In the Engineer’s Corner, Jay Schmid
explains the relative strengths of epoxy
vs. polyurethane crack repair materials.
A final method of diversification is
to expand the types of project you work
on. Lawson Roofing, a waterproofer
by Clark Ricks
in Northern California, not only did the roof work on a highprofile concert hall (p.16) but secured the contract for installing
the below-grade waterproofing and drainage membranes as
well.
In short, tough market conditions force everyone to think
outside the box. Businesses that can diversify or take advantage
of other opportunities that arise during slow times will find
themselves even further ahead when better market conditions
prevail.
Hopefully, this issue—and every issue—helps make your
business more successful.

Waterproof! News
CertainTeed Reaches Deal
with Armtec
CertainTeed, maker of the
popular Form-A-Drain footing drain,
has reached an agreement with Armtec
of Canada to be the exclusive U.S supplier
of their Platon air gap membrane.
Used as both a flooring
underlayment and foundation waterproofing, Platon can be used in a variety
of ways to ensure below-grade structures
stay dry.
“We’re always looking to bring
on new products that will complement
our full line of construction products,”
says Steve Gross, Director of Marketing
for CertainTeed’s Foundations business.
“We reached an agreement late last year
to represent the U.S. exclusively. We’re
always looking for ways to add value.”
Gross also said that Platon works
extremely well with their Form-ADrain system, and expects to achieve
customer-focused synergies with the
new partnership.
Armtec will continue to
manufacture and market Platon in
Canada and other countries.
SWRI Elects New Board
In March, the Sealant, Waterproofing
& Restoration Institute (SWRI)
announced a new board of directors.
The new members were elected at the
institute’s 2008 Winter Technical Meeting
in Cancun, Mexico.
Eric Johnson, owner of SprayO-Bond Company, in Milwaukee, Wisc.,
is the new president. According to
8 WATERPROOF!
information released to the press, Johnson
will focus on developing and growing
alliances with other organizations,
updating and creating publications to
educate the industry and emphasize the
importance of committee involvement.
Serving with Johnson are Frank
Halsey of Mid-Continental Restoration
Company, Inc, elected as president-elect
and Jed Daniel of Seager Waterproofing,
Inc. in Greensboro, NC, as Secretary/
Treasurer.
Past president Bill Leonhard
will remain on the board as well, with
10 others, five
of whom were
elected at
the
last
meeting. A complete list of the 2008-2009
SWR Institute Board of Directors, visit
the institute website www.swri-online.
org.
Waterproof in the Desert
Once used exclusively in areas with
heavy rainfall, waterproofing companies
are expanding into areas previously
thought unprofitable.
Guardian Sealing, Inc. is one of
these. Headquartered in Phoenix, Ariz.,
it is the first company in the state to focus
exclusively on waterproofing.
In Arizona, asphalt doesn’t last
more than a few years, leaving home
builders open to costly lawsuits when
mold, termites or flooding occur.
Instead, the company uses a
thermoplastic coating for a waterproofing
barrier, covered with a dimple membrane
and footing drain to relieve hydrostatic
pressure.
Says one satisfied customer,
“The cost of Guardian Sealing’s system
is similar to applying modified asphalt,
but it saves money in the long run
because it’s virtually problem free.”
Kyle Kik, who co-owns the
company, says its been a good first
summer. “We have the confidence to
take on any foundation waterproofing
challenge in Arizona,” he says.
SWRI Validation Program
Expands
The Sealant, Waterproofing, &
Restoration Institute (SWRI) oversees
a standardized, third-party verification
system for waterproofing products.
In the past months, several products
have passed the third-party testing and
validation process.
“Manufacturer’s
product
performances claims can, at times,
be either confusing, incomplete, or
misleading,” explains the SWRI website.
“The SWR Institute Validation Program
helps to alleviate the confusion.”
Neogard Deck Coating:
In
February, Neogard, a division of JonesBlair, validated their series of vehicular
and pedestrian deck coating systems,
with SWRI’s Deck Coating Validation
Program. The systems consist of a
base coat and top coat, and were tested
for elasticity, abrasion resistance, and
other factors in accordance with ASTM
standards.
BASF Deck Coatings: BASF
Building Systems, a major supplier
of chemicals and building products,
validated their Conipur deck coating
system, Conipur295 Topcoat & 265Z
Basecoat; and Conipur 275 Topcoat &
265Z Basecoat.
Bostik Liquid Sealant: In March,
Bostik, Inc. validated their Chem-Calk
2020 Advanced Urethane Sealant through
the SWRI program. Tested in the “Liquid
Sealants” category, the product passed the
ASTM tests for adhesion and cohesion on
primed mortar, unprimed wood and steel
substrates, and for indentation hardness.
Momentive
Performance
Sealants: Momentive
Performance Materials, Inc., a
manufacturer of sealant and
waterproofing products, recently
validated three liquid sealants
in SWRI’s program UltraGlaze
SSG4400 Two-Part Structural
Sealant, UltraGlaze SSG4000AC
Structural Glazing Sealant and UltraGlaze
SSG4000 Structural Glazing Sealant all
passed the required ASTM tests when
used on unprimed glass and primed
aluminum.
Manufacturers that wish to have
their wall coating, deck coating, liquid
sealant, or pre-cured sealant products
validated, or for more information on
any validated product, visit the SWRI
website at www.swrionline.org, or call
816.472.7974.
Midwest Flooding
Severe flooding in the Midwest
has soaked basements, saturated soils,
and inundated waterproofing contractors
Emergency Management Agency.
Unlike last summer’s floods, or
the “great flood” of 1993, this appears to
be a relatively brief incident, and water
levels were predicted to fall
quickly after the storm.
Waterproofers in the
affected regions, however,
report that the backlog of calls
will keep them busy for quite
some time.

Severe flooding in the Midwest
has soaked basements,
saturated soils, and innundated
waterproofing contractors
in the area. The hardest hit areas include
southwestern Illinois, eastern Missouri,
and most of Arkansas. Sections of the
Ohio River were also affected.
The floods were caused by
torrential early spring rainfall—in excess
of ten inches in many areas—combined
with melting from the unusually heavy
snowpack.
“For some of these places,
this is their 500-year flood,” says Patti
Thompson, a spokeswoman for the Illinois
Correction:
In the article titled: Green Rooftops
(Winter 2008), Carlisle Coatings &
Waterproofing’s MiraDrain 9800 series
was incorrectly classified as a 3/8-inch
EPS drainboard with insulating value.
It is, in fact, a high-impact polystyrene
(HIP) drainboard with no significant
insulating value.
Spring 2008 9
Resistance or push pier systems use the weight of the building to
push the piles into the ground until they reach bedrock.
Fixing Failing
Poured Wall Foundations
By Melissa Morton
Photo Courtesy of Grip-Tite Manufacturing
W
hether they break from soil settling, roots,
hydrostatic pressure, or plain old deterioration,
concrete foundations don’t last forever.
They will crack and make a way for water to get into the
home, which is why waterproofing is essential. If you think
about it, the rain accompanied by a broken foundation actually
gives remedial waterproofers a job. More importantly, it opens
up a whole sector of the industry that many waterproofers
haven’t even touched—foundation repair work.
Andre Lacroix, president of StablWall Wall Bracing
in Macedonia, Ohio, says he introduces many “strictly
waterproofing” contractors to foundation repair work and
they all say the same thing: “Wow, there is so much work that I
have been passing up,” “People just need to take off the blinders
and open their eyes to the possibilities,” Lacroix explains. “Not
only can repair work make you more money, but it can make
you more marketable.” You will be able to offer more to your
10 WATERPROOF!
customers to help them solve their problems.
Jim Hise of Expert Basement Repair in Cleveland, Ohio,
agrees. “You have to expand your knowledge base to be a wellrounded person in this business,” he says. “Waterproofers who
only waterproof need to consider the structural repair end of
this industry.”
Identification
Identifying the problem can be the hardest step in the process
of fixing a broken foundation. This takes practice, experience,
and a dose of humility. “It is important in this industry to know
when you don’t know,” Hise says. “Reach out to professionals in
different fields—geotechnical, structural, mechanical—because
you may just not understand the problem.”
Hise explains that it’s better to consult with an engineer
and do it right, than to install a system that doesn’t fix the real
problem.
Waterproofing misdiagnosis usually happens because
contractors don’t see the whole picture or understand the whole
picture. Usually, a foundation has to be inspected inside and out
to determine the reason for the water in the basement. If the
contractor doesn’t go outside, he may miss the grade sloping
toward the house instead of away from it, or the puddle where
the gutter dumps water when it rains.
The same rule applies when inspecting structural problems
in a house. A crack in a poured wall doesn’t reveal too much about
the real problems with the foundation. Hise suggests looking for
vertical cracks on the adjacent walls. This could mean there is a
settlement problem instead of hydrostatic pressure.
“You have to be a detective and look at all walls of the
basement to get the whole picture,” says Hise. People usually use
their basements as storage covering the walls with their stuff.
“Be willing to move things to find a crack that will tell you
more of the story,” Hise suggests. “Water problems and cracking
could really be the beginning of serious structural problems.”
Crack Control
The most typical problem in foundation walls is cracks.
Concrete can’t help but crack. It naturally expands and shrinks
with the changes in the elements. The soil around the wall is
going through the same expanding and shrinking process with
the weather—shrinking in droughts and expanding in floods.
Tree roots, hydrostatic pressure, erosion, and settlement all
cause cracks in foundation walls.
Because cracks are inevitable, concrete contractors place
control joints in the walls and slabs. When the concrete does
crack, it will be in a nice straight line, but control joints can leak.
To repair cracks, controlled or not, the most common
method involves injecting the crack with epoxy or a
polyurethane-based material.
Photos Courtesy of Fortress Stabilization
12 WATERPROOF!
Epoxy mechanically bonds one side of the crack to the other,
and actually adds strength to the wall. Because this method is
designed to fix structural cracks, contractors often use carbon
fiber technology with epoxy injection systems to enhance the
strength of the wall.
Carbon fiber staples are one common material; a two-inch
band of carbon fiber placed perpendicular to the crack at twofoot intervals. Carbon fiber is also available in sheets, with the
thickness and size varying by manufacturer.
Polyurethane-based injection systems are not quite as
strong as epoxy, but they continue to expand with the crack,
making it a perfect system to stop leaks. Actually, over 95%
of residential basement cracks are non-structural, with water
seepage as the only problem. In these cases, while epoxy will
work extremely well, all that’s really needed is a polyurethane
system to fill the crack.
Choosing a crack injection system, however, is not a simple
choice between epoxy and polyurethane. More than 500 different
basement crack repair products are on the market, which can be
a little overwhelming.
“It’s like being fed with a fire hose,” says Dan Jaggers of CL
Support Services, LLC, who just attended a seminar on crack
injection systems. There are products specifically designed
Photos Courtesy of Grip-Tite Manufacturing
Photos Courtesy of Fortress Stabilization
The contractor preps the area around the crack by sanding off any rough spots and paint. The
carbon fiber staples are installed every two feet to reinforce the crack. This is often used with
epoxy crack injection systems to prevent the mechanical bond from breaking.
for leak repair, hairline cracks, gushing
water, filling voids in concrete walls, and
other specialized uses.
Fixing Bowed Walls
Poured walls are not as prone to
bowing as masonry block walls but it
does occur. Typically, a poured wall will
crack before it bows, but it can happen.
If the bow is only at the top of the
wall, carbon fiber “kickers” are a useful
remedy. Often times, they are attached
to the framework of the house so the
foundation is depending on the house
instead of the house depending on the
foundation.
Beams
Steel beam systems are also often
used. This method involves drilling a
hole into the basement slab then placing
the steel I-beam on the footer. The
contractor then pours fresh concrete
around the beam to anchor the bottom
end, and braces the top of the beam
against the floor joists.
Anchors
For serious bows in the middle of the
wall, wall anchors are the most effective.
Two basic types exist. The first is
installed outside of the wall and driven
into the earth at an angle of 12 to 20
degrees. The anchors will force the bow
out of the wall.
The second anchor system resembles
the rock bolts used in mining and for
retaining walls. A steel rod is inserted
through the wall to the outside soil
and anchored into place. Then, a steel
wall plate secures the rod to the inside
basement wall. This counteracts the
hydrostatic pressure and fights the bow.
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Underpinning
If the foundation has serious
structural problems, underpinning is the
best solution. Most repair contractors
offer some sort of underpinning as a key
part of their business.
Underpinning, also called piling
or piering, is the process of installing a
system of steel, concrete or wood anchors
to support a structure on unstable soil.
There are four major systems
commonly used among residential repair
contractors for poured wall foundations
with basements or crawlspaces:
Drilled Piers: In this system,
contractors drill a deep hole, place
reinforcing steel then fill the hole with
concrete. The new concrete piers are
structurally connected to the home or
foundation to prevent further settling.
Steel Pipe Piling (Push Pier): This
method uses the weight of the structure
to push the piers into the ground until
they hit a bearing surface—either a loadbearing level of the soil or bedrock. The
pier is then capped off and permanently
attached to the bottom of the foundation.
The advantage of this method is that the
contractor doesn’t need to know how
deep to push the piers. When the weight
of the house is insufficient to drive the
piers deeper, that’s evident they can
support the home. These types of piers
are typically used for heavier structures
but are also perfect for single story
residential homes.
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Spring 2008 13
Business Considerations
Photos Courtesy Hargrave Custom Foundation Repair
“Waterproofers are like farmers,” says Mike Trotter,
president of The Trotter Company in Doraville, Ga. “The more
the rain, the better the crop.”
However, structural repair contractors can be busy fixing
foundations regardless of rainfall. In fact, it’s often in the dry
season when most foundations crack in the first place.
This article is just an introduction to foundation repair;
there is a lot to learn but also a lot of money to be made. Do
the research, go to tradeshows, join contractor associations,
and talk with manufacturers. Every manufacturer’s system is
slightly different, and they may have a technology not discussed
in this article.
There is another side of to remedial waterproofing far
beyond filling cracks and installing sump pumps. Adding
structural repair services to your waterproofing business can
lift your company to the next level, keeping you busy rain
or shine.

Steel Helical Piling: Helical piers are typically used to
support a structure and not to lift it. These types of piers are
“turned” into the ground much like a corkscrew. Each pier
has one or more “flights,” or wings, which pulls the pier into
the soil. These flights keep the pile in place after it is installed.
The advantage of helical piers is that you can use them on very
light structures, like a porch. However, to install a helical pier
properly, a soils test should be performed by a geotechnical
engineer to determine how far they must be driven to support
the structure.
Segmented Concrete Piling: The piles consist of precast
concrete segments, usually manufactured cylinders, which are
installed one by one on top of one another, pressed into the
ground by hydraulically jacking against the underside of the
existing structure. Like, push piers, the weight of the structure is
used to create the reactive force that allows the pile segments to
be driven into the soil.
The segmented piles can be interconnected by steel bar(s),
threaded rod, or a cable that runs through the center of each
of the concrete segments. Other systems use epoxy or another
adhesive to bond the segments together.
These four main systems can all be installed outside or
inside the basement. If the system and equipment will fit
inside the basement, it usually will save a day or two of labor
to go through the basement floor instead of installing the
system outside. Exterior piering typically means digging an
eight- or nine-foot hole, cut back to follow OSHA’s regulations
for trench work.
14 WATERPROOF!
Melissa Morton, freelance writer and editor, has written for
the industry since 2004. She is currently the newsletter editor for
the National Association of Waterproofing and Structural Repair
Contractors (NAWSRC), www.nawsrc.org.
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A significant portion of concert hall at Sonoma State University sits
below grade and below the water table. An innovative dewatering
system had to be developed to keep the building dry. Here, Christopher
Dinno explains foundation construction to a group of visitors.
SUMP PUMPS
UNDER THE STAGE
T
he Green Music Center, a new 1,400-seat concert hall
located in the heart of Northern California’s wine
country, is a world-class facility with remarkable
acoustics, beautiful architecture, and scenic views. One of the
buildings most remarkable and important features, however,
will go completely unnoticed by the tens of thousands of guests
who will visit the facility.
Located at Sonoma State University, a significant portion
of concert hall sits below grade. With a water table just five
feet below the surface, an innovative dewatering system had
to be developed to keep the
building dry—and the concert
hall quiet.
The idea of building a
world-class concert hall in
Sonoma County was first
proposed in 2000, but funding
and other concerns delayed
approval until 2005, when
16 WATERPROOF!
All Photos Courtesy Susan Kashack/Sonoma State University
the project was expanded to include a separate recital hall and
academic buildings. Rudolph & Sletten, a general contractor
familiar with building on the Sonoma State campus, got the
nod.
Temporary Dewatering System
Before excavation could begin, a temporary dewatering
system had to be installed. A series of 14 wells were drilled 20
to 30 feet deep and connected to water disposal lines. Because
the California Water Quality Control Board prohibits dumping
water into any natural creek
or drainage, the lines were
routed into the university’s
stormwater drains. CWQCB
inspectors made daily jobsite
visits to ensure compliance
until the permanent system
became operational.
“When we first started
those pumps, they were pumping 400,000 or 450,000 gallons
of water per day,” says Grant Ricks, project manager for the
job. “It stabilized at around 320,000 gallons a day—around 40
gallons per minute—but that was too much for the university’s
wastewater system.” It would be too costly—and wasteful—to
dispose of that much water every day for the foreseeable future.
Bentonite Slurry Wall
The project team quickly developed a solution: a bentonite
curtain around the perimeter of the building. Bentonite is a
naturally-occurring expanding clay. When mixed with water,
the clay expands to form a nearly watertight barrier.
Using an excavator with a specialized bucket, contractors
dug a trench around the entire footprint, 2 ½ feet wide and 30
feet deep. A water/bentonite slurry was pumped into the trench
to keep the sides from collapsing.
“They pumped the water/bentonite mixture into the trench
right after they initially started excavating,” says Christopher
Dinno, senior director for capitol planning at the university.
“They continued to excavate through the slurry, the water/
bentonite mixture, until they get to the desired depth.”
The slurry was mixed with the excavated soil and then placed
back into the trench to form the watertight curtain. In a video
of the operation, available on our website, www.waterproofmag.
com, shows how this took place.
“We pull out that material and mix it on the side of the
trench,” he says. “We roll it with the track hoe to break up the
material and get a nice mix, around a five-inch slump—and
place in back in the trench using the bulldozer. The material
slides in at about a 3:1 slope and pushes the water/bentonite
mixture along. When the liquid gets too close to the surface,
they extend the trench.”
The trenching operation was finished in about two weeks,
and the bentonite performed flawlessly. When completed, the
dewatering system that formerly processed 320,000 gallons a
day was now handling only 40,000 gallons per day, most of it
seeping up from below.
Foundation Work
While the slurry wall was being installed, Rudoph & Sletton
continued the foundation work. The basement was excavated,
and because of poor/expansive soils at the site, steel-reinforced
concrete piles were driven deep into the ground for support.
Native soil below the building was removed and replaced with
several feet of pervious fill and a network of perforated drain
pipe, part of the permanent dewatering system. Just before the
slab was poured, workers installed a 10-mil underslab barrier
from Stego to minimize moisture penetration.
Even with a complex dewatering system, designers
recognized basement waterproofing would be critical, so they
To reduce the load on the dewatering system, a bentonite slurry wall was installed around the building. A large track
hoe dug a trench (top right) 2 feet wide and 25 feet deep. Bentonite arrived in large bags and was mixed with water
and native soils to create an impermeable wall. See the video at www.waterproofmag.com
Spring 2008 17
specified W.R. Grace for the waterproofing membrane, sealants
and drain panel. Lawson Roofing did the install.
“The job was pretty straightforward,” reports Rich Lawson,
owner of the company. “We did it in the early spring, so it was
pretty wet. The bottom of the trench was 12 or 15 feet below
“When we first started those
pumps, they were pumping
400,000 or 450,000 gallons of
water per day.”
grade, and it was really muddy. That made it difficult for some
of the guys, but the actual installation was quite simple.”
Grace’s Bituthene System 4000, a high-quality peel-and-
Temporary pumps removed up to 400,000 gallons of
water a day to allow basement excavation to proceed.
18 WATERPROOF!
stick membrane was applied to the exterior basement walls;
Lawson sealed penetrations with their two-component liquid
membrane sealant.
The sump pit, on the other hand, required the waterproofing
to be installed before the concrete. Grace’s Preprufe 300R, a
product developed specifically for vertical blindside applications,
fit the bill. Preprufe forms a mechanical bond with the concrete
that ensures delamination won’t occur.
Permanent Dewatering System
The sump pit is located in the concert hall basement, as far
from the stage as possible, and is large enough to accommodate
two sump pumps. Planners designed a redundant system so that
even when one pump is offline for repairs, the other will keep
the building dry. The Paco submersible lift pumps are wired so
that if the water flows faster than a single pump can handle, the
rising water in the sump will activate the second pump.
When dewatering system was shut down overnight,
the water table returned to its normal level, 5 feet
below grade
The Ultimate Pre-Applied
Waterproofing System for
Below Grade Construction
Industry Leading
Self-Adhesive Membrane
Waterproofing System
Technology-Proven
Fluid-Applied
Waterproofing System
• Green and Damp concrete
tolerance accelerates
construction schedules
• Preformed details ensure
waterproofing integrity
and speed of installation
• Low VOC Primer systems
to meet newer state
requirements
• Low VOC,100% solids
spray application cuts
time and costs
• Durability and chemical
resistance suitable for
contaminated site projects
• Bituthene® Deck System
ideal for IRMA and
Green Roof designs
• Wide network of Grace
trained applicators
Whether your challenge involves water management, energy
efficiency or structure durability, Grace Construction Products’
technical expertise and people allow us to deliver products and
services that meet the specific requirements of each project.
866-333-3SBM (3726)
www.graceconstruction.com
G
• Advanced Bond TechnologyTM
• Over 40 years proven
enables aggressive adhesion to
performance in vertical and
concrete preventing water migration
plaza deck applications
The system was installed in late 2007, and the temporary
dewatering wells turned off. After 6 weeks of testing, the
temporary wells were shut down permanently.
FAST FACTS
• Project Name: Donald and Maureen Green Music Center
• Location: Sonoma State University, California
Soundproofing
The challenge for the designers, and for the acoustical
engineer at Kirkegaard, was how to ensure that the noise and
vibrations from the constantly running sump pumps and other
mechanical equipment doesn’t disturb the sensitive acoustics in
the concert hall.
With an overall cost of 110 million dollars, the university
and its backers expect a world-class facility with the very
finest sound quality. Modeled after Tanglewood, a performing
arts venue in Massachusetts, the 1,400-seat hall features two
balconies, behind-stage seating, and is expected to host some of
the world’s finest musicians.
To isolate the concert hall from the sounds and vibrations
of the mechanical equipment, the floor of the hall is actually
a steel pan deck suspended four feet above the basement slab.
Any vibrations or sounds from the mechanical rooms will be
completely undetectable to guests in the hall.
The Green Music Center is expected to be completed in
Sept. 2008.

• Size: 1,400-seat Concert Hall
• Cost: $110 million
• Date: July 2006 – Sept 2008
CONSTRUCTION TEAM
• Design Architect: William Rawn and Associates
• Executive Architects: BAR Architects and A.C. Martin
Partners
• Construction Manager: Rudolph and Sletten, Inc.
• Mechanical and Electrical Engineer: Flack & Kurtz
and Ove Arup and Partners
• Civil Engineer: Brelje and Race
• Acoustics: Kirkegaard Associates
• Theater Consultant: Auerbach, Pollock, Friedlander
Bentonite Slurry Wall
Suspended Steel Floor
Ground Water
Rubber Insulated Supports
Native Soil
Underslab Moisture Barrier
Waterproofing Membrane
Drain Board
Concrete Subfloor
Permeable Fill
Geotextile Soil Filter
Drain Pipe
Sump Pit
Perforated Drain Pipes
Lime to Counteract
Expansive Soils
Pile Caps
50-foot Concrete Piles
20 WATERPROOF!
Topping
it All
Pure Protection is White
For true protection and performance count on the material that’s been insulating
buildings for years, Insulfoam’s R-Tech® BG (Below Grade). Known for its stable and high
R-Value, the InsulFoam® expanded polystyrene core offers an environmentally friendly
alternative that uses no HCFC or dyes. It offers outstanding water resistance; that’s why
it’s the preferred choice for most marine construction applications, like floating docks.
With complete protection from water, insects, and mold – forget the other colors and
demand the pure white protection of R-Tech BG.
800-248-5995 [ www.insulfoam.com
Built Up
Roofing
By Dan Calabrese
Y
ou know what it’s like when you’re
old and reliable. People are always
trying to find something better,
even while they take you for granted and
keep coming back to you when they need
something they can count on.
Built-Up Roofing (BUR) systems are
used to it. People have been doing it to
them for more than 160 years.
For a flat roof that achieves
waterproofing
and
drainage
excellence, it’s hard to beat a
multilayered
system
whose
cornerstones are among the most
water-resistant combinations known
to man – asphalt and coal tar.
So why does it get such fleeting
respect?
“We’re seeing built-up go to sleep
for a little bit, waiting for the next big
failure,” said Mike Brigham, founder of
Mount Ranier, Maryland-based BuiltUp Roofing Systems. “It has a history of
going away for awhile and then coming
back. People who believe in it strongly –
school systems, municipalities – believe
in hot, rubberized asphalt.”
BUR dates back to the 1840s, when
it was known as composition roofing.
The concept was so basic and viable that
it rose to capture more than 90 percent of
the flat-roofing market by the 1960s. But
the emergence of other systems, along
durability lies in the fact that all plies of
the roof are fused together into a single,
monolithic barrier that applies to the
entire surface.
That eliminates numerous problems
inherent to other systems, including:
• No need for fasteners, which create
additional risk of leakage.
• No need for ballast, which is often
laid loose in the form of stones and
can be blown off by heavy winds.
• Less movement in the form of
expansion and contraction, which
leads to buckling, ridges and splits.
The key to long-lasting
water-resistance is to install
a roof that limits movement
and maintains its elasticity.
22 WATERPROOF!
with a decline in workmanship among
BUR practitioners, saw the method’s
market share decline in the 1970s to as
low as 40 percent.
The key to BUR’s strength and
Roofing elongation does not
create an alarming risk of leakage so
long as the roof maintains its elasticity.
The problem arises, however, as roofs
age and become more likely to pull away
from themselves during expansion.
The key to long-lasting water-
resistance is to install a roof that limits
movement and maintains its elasticity.
The idea of a BUR system is to attack
the problem on both ends. First, BUR
systems are designed to limit movement
with high tensile strength well beyond
recommended industry standards of
200 pounds per square inch. Second, the
blending of all materials in a monolithic
compound preserves elasticity far longer
than single-ply roofs. At the same
time, single-ply membranes essentially
offer just one shot to stop a leak. If the
membrane is compromised, water will
get through.
When roofing contractors install
a BUR system, they fuse the multiple
plies together with hot-mopped asphalt,
resulting in a compound that self-adheres
completely to the roof at all points.
The natural water-resistance of
asphalt only adds to the BUR’s system
effectiveness as a waterproofing strategy
– estimated at five times the waterresistance of a typical single-ply system.
Basic installation of a BUR system
involves the following steps:
• Base sheets are mechanically
fastened, generally nailed, to the
deck or substrate.
• Felts are installed with either hot
asphalt or coal tar. You can also
use a cold-applied liquid adhesive,
sometimes known as solvent-based
asphalt or cutback asphalt.
• Application of hot asphalt runs at
20 to 25 pounds of coal tar per 100
square feet between each ply, or
three-to-five gallons of cold-applied
adhesive per square.
• For the surfacing, install a cap sheet
with the same amount of bitumen
or lap cement as is used to install
the plies. Then apply a flood coat
of roughly 60 pounds per square
of asphalt or 70 pounds per square
of coal tar. Then embed 400-to-500
pounds per square of gravel, or 300
to 400 pounds per square of slag.
For emulsion surfacing, use about
three gallons per square and apply an
aluminum reflective coating after the
emulsion cures to reflect UV rays.
You can install a BUR on just about
any type of roof deck, but you don’t always
do it the same way. You need to know
some basic differences for application
with different types of decks, including:
• You can’t mop a BUR system to a
wood roof deck without putting
down a rosin sheet and base sheet.
• Steel roof decks need a thickness
of 22-gauge, minimum, along with
some approved insulation, which
should be mechanically attached to
the deck to provide a substrate.
• Before you mop felts directly to
polyisocyanurate insulation, be
sure the manufacturer will still
warranty the roof. You might need
a coverboard, such as wood fiber
or perlite, in order to preserve the
warranty. The same goes for the use
of adhesives to attach insulation.
Check with manufacturers first.
• The BUR system is often mopped
directly to structural concrete roof
decks – after the deck is cleaned –
although you can use mechanically
attached thermal insulation as a
substrate. But with lightweight
insulating concrete, as well as
pre-cast gypsum panels or poured
gypsum, you’ll need to attach
venting base sheets with fasteners,
after which you might install
insulation in between the base
sheet and the roof membrane.
• Cement fiber roof decks will
definitely need a base sheet or
insulation mechanically attached.
As a general rule of thumb, a BUR
roof lasts longer if it has more plies –
although that is obviously impacted
by outside factors such as climate, foot
traffic, materials used, workmanship and
roof slope.
Efficient drainage is crucial to the
overall effectiveness of your BUR system.
LCR - Liquid Concrete Repair
Fix Cracks in Poured Concrete the Easy Way
STEP 1
Clean Crack
STEP 2
Apply Epoxy Paste
STEP 3
Mix LCR Epoxy
STEP 4
Inject LCR Epoxy
Do-It-Yourself individuals and Professionals alike can benefit from the various products
Polygem has to offer to repair concrete and accomplish other waterproofing projects.
POLYGEM, Inc.
P.O. Box 609
West Chicago, IL 60186
Ph: (888) 446-3987
Fx: (630) 231-5604
www.polygem.com
polygem@ntsource.com
Spring 2008 23
The design of the deck and roof substrate
must drain to enough outlets – situated
in the right spots – to remove water such
that it can never pond longer than 24
hours.
Many roofing
systems
are
designed
with
integral drainage
channels,
but
contact between
the
membrane
and the insulation
can impede water flow. Installers should
take care to ensure that the finished
roof membrane has sufficient slope to
minimize the amount of water retained
after rain.
Steve James of St. Petersburgbased Florida Southern Roofing said
this old system is regaining momentum
partly because of improved materials,
particularly fiberglass felt.
“The biggest improvement of late
has been the fiberglass felt as opposed
materials – not only fiberglass felt but a
variety of hybrids and other new options.
He worries, however, that they are not
always doing so for the right reasons.
“A r c h i t e c t s ,
it seems, over
the years have
lost sight of what
they’re
really
buying,” Brigham
said. “Now some of
them are buying a
warranty instead of
a roofing system.”
The proven nature of BUR systems,
combined with the constant quest for
new concepts, is creating new market
opportunities for those ready to seize
them.
Carlisle, Pennsylvania-based Carlisle
SynTec offers a variation on the BUR that
The proven nature of BUR systems,
combined with the constant quest for
new concepts, is creating new market
opportunities for those ready to seize them.
to rag felt,” James said. “This goes back
a few years, but combined with proper
practice and old-school workmanship,
you get what you get with a built-up roof
– a good many years of service with a
reasonable price tag.”
Brigham says roofers are taking
a heightened interest in new roofing
Reflective Roof Coating
Asphalt
Ply Sheet
Cover Board
Asphalt
Rigid Roof Insulation
Deck Surface
24 WATERPROOF!
WR Meadows Mel-Drain Ad
MEL-DRAIN™:
Part of
the Complete
MEADOWS
Waterproofing
System.
it calls FleeceBACK. The product was
introduced 13 years ago.
It features multiple membranes
and is promoted as having outstanding
UV- and ozone-weathering ability, as
well as an ability to last 50 years without
dropping below 200% elongation.
“Built-up roofing has been around a
long time, and you have building owners
out there who may have had a satisfactory
experience with them, so they’re
interested in going back to that multilayer approach,” said Ron Goodman,
FleeceBACK product manager for
Carlisle SynTec.
“That would be one market driver.
Another one we run into is compatibility
with existing asphalt roofs. Building
owners are looking to conserve costs
and extend the life of the existing
roof. Either they have an existing
smooth built-up roof, where we can go
in and put on an EPM or TPO cap sheet
that’s hot-mopped to the smooth builtup roof.”
One variable among BUR systems
usually depends on geography. BUR
systems in the south most likely include
a white-reflective roof – which fends off
UV rays and reduces air conditioning
usage in the building. BUR systems in
the northern U.S., by contrast, are more
likely to be dark colored so as to help
retain heat.
The currently heightened interest
in energy-efficiency is helping to drive
this trend, particularly builders’ interest
in seeing their buildings certified under
the U.S. Green Building Council’s
Leadership in Energy and Environmental
Design (LEED) Program.
On the surface, you might say,
BUR systems seem relatively foolproof,
which is probably why the concept has
remained in use for the better part of two
centuries.
But the success of any particular
installation always depends on the right
materials, the best workmanship and a
sound design. As more roofers master
these techniques, BUR systems improve
their chances of being around a century
from now.

Designed for use as part of a complete
waterproofing system from W. R. MEADOWS,
MEL-DRAIN is the ideal choice for enhanced
waterproofing and positive drainage protection.
Used as part of a worry-free, single-source
waterproofing solution, MEL-DRAIN incorporates
a high compressive strength core combined
with a varied selection of geotextile facings
to suit specific project needs. Its high flow
capacity prevents clogging and relieves
hydrostatic pressure buildup. Use MEL-DRAIN
as part of your next waterproofing system.
W. R. MEADOWS, INC.
300 Industrial Drive
P.O. Box 338
Hampshire, IL 60140-0338
Phone: (847) 214-2100
(800) 342-5976
www.wrmeadows.com
Spring 2008 25
Engineer’s Corner
Foundation Crack Repair with Low-Pressure Injection Systems
By Jay Schmid
T
oday’s
homeowners
are
demanding more useable living
space,
which
increases expectations on
their basements. These
spaces are increasingly
being relied on for home
offices, storage, and
recreation, and nothing
can ruin the enjoyment of
that space more than a leaky foundation.
In spite of improved construction
materials and techniques, concrete can
still crack and cracks many times will
leak. Fortunately there are a couple of
simple-to-use systems that can provide
economical and permanent repairs.
Low-pressure
crack
injection
systems are becoming increasingly
popular as the method of choice to
repair leaky cracks in poured foundation
walls. The days of digging, chipping and
drilling are long gone as these easy-touse injection systems allow for the repair
and waterproofing of most foundation
cracks from the inside using simple hand
tools.
Today, both the epoxy and
polyurethane resin are available in
cartridge style systems that can be used
with standard caulking guns or dualcartridge dispensing tools. Both systems
will effectively fill the crack while keeping
water out.
26 WATERPROOF!
The choice now becomes which
system to use? Often a contractor will
develop a preference for one injection
system over, just like some prefer wood
over fiberglass hammer handles. Many
times the best tool for the job is the one
that works best for you!
Epoxy Injection is traditionally used
to weld cracked concrete back together
to restore the structural integrity of the
concrete wall. Epoxies are available in
very low viscosities that make them ideal
for injecting hairline cracks. Epoxy’s
high-strength bonding ability makes
them a clear choice for repairs such as
concrete that cracked during backfilling.
Polyurethanes are available in one
or two-part liquid resins that chemically
react with available moisture and foam up
and create a flexible seal inside the crack.
They can even seal off the outside of the
crack which can be preferable in porous
or loose soil conditions. Polyurethane
foam is ideal for filling wider cracks and
cracks that may exhibit signs of settling
or movement from changing seasons and
soil pressures. Polyurethane also works
great for filling in voids or sealing leaks
around pipe penetrations.
Installation: Both systems can be
installed in less than one hour and can
be used conveniently from the inside
of the basement. This eliminates the
need for digging up the outside of the
foundation which can be disruptive,
time consuming and costly. Both resin
systems are available in single 10-ounce
caulking style cartridges or dual side-byside cartridges and injected with lowpressure hand dispensing tools. Both
systems are equally suited for typical
foundation cracks but epoxy injection
is best installed in dry cracks while
polyurethane resin systems are moisture
reactive and may actually require the
crack to be pre-wet with a small amount
of water in order to activate the full
expansion of the resin.
Both systems are essentially
installed the same way, with similar tools
and techniques. First, surface mounted
plastic injector ports are glued over the
crack with a fast-setting epoxy paste
at 10”-12” intervals. Additional epoxy
paste is used to cover the crack between
the ports. Once the epoxy surface seal
has hardened, the resin of choice is
slowly injected into the lowest port
utilizing hand pressure equal to a firm
handshake.
The resin will flow into the crack
filling from the bottom up and then
eventually appear at the next higher
port. The flow of the injection resin is
halted by releasing the pressure on the
cartridge. Remove the nozzle from the
lower port and cap the port. Move the
cartridge up to the next higher port and
resume injecting the resin again. Repeat
this process until the entire crack is full
and resin starts to flow out the top of the
crack.
Tips: Seal up any part of the
foundation crack visible above grade.
Allow the surface paste epoxy to harden
before starting the injection process.
Attempting to inject too soon can cause
the surface seal or ports to rupture or
“blow-out”. Also applying too much
pressure to the cartridge may encourage
the tubes to leak.
Injecting urethane resins slowly will
allow the resin time to begin reacting
with the moisture and maximize the
expanding action of the resin. After
full cure of the injected resin system,
the ports and epoxy surface seal may be
removed for cosmetic reasons.
Always follow the manufacturers’
installation and safety instructions and
finally, remember these are chemical
adhesives that will stick to most
everything—including you!
Mr. Schmid is general manager of
Polygem, Inc., a manufacturer and epoxy
and polyurethane crack injection systems.
EZ Breathe*
Balanced
VENTILATION
for
HEALTHIER Living.
*Patent pending.
Your solution for clean,
healthy living in ICF homes
The EZ Breathe Advanced Home Ventilation System
is ideal for homes built on slabs, basements or
crawl spaces, delivering all the benefits of ERV
and HRV systems for about one-third of the cost.
Clearly superior in all areas, including installation,
operation and function, EZ Breathe gives your
business the advantage of industry-leading
performance and efficiency.
Conditioned
Indoor Air
Fresh,
Filtered Air
Fresh, Outdoor
Air In
Available for homes with
basements, crawl spaces,
as well as slab homes
Moist, Contaminated
Air Out
Conditioned
Indoor Air
Fresh,
Filtered Air
Moist,
Contaminated Air Out
Slab Home
Breathe easier with the cleanest ventilation ever – EZ Breathe.
To find out more about how EZ Breathe offers balanced home ventilation for all home types,
visit www.ezbreathe.com or call 866-822-7328.
Fresh,
Outdoor
Air In
BarrierXT
New Revolution in Waterproof Concrete Insulation
On the Market
Hollow Kick Molding
New!
3/4”
Thick
v
v
v
v
3/4” Thick 4’x60’ Rolls
100% Moisture-Proof
Insulates from Heat Loss
Patented Self Taping Seams
vBackfill protection
vProtects waterproofing
membrane from damage
v Radiant floors
v Snow and ice melt
Call Northwestern Ohio Foam Products to find out why The Barrier and
BarrierXT are the best solutions for
waterproofing membrane protection.
800-339-4850
WWW.THEBARRIER.COM
Hollow Kick Molding, by Boccia, is a linear through-floor
drainage molding that promises to solve even the most severe
basement drainage problems.
The system installs between the vertical foundation wall
and the basement slab, creating a fully functional floating slab
detail with an aesthetically pleasing cove plate. The product
also functions as an expansion joint to accommodate thermal
movement.
Its primary purpose, however, is to solve basement drainage
problems. The system relies on a perforated drain pipe installed
on the inside of the footing
to channel the water
away from the structure.
Whether it’s used with new
foundations, or retrofit
to existing basements,
Hollow Kick Molding
works. Properly installed
with permeable fill and
drain pipe, it can handle an
impressive 8.5 gallons per minute, per linear foot.
For more information or to request a free sample, call
800-491-1750 or visit www.bocciabros.com/hkmpage.htm.
Eco-Friendly Moisture Barrier
Air Shield LMP from W.R. Meadows is a water-based
moisture barrier that cures to form a tough, seamless, elastomeric
membrane. As a drainage plane, the product prohibits liquid
water intrusion into the
substrate, if properly
applied. The product is
self-sealing when tested in
accordance with ASTM.
Air Shield has the
additional
advantage
that it lets vapor to pass
through it while being
impermeable to liquid
water. It can be applied
to most common surfaces and integrated into various wall
systems. Air Shield is suitable for both new construction and
retrofit applications.
Because the formulation is water-based, it provides a
“green” solution for all building envelope applications needing
a vapor permeable air barrier. The product is available in fivegallon pails and 55-gallon drums.
For more information, call (847) 214-2100, e-mail
wrmil@wrmeadows.com or visit www.wrmeadows.com.
!!! 28 WATERPROOF!
Foundation Waterproofing Sprayers
GreenShield Wood Sealer
GreenShield, a new wood and paper products sealer from
Greenstone Holdings, Inc., protects from water, moisture, and
fire. The product is easy to apply and cures fast.
GreenShield is based on organo-silane technology (OST),
penetrating and encapsulating the material
at a molecular level. Basically, it creates
a composite material of cellulose and
ceramic. The product was designed for
wood, but will seal nearly any derivative
including paper, lumber, plywood,
drywall, and logs.
The material is completely organic,
and can be applied by brush, spray,
dipping, or a pressure treatment process.
It is a clear thin liquid and crystallizes
within the material in very short time,
reacting only with the moisture in the air and the material itself.
It will not change the color of the material.
GreenShield is new to the market—introduced last year—
and has been used successfully on log homes, new construction,
and old wooden structures.
For more information, visit www.egreenstone.com, or call
(212) 946-4734.
Epoxy Crack Repair
Liquid Concrete Repair from PolyGem, Inc. is moisture
insensitive epoxy designed to permanently restore structure and
design strength to cracked concrete surfaces.
LCR is a simple-to-use, two-part epoxy that has a working
time of 30 minutes, will harden in 8 hours and achieve full bond
strength in about 24 hours.
The product can be used on
wet or dry surfaces, as well
as underwater, and can be
sanded and painted once
dry. This self-leveling epoxy
remains semi-flexible to
help repairs withstand
expansion and contraction.
LCR is typically used
to repair cracked foundations, driveways, patios, and sidewalks,
secure loose railings and posts, and on swimming pools,
basement, and garage floors. LCR can also be used to bond and
repair wood, metal and fiberglass materials.
It is sold in convenient 10-ounce single caulk style
cartridges.
For further information on this product, call (630) 231-5600
or visit our website at www.polygem.com.
1-877-APPLY-IT
» Increase Your Jobsite Productivity «
tEmulsion Units
tSolvent Units
tGmax II 7900 Pump
tHeated 115 gal. Tank
tElectric Hose Reel
tHeat Exchanger
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www. appliedtechnologies .com
roduct
Green Pxic
o
-T
n
o
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or
Low Od
e
VOC-Frelean-up
Water C
AMES’ BLUE MAX TM LIQUID RUBBER
Impervious Rubber Membrane
Ames' Blue Max™ is a special blend of adhesive, high-strength, elastomeric
liquid rubber. It is a new, impenetrable, rubber technology for waterproofing
in extreme wet situations. It is high in solids
and dries to a tough, elastic membrane that is
up to 800% elastic to resist cracking and
peeling. Blue Max glues surfaces together. It
flows into cracks and crevices as a liquid and
sets up as a durable rubber to seal leaks
wherever they occur. Blue Max is available in a
thick trowel-grade and a heavy duty sprayable
grade. It dries to a translucent blue color.
Waterproofs & Seals:
• Foundations & Basement Walls
• Insulated Concrete Forms (ICF)
• Cisterns & Ponds
• Flat Roofs
• Concrete Block
• Underlayment & Sheathing
• Liquid Alternative to Tyvex type Systems
• Replaces Bitumen
Ames Research Laboratories, Inc.
PO Box 1350
Jefferson, OR 97352 USA
Toll-Free: 1-888-345-0809
amesstaff@amesresearch.com
www.amesresearch.com
Spring 2008 29
Coming Up
Take a peek at what’s coming up in the
Next Issue of
T
he Summer 2008 issue of Waterproof! Magazine
continues to provide practical, in-depth coverage
waterproofing contactors have come to expect form this
publication. Here’s a peek at what’s coming up:
Crack Repair for CMU Foundations:
In many areas of the country, the majority
of house foundations are made from
concrete masonry units (CMU). With
this type of foundation, minor cracks are
inevitable. Serious cracking and/or bowing
is, unfortunately, not uncommon. This story
explains how to determine the severity of the
problem, and the products and techniques
available to fix them.
You’ll Never Have a
Wet Basement Again
F
20% O
F R*
ORDE
FIRST
YOUR
The patented Hollow
Kick Molding® system
is the latest
!"
#$%
in water drainage
engineering,
designed to solve
the most
%
severe water problems.
inlet area
Ü Increased effective
hours
Ü Reduced installation
detail
Ü Attractive floating slab
drainage opening
Ü Prevents covering of
minute
Ü 8.5 gallons per ft. per
molding
Ü Through floor drainage
* Offer may not be combined with quantity discounts
30 WATERPROOF!
For more information and
a free sample, call
800-491-1750
Getting Flat Roofs to Perform: Flat roofs—those with a pitch of
less than 2:12—are standard for most commercial construction,
and are also common for residential work in some regions.
From material options to specialized installation techniques,
this story tackles how to get it right the first
time.
Dealing with Drainage: In any type
of below-grade work, waterproofing is only
half the solution. The system of drain boards
and tiles that direct moisture away from
the structure are absolutely critical for success.
In addition to these features, the magazine
will be full of the waterproofing news, products,
and other information you need.
Ad Index
Ames Research Laboratories
Applied Technologies
Armtec (Platon)
Boccia
Carlisle Coatings & Waterproofing
Cetco
Cosella Dorken
Epro Waterproofing Systems
EZ Breathe
Grace Construction Products
HouseGuard
Insulfoam
JDR Enterprises (J-Drain)
Mer-Ko (ParexLahabra)
Northwestern Ohio Foam Products
POLYGEM
Polyguard Products
Spraytech
StablWall Wall Bracing
The Barrier Insulation
W.R. Meadows
www.waterproofmag.com
29
29
9
30
IFC
15
BC
IBC
27
19
5
21
9
13
28
23
7
28
11
6
25
R
S
EA
R
800-882-1896 •
OF DIFFE
RE
N
ON
FO
W a te r p r oo f i n g Sys tems
LD
I
TI
A
OR
CE
W
LW
ND
ORLD CO
www.eproserv.com
High Performance
Waterproofing and
Gas Barrier Systems
Epro Design
• Composite Technology (laminated components)
• Field Installed
• Monolithic
• Highly Adhesive
• Flexible Component Selection
Purpose of Design
• Superior Strength
• Simplifies Leak Detection
• Reduces the Effects of Future Movement
• Redundancy of Protection
• Maximizes Drainage Planes
• Custom Design for Special Requirements
Complete Redundancy
• Monolithic and Fully Bonded Barrier
• Multiple Waterproofing Barriers
• Multiple protection and Drainage Courses
Application Systems
• Concrete and Block Walls
• Blindside
• Beneath Slab
• Between Slab and Deck
9
8
1
13
2
7
Legend
1- Ground Water Seepage
2- Typar® Filter Fabric
3- Water Flow Through Core
4- Gravel
5- Drain Pipe
6- Water to Collector Pipe/Sump
7- Foundation Wall
8- DELTA®-FAST’ner™
9- DELTA®-FLASH
10- Interior Floor
11- DELTA®-MS Underslab
12- Gravel Drainage Layer
13- Damproofing/Waterproofing
3
11
10
4
12
5
Systems For Building Healthier Homes.™
DELTA® protects property. Saves energy. Creates comfort.
Protecting new homes from water intrusion is important, especially below grade,
where dampness and moisture lives year round. Cosella Dörken develops, markets
and manufactures intelligent water management systems for foundations in the
residential home building industry.
DELTA® Systems are unique, long lasting (50 years+), very cost effective and
provide highly effective waterproof barriers that are environmentally friendly and
available across North America.
Contact us today at 1-888-4DELTA4 (433-5824) for an installed quote or for more
information.
DELTADRAIN.com