Deep Foundations Deep Foundations

Transcription

Winter 2015
Deep Foundations
Livable Basements
Green Roofs and Solar
Trade Show Preview
Structural Repair
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Inside This Issue
Features
16
20
Publisher
Summit Publishing, LLC
Options for Deep Foundations
When foundations extend more than 15 or 20 feet
below grade, waterproofing becomes far more complex.
Differing substrates, intense hydrostatic pressure is
intense, and blindside installation techniques add to the
difficulty.
Advertising Manager
16
Livable Basements
20
Commercial Structural Repair
By Bob Thompson
Carbon fiber, epoxies, and polyurethane grouts are used
to repair both residential and commercial foundations,
and the scale of many commercial jobs is breathtaking.
28
Editorial Director
Clark Ricks
The right combination of waterproofing and
dehumidification products can ensure below-grade living
space is just as comfortable and inviting as the abovegrade portions.
24
Craig Shorts
24
Integrating Green Roofs and Solar
Contributors
Stacy Byrd
Steve Geiger
Nikki Krueger
Ed Meyer
Brett Oakley
Dave Polk
Bob Thompson
Circulation Manager
Monica Hall
Commercial roofers and roof designers are increasingly
being asked to combine photovoltaic panels with
vegetative roofing. Roof membranes, structural
supports, and careful detailing are all key to a successful
installation.
28
Art Director
Brad Moulton
Departments
6
Comment: Trade Show Season
8
WATERPROOF! News
12
Personalities
14
Trade Show Corner
30
On the Market
On the Cover:
Deep foundations are notoriously
difficult to waterproof. Scheduling
is complex, hydrostatic pressure
is intense, and sometimes include
differing substrates.
Photo Courtesy CETCO.
Winter 2015
Summit Publishing
Deep Foundations
Livable Basements
Green Roofs and Solar
Trade Show Preview
Structural Repair
We’d Like to Hear From You...
Waterproof! would like to know what you think about this issue. Let us know
what you want to see featured as well as what you’d like to change. Email the
editor with your comments at [email protected], or write to us at:
WATERPROOF! Magazine - 884 East 700 North - Mapleton, UT, 84664
Be sure to include your name, address, and a daytime telephone number. Letters
may be edited for publication. Unsolicited manuscripts will not be returned
unless they include a self-addressed, stamped envelope.
4
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Volume 9 Number 1
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Copyright © 2014 by Summit Publishing . All
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Magazine is a trademark of Summit Publishing.
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Editor’s Note
Comment: The Trade Show Season
In just a few weeks, I will be packing my bags and
heading to sunny Las Vegas for the Word of Concrete
trade show. It’s just one of nearly a dozen major shows
relevant to readers of this magazine that take place every
winter.
This year marks the 10th consecutive trip to WOC, and
while the size and quality of the show has varied over the
past few years, I have always found it to be worth my time.
Trade shows offer an unparalleled opportunity to network,
see the latest products, and learn the latest in business and
technical skills from verified experts. Inevitably, I find the
week both exhausting and rejuvenating.
Some readers of this magazine may find other events
more meaningful; roofers at IRE, sump pump installers at
WWETT, and residential builders at the IBS.
Regardless of the show, I enjoy seeing the advances
that the industry has made.
However, I am most inspired by the
determination and optimism of the
other attendees. The manufacturers
and distributors who are making
plans for business expansion. The
contractors who are there to learn
the new skills and capabilities that
will take their company to the next
level.
by Clark Ricks
If you choose to attend World of
Concrete, you’re welcome to drop by and say hello. Email
me to set up an appointment (editor@waterproofmag.
com) or stop by our booth in the South Hall, located at
S11149. Most of the other waterproofing-related booths
will be in the South hall, as well. I hope to see you there. S
D RAIN
1 800 828-2947
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WATERPROOF! News
Largest Roof in Chicago
Completed
One of the largest roofing projects
in the nation recently wrapped up in
Chicago. Re-roofing the 10.3-acre Jardine
Water Filtration Plant—reportedly the
world’s largest—is the biggest roofing
project completed in Chicago in the past
decade. The two-year program included
replacement of 712,000 board feet of
insulation and installation of a 448,000
sq. ft. of white PVC roofing membrane.
It replaced a 50-year-old graveled coal
tar roof and will be far more resistant to
wind and weather extremes, chemicals,
UV light and bird deposits.
The Jardine plant processes more
than one billion gallons of water per day,
and provides drinking water for more
than 5 million people.
“The Jardine plant is an engineering
marvel, but after a half-century, it was
time for a total makeover,” said John
Cronin, president of Trinity Roofing
Service, the Chicago-based contractor
that performed the work.
John Doyle, president of Flex
Membrane International Corp. in
Leesport, Pa., which provided the
membrane material, says it’s the most
complex job the company has completed
in its 25-year history, but is confident the
material and workmanship will stand
the test of time. “The new Jardine plant
roofing system will perform reliably
for many decades,” Doyle says. “We’ll
come back in 50 years to see if it needs
replacing.”
Penetron and WR Grace
launch Partnership
In October, an agreement was
announced that allows W.R. Grace to
market, sell, and distribute Penetron’s
crystalline
concrete
waterproofing
additive in North America. The
partnership gives Penetron exposure to
8
WATERPROOF!
a much bigger market, and fills a key
product niche in Grace’s waterproofing
line-up.
The Grace Construction Products
division of W.R. Grace & Company
already markets a wide range of specialty
construction chemicals and materials,
and recognized a growing demand for
crystalline waterproofing solutions. “Partnering with Grace enables
Penetron to bring our innovative
solutions to a wider customer base and
better meet their specific construction
challenges,” said Robert Revera, president
and CEO of The Penetron Group. “This
allows us to grow our leadership position
in the crystalline technology arena
and add value to the Grace line, while
maintaining the high level of support our
customers have come to expect from us.”
Henry Acquires West
Development Co.
In September, Henry Company
acquired West Development Group,
based in LaGrange, Ohio.
WDG
specialized in silicone and spray
polyurethane foam roofing technologies
for
commercial
and
residential
applications.
The acquisition of WDG reinforces
Henry’s ability to deliver custom
solutions for the benefit of the owner,
occupant and environment. Silicone roof
coatings create a seamless, flexible and
durable protective barrier that serves
as a reliable defense against all weather
conditions, including harmful ultraviolet
(UV) rays and severe tropical storms,
as well as providing tenacious adhesion
against high winds.
“We believe this acquisition will
strengthen an already impressive
portfolio of products and allow us to
provide much needed solutions for our
customers”, said Mike Kenny, CEO of
Henry.
Sump Pump Manufacturer
adds Capacity
Liberty Pumps, maker of highend, energy-efficient sump pumps,
announced a major expansion at
their Bergen, NY headquarters. In
September, the company broke ground
on a major building expansion that will
add an additional 81,000 sq. ft. to its
manufacturing and warehouse space,
plus another 8,000 sq. ft. in its product
research and development area.
Since its last expansion in 2008,
Liberty has more than doubled its sales.
“This expansion will provide needed
space for additional manufacturing
cells along with supporting inventory –
improving workflow and productivity.
We want to make sure that as we grow,
we continue to provide a high level of
service to our customers.” states Randall
Waldron, VP of sales and marketing.
“Expansion to the R & D facilities
will support development of new product
lines and improve the product time
to market,” he continues. The project
also includes several pieces of new
manufacturing equipment intended to
improve efficiencies and further support
the company’s “source and build in the
U.S.” initiative. Construction is planned
to be completed by February 2015.
ASTM Wind standards for
roofs
The Asphalt Roofing Manufacturers
Association (ARMA) has partnered
with ASTM International to develop the
first Product Category Rules (PCR) for
asphalt roofing in North America.
This free PCR is a valuable resource
to the asphalt roofing industry because
it provides ways for manufacturers to
measure the environmental impact of
their products. It also offers guidelines
for the development of Environmental
Product Declarations (EPDs).
This tool is an important
development for all members of
the building construction industry,
because it will create globally consistent
documentation of how asphalt roofing
products impact the environment.
ARMA and several of its member
companies
participated
in
the
development of this PCR, titled Asphalt
Shingles, Built-Up Asphalt Membrane
Roofing, and Modified Bituminous
Membrane Roofing. The guidelines
cover asphalt shingles applied over
underlayment, and low-slope roofing
assemblies consisting of various
combinations of factory-produced
asphalt-saturated or coated base sheets,
ply sheets and cap sheets together with
specified viscous asphalt coatings,
adhesives and surfacings.
This new document can be accessed
for free on ASTM International’s website
(www.astm.org/certification).
RMCA Takes Political Action
The Roof Coatings Manufacturers
Association (RCMA) is taking action to
ensure lawmakers understand how their
actions affect the commercial roofing
industry.
In July of 2013, RCMA facilitated
meetings with 70 different congressional
offices to discuss roofing and the law,
Balanced
VENTILATION for
HEALTHIER Living.
Removing Airborne Moisture
EZ Breathe Advantages
• Dries out damp/musty basements
and crawlspaces
Papers Sought For
Polyurethane Conference
A call has been issued seeking
technical papers to be presented at
the 2015 Polyurethanes Technical
Conference.
The conference will take place
October 5-7, 2015 in Orlando, Fla.
Each year, the conference addresses the
latest in breakthrough technologies.
Papers should address innovations and
developments involving polyurethane
chemistry, including new polyurethane
products
and
applications;
raw
material or additive innovations; or
breakthroughs in equipment design or
operation. Papers may also focus on
issues associated with the manufacture,
use, handling, transportation, and
disposal of polyurethanes, as well as
health, environmental, and product
stewardship issues. Regulatory and
legislative topics, code and standard
developments are also welcome as paper
and poster topics. Paper abstracts are due
February 2, 2015.
and since then, RMCA’s manufacturing
members have continued discussions
with politicians from their states and
districts. This fall, a New Jersey roofing
firm invited their representative to their
headquarters.
U.S. Rep. Leonard Lance (R-NJ7)
met with RCMA executive director John
Ferraro, and Karnak Corp. president
• Helps in reducing mold growth
• Reduces window condensation
• Removes allergens and
indoor pollutants
• More efficient energy consumption
• Reduces number of service calls
Becoming an EZ Breathe Distributor
“Our customers who received the EZ Breathe
with their waterproofing jobs are much
happier customers compared with those
who do not receive the system. So, we now
recommend the EZ Breathe with every job
we do and our customers are thrilled.
We are seeing a lot more referrals than
we used to!”
– C. Smith, Basement Boss
*Patent
pending
Low Moisture,
Clean Air,
Healthy Home.
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www.ezBreathe.com • 866.822.7328
Winter 2015
9
Sarah Jelin and discussed issues such
as clarifying the Homeowner Energy
Efficiency Tax Credit IRS 25C tax credit
to include roof coatings; the Commercial
Building Tax Deduction (IRC Sec. 179D);
and concerns over the EPA’s proposal to
lower the National Ambient Air Quality
Standard (NAAQS) for ground-level
ozone.
RCMA Merges with
Reflective Roof Coatings
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WATERPROOF!
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The Roof Coatings Manufacturers
Association (RCMA) and the Reflective
Roof Coatings Institute (RRCI) have
merged. The single association, effective
January 2015, will continue to promote
and expand the market for roof coatings
through education, and technical
advancement.
Bringing the two associations
together will result in a stronger,
more unified voice for initiatives and
better representation to the various
legislative, regulatory, and building code
development arenas. It will also create
a more robust
communications
and
marketing
program for roof
coatings, and will
result in a more
detailed
and
c ompre h e ns ive
industry shipment report which will be
a huge benefit to members.
“RCMA is thrilled to merge with the
Reflective Roof Coatings Institute,” said
John Ferraro, RCMA executive director.
“RRCI has been a leader on reflective
roof coatings issues and we look forward
to their members’ expertise within
RCMA.”
The association will continue to be
called the Roof Coatings Manufacturers
Association, with the existing logo and
website, and will hold its annual meeting
in New Orleans, Louisiana on February
22-23, 2014, in conjunction with the
International Roofing Expo. S
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New CEO at Henry
In mid-November, the board of
directors at Henry Company appointed
Frank Ready
as Chief Executive Officer.
Ready also was
given a seat on
the board.
Robert
Newbold,
chairman of
the
board,
says, “Frank brings exceptional building
products industry experience, strong
leadership and a track record of career
success and accomplishment.”
Prior to joining Henry, Ready
worked at Armstrong Worldwide for
30 years in avariety of senior leadership
roles, including CEO of Armstrong
Floor Products Worldwide.
“I am very excited about the
opportunity to use my background in
building products to lead the company in
this period of growth,” said Ready. “While
Henry is already the market leader in
many of its key markets, I intend to…
enhance its market position and meet or
exceed our customer’s expectations.”
Ready replaces Mike Kenny, who
served as the interim CEO for seven
months during the CEO search.
New Marketing VP at Sika
In November, Sika promoted
Russell Livermore III to the position of
Vice President of Marketing, Industry
Target Market
USA. In his
new position,
Livermore
reports to Dan
Hilliard, senior
vice president,
Industry Target
Market USA.
Livermore
12
WATERPROOF!
Personalities
joined Sika Corp. in 2004 as senior
marketing coordinator, and has held
positions of increasing responsibility
over his tenure. In his new role, he will
manage all marketing-related efforts,
strategic product management and
product commercialization efforts for
Industry Target Market USA.
Livermore holds a Bachelor’s
of Science degree in Marketing and
Advertising from Ferris State College.
Parex USA Revamps
Leadership
In September, Parex USA announced
a new leadership structure. Rodrigo
Lacerda is now president of ParexGroup
Americas, and James Chilcoff
is
managing director of Parex USA.
As president of ParexGroup Americas,
Lacerda will supervise all companies
in North and South America and
will
continue
to be part of
P a r e x G r o u p’s
Executive Committee as senior
executive vicepresident.
Chilcoff is new
to Parex, having
previously spent
twelve years with James Hardie in various
sales, marketing and general management
roles. More recently, Chilcoff was the
Managing Director of U.S. Gibraltar
Industries, a leading manufacturer of
metal and flashing products. Chilcoff
has a BA in
Marketing
from
Eastern
Michigan
University
and a MBA in
Management
from
Xavier
University.
National Coatings Adds
Sales Partners
National Coatings Corporation
(NCC), a supplier of durable cool
roof coatings, has added to their sales
team. NCC’s leading brands include
AcryShield, AcryPly, AcryGuard, and
AcryFlex.
In September, the company
announced Specialties Plus, Inc. of
Tulsa, Okla.,. In October, the company
partnered with American Roofing Sales,
Inc. (ARS) of Marietta, Ga. to expand
their reach in the Gulf States Region.
In December, they added the Dunne
Company Inc. of Dallas, Texas.
All three companies are now part of
NCC’s Gulf States regional team.
Specialties Plus will market to
builders and designers in Oklahoma
and Arkansas. ARS will provide client
support and cultivate new relationships
with architectural and roofing firms
in Georgia, Alabama, Tennessee and
the Western portion of the Florida
panhandle.
The Dunne Company has been
offering roofing since the mid-1970s,
when Bill Dunne expanded his father’s
concrete business. “I’m elated to have
Bill represent us here in the North Texas
market.” said Collin Qualls, National
Coatings’ district sales manager.
“Bill and his
company bring
a
tremendous
amount
of
knowledge,
respect
and
professionalism
to
National
Coatings.”
QUALITY ASSURANCE
PROGRAM
Trade Show Corner
GreenBuild
In 2005, shortly after hurricanes
Katrina and Rita pounded the Gulf Coast
U.S. Green Building Council promised
to help rebuild New Orleans by bringing
their Greenbuild tradeshow to the area.
This year’s show, held Oct. 20-22, at city’s
Morial Convention Center, marked the
fulfillment of that pledge.
Among the 600-plus exhibitors were
at least a dozen major waterproofing
manufacturers,
including
Carlisle,
CertainTeed, Cetco, Cosella, Firestone,
Kryton, Marflex, Soprema, Stego, and
Tremco. The show floor also featured
multiple exhibitors with green roof
systems.
Next year’s event is scheduled for
mid-November in Washington D.C.
Construct Canada
Canada’s
largest
construction
tradeshow was held in Toronto, Canada,
Dec. 3-5.
The show was combined with six
other construction and architecture
tradeshows to create one of the largest
construction-related trade shows in
North America. Attendance reportedly
topped 35,000.
Most of the major brands were
represented,
including
Armtec,
CertainTeed, Carlisle, Cosella, Firestone,
Grace, Henry, Johns Manville, Kemper,
Kryton, Mapai, Pecora, Protecto-Wrap,
Sika, Soprema, Tremco, and Xypex.
It’s geared toward new residential
construction, and the educational
seminars reflect this fact. Exhibitors
include manufacturers of basement
waterproofing, drainage boards, and
sump pumps. For more information,
visit http://buildersshow.com.
World of Concrete Preview
World of Concrete 2015 will run
Feb. 3-6 at the Las Vegas Convention
Center, opening just ten days after IBS
wraps up in the same location. WOC
marks its 40th anniversary this year, and
features 1,300 exhibitors, 80 + speakers,
and a projected 50,000 attendees.
Most of the waterproofing-related
booths will be in the South hall,
including this magazine, located at
S11149. Many of the advertisers in this
issue have included their booth numbers
for convenience.
These exhibitors
represent every imaginable category
of
waterproofing:
peel-and-stick
IBS Preview
The National Association of Home
Builders’ (NAHB) International Builders’
Show will be held Jan. 20-22 at the Las
Vegas Convention Center in Las Vegas,
Nev.
14
WATERPROOF!
membranes, dimple drain sheets, sprayapplied coatings, crystalline admixtures,
sump pumps and so on.
The World of Concrete also offers
educational courses, and the BHA is
holding its winter seminar in conjunction
with the show, with a welcome reception,
technical presentations and an annual
membership meeting at various locations
near the convention center.
For more information about
World of Concrete 2015, visit www.
worldofconcrete.com.
Internat’l Roofing Expo
The 2015 International Roofing
Expo (IRE) will take place February
24-26, 2015 at the Morial Convention
Center in New Orleans, La. IRE covers
all segments of the roofing industry, and
is billed as a “once-a-year opportunity to
maximize your company’s productivity,
efficiency and
profitability.
Last, year,
attendance
was 9,568, a
20% increase
in
attendees
compared to
2013. “The 2014 International Roofing
Expo drew the largest attendance in the
show’s history,” confirms Tracy Garcia,
IRE Show Director. “In addition, the
tradeshow floor was the largest since
2008.”
Participants at the 2015 show are
expected to come from all segments
of the roofing industry, including
commercial and residential contractors,
builders, remodelers, building owners,
facility
managers,
manufacturers,
architects, engineers and other related
industry professionals.
For more information, visit www.
theroofingexpo.com.
WR_Meadows_ WhyLimit_WP_2014 copy_Layout 1 8/1/14 12:08 PM Page 1
Sump Pump Trade Show
The Water & Wastewater Equipment,
Treatment & Transport (WWETT)
show will be held in late February. The
three-day event is expected to attract
some 12,000 attendees and 500 exhibits.
Held at the Indiana Convention Center
in Indianapolis, the exhibit hall will be
open February 24-26, 2015.
Feb. 23 is “Education Day,”
and the Sump and Sewage Pump
Manufactures Association (SSPMA)
will provide a three-session course on
pump installation and maintenance.
These are: Sizing Guidelines for New or
Replacement Sewage Pumps, presented
by
Deron
Oberkorn,
corporate
product development manager for the
Zoeller Company; Backup Battery and
Combination Pump Systems Evaluation
and Installation, presented by Alan
Schulman, the founder and CEO of
Glentronics, Inc.; and Specifying Pumps
/ Why Do Pumps Fail? presented by Jeff
Hawks, President of Champion Pump
Company, Inc..
The second session listed above is
based on a SSPMA white paper titled
“Why Homeowners Need a Backup
Sump Pump System.” Available online
for free distribution at www.SSPMA.
org, it answers common questions
regarding basement sump pumps. For additional information, visit
www.wwettshow.com.
Waterproofing isn’t a one-size-fits-all business.
Why limit your options?
W. R. MEADOWS offers the industry’s most comprehensive
line of products to meet your waterproofing needs, including:
• CEM-KOTE® CW PLUS – Crystalline Waterproofing
• ADI-CON® CW PLUS – Integral Waterproofing
follow us:
• CEM-KOTE FLEX ST– Flexible Cementitious Waterproofing
• CEM-KOTE FLEX CR – Flexible Chemical (Hydrogen Sulfide)
Resistant Waterproofing
• MEL-ROL® – Sheet-Applied Waterproofing
• MEL-ROL LM – Liquid-Applied, Water-Based Waterproofing
• PRECON® – Blindside/Underslab Waterproofing
• MEL-DEKTM – Bridge Deck Waterproofing
For a solution based on your needs … call W. R. MEADOWS today.
wrmeadows.com
1-800-342-5976.
© W. R. MEADOWS, INC. 2014
Electronic Leak Detectors RCI Makes Plans for 30th
Anniversary Show
RCI will hold its 30th annual
convention and tradeshow March 5-10,
2015, in San Antonio, Texas. at the San
Antonio Convention
Center and Grand
Hyatt Hotel. The show
features
impressive
lineup of speakers
and subjects in 22
seminars.
For more information, visit www.
rci-online.org/international-convention.
html
High‐ and low‐voltage testers for detecting pinholes and defects in non‐conductive roofing and waterproofing membranes. (630) 789‐0990 www.wegenerwelding.com Winter 2015
15
Photo Courtesy CETCO
Complex scheduling, differing substrates, and
intense hydrostatic pressure are just a few of the
challenges associated with deep foundations.
Options for Deep
Foundations
When commercial construction
extends far below grade, the challenges
of waterproofing increase exponentially.
Scheduling is complex, hydrostatic
pressure is intense, and the systems
are often installed using blindside
techniques.
Dave Polk, president of Epro
Solutions, explains, “Deep foundations
are becoming more common across the
U.S., and the reason they’re going deeper
is because cities are running out of room.
For example, urban apartment buildings
are typically built on top of the parking
area, and the capacity of the belowground parking structure limits the size
of the building that can be built above it.”
High-rise apartments, tunnels,
underpasses, and parking garages are
just a few applications where designers
16
WATERPROOF!
DEEP FOUNDATIONS
and installers must create solutions.
Polk continues, “It’s true that
waterproofing is waterproofing. But the
difference between shallow foundations
and deep foundations is the level of
complexity involved. “These jobs are
usually so big that they can’t pour all
the foundations at one time, and can’t
pour the slabs all at one time. So the
waterproofers have to sequence in
around the other trades.”
Scheduling Challenges
Stacy Byrd, National Products
Manager at CETCO, agrees that perhaps
the biggest challenge is the schedule and
complexity. “These jobsites will have
several trades doing multiple operations
in the same area, all trying to get done at
the same time,” he says.
“It’s not unusual to have
waterproofers on the job while excavation
is still underway,” he adds, “As soon as the
waterproofing is installed, the steel guys
are setting up rebar right behind them.
Often, other crews are already pouring
concrete. It doesn’t happen on all jobs,
but it’s becoming more common because
time is money. In some cases, they’re
installing in the waterproofing before
they’re even sure what the conditions are
on the other side of the site.”
“If the general contractor is not
pouring concrete, they’re not progressing
on the job; so the waterproofer doesn’t
have sole access to the area, and crews
are expected to get the job done while
multiple other construction operations
are happening around them.”
Other than the excavators, the
waterproofing contractor is the first on
the job. And until the concrete is placed,
jobsite traffic is going back and forth over
the membrane. “You will have workers,
job boxes, even heavy equipment
on whatever product the crews just
installed,” says Byrd. Waterproofers
must be prepared for the fact that the
membrane might be damaged by the
subsequent trades.
Differing Substrates
Deep foundation projects typically
do not use post-applied, positive-side
waterproofing (applied to the exterior
of the building after the structure
is in place) because post-applied
waterproofing systems are not feasible
with shoring wall construction. Instead,
contractors use blindside techniques,
where waterproofing is applied to the
shoring or soil retention system before
the structural walls are constructed.
Careful workmanship is required
as repairs can be extremely costly. “If it
is damaged or mis-installed,” Polk says,
“there might be 18 inches of concrete
with three separate mats of rebar in the
way of any repair.”
As foundations extended deeper
below grade, soil conditions change,
and may require different soil retention
systems. Byrd described a job in Canada
with soldier piles and lagging on the
upper part of the excavation, followed by
exposed bedrock that had been drilled
and blasted. On the bedrock, the wall
was stabilized and smoothed with a layer
of reinforced shotcrete.
On another
project, the lagging was so irregular
at the bottom of the shoring wall that
they applied shotcrete over the lagging
to provide an acceptable substrate for
installation of the waterproofing system.
Obviously, a good waterproofing
system must work reliably over a wide
variety of substrates.
Polk says, “The deeper you go, the
more likely it is that you’ll encounter
water tables or perched water. Tiebacks and walers are especially prone to
leaking, and require special attention.
In some cases, these walers are removed
as the waterproofing progressed up the
wall, but often, especially at lower levels,
they must be detailed and waterproofed
around.
“These conditions can be
difficult for all waterproofing systems,”
says Byrd, “both spray-applied and sheet
products.”
Polk says another solution he’s seen
is boxing out all the tiebacks. In this
system, the waterproofing is run four to
six inches into the box-out area. After
the concrete is in place, they’ll go back in
and de-tension the tiebacks, then inject
the area with bentonite or polyurethane
foam before permanently filling the box
with concrete patch.
In addition to having to work with
shotcrete, one-sided forms, soldier
piles, sheet piles, lag walls, tie-backs,
soil nails, blasted rock, grade beams,
piles, caps and so on, Polk points out the
uncertainty of some jobs. “Sometimes,
you may not know what you face
ELIMINATE WATER
PENETRATION
Cracks, joint failure and ineffective waterproofing in foundations subject to
hydrostatic pressure are major problems that result in leaking and concrete
deterioration. Whether for new construction or structural rehabilitation, Xypex
Crystalline Technology is a permanent and cost effective solution. Worldwide,
in both shallow and deep foundations, Xypex has proven to be highly
successful in preventing infiltration even under extreme hydrostatic pressure.
See us at WOC booth #S10414
www.xypex.com
Winter 2015
17
Careful detailing at joints and penetrations
is essential, like this junction between
the underslab membrane and the vertical
waterproofing applied over sheet piles.
because the excavation isn’t finished when you begin work.
Soil reports can sometimes miss conditions, like if a soil nail
punctures a lens of perched water. Or when a soldier pile hits an
unanticipated boulder and twists, which will require generating
a waterproofing detail for that specific situation.”
Byrd notes, “One problem is that often the shoring
contractor really is not concerned with the impact of the
shoring wall on the installation of the waterproofing system.
The waterproofing is not part of his responsibility or contract.
There are some projects where consultants get involved and
there’s better coordination between the trades, but often it’s left
to the waterproofer to find a solution.”
Keys for Success
Despite the wide variety of jobsite conditions and challenges,
Polk and Byrd say following a few key principles make this type
of project go more smoothly.
One of the most crucial issues is getting the sequencing
right at the pre-construction meeting. Polk recommends
It’s becoming common to mechanically fasten
cementitious board over the lagging to create a better
surface, eliminate gaps, and create a smooth transition
between the lagging and soldier piles.
double checking that solutions are in place for dealing with any
water that’s encountered. A construction dewatering systems is
almost always needed. “This is typically the responsibility of the
GC,” he says. In some cases a permanent dewatering system
is installed when the building is completed. In areas where a
high water table exists, the design will typically call for “bathtub
waterproofing” and let the building in as much as 15 or 20 feet
of water.
Byrd says job-specific details are also essential. “They must
be drawn up for the specific conditions that will be encountered
at that specific jobsite,” he says. “It’s not like a basement where
it’s a nice smooth, concrete surface and waterproofing and
drainage can be applied after the concrete foundation wall has
been constructed. Very few deep foundation projects are overexcavated.”
These details are typically drawn up by the manufacturer,
or in consultation with the manufacturer, then submitted to the
designer for approval, before being forwarded to the field for
installation. “You don’t want installers making field decisions on
Deep foundation jobs feature complex schedules
and congested jobsites. On this site, the
waterproofing and steel is in place before the
excavators have finished.
18
WATERPROOF!
the site that will affect the performance of the membrane,” he
explains. “So the manufacturer has to be extremely responsive
to the design team and provide the information they need in a
timely manner.”
Byrd says most waterproofers prefer front lagged timbers as
a substrate, because it’s easy to adhere to and relatively smooth.
He adds, “consultants are specifying cementitious board to be
mechanically fastened over timber lagging. It creates a smooth
surface, eliminates gaps between lagging boards, and smooths
the transition between the wooden lagging and metal soldier
piles.”
Product Options
There are a wide variety of different products in the
marketplace, made of different materials, that provide a quality,
reliable waterproofing system for this type of work. The
following guidelines are good advice in selecting a system:
As noted above, the system chosen must be able to deal
with a variety of substrates. Polk says, “Really, the key is to
have one component that will bond to a variety of substrates,
because if the installer has to switch between systems, it just
adds unnecessary complexity and expense.”
This component is typically a geocomposite or drain mat.
It isn’t part of the waterproofing system per se, but it acts as a
buffer between the waterproofing and the substrate.
Second, choose a system that has good manufacturer
support to help with details. “So many construction issues show
up on these jobs that require specialty details,” he says.
Epro markets spray-applied and composite blindside
systems that have been used with exceptional results. “The
deepest we’ve ever done is eight stories underground,” says Polk.
“We started at the bottom, and they built each level as they went
up.”
Byrd, at CETCO, says his company makes a few different
product lines for deep foundations. “In Southern California,
where there’s water and methane, CoreFlex 60 is commonly
specified and installed. The membrane overlap seams are
thermoplastic welded, and the membrane is durable enough
to be used in conjunction with structural shotcrete foundation
walls.” CoreFlex 60 can be used on both the shoring walls
and underslab to form a continuous waterproofing system. It
consists of a 60-mil thick, reinforced PVC sheet with an Active
Polymer Core (APC) layer integrally bonded. After installation
if water breachs the PVC, the APC layer will swell to seal
the water ingress. The APC is lighter, less permeable, more
expansive, and more resistant to contaminants than bentonite.
Other CETCO products used for waterproofing deep
foundations include Ultraseal, which is also an APC system,
but does not have welded seams; and Voltex, a well-known
bentonite-based product. S
Extremely Tear Resistant
»
»
»
»
Residential & Commercial Waterproofing
Air & Vapor Barriers
Water or Solvent Based
Crack Injection & Sealants
Rub-R-Wall® Waterproofing is a single component, spray applied membrane durable enough
to be offered with a limited, lifetime warranty
on new residential foundations. Rub-R-Wall
holds protection or drainage boards tightly
without mechanical fasteners.
www.rpcinfo.com
E
M
I
T
E
F
I
L
NTY
A
WARR
phone: 770.410.1545
Winter 2015
19
Photo Courtesy The Basement Doctor
These before-and-after photos show how proper
waterproofing, structural repair, and lighting
can transform below-grade living space.
Livable Basements
A
n increasing number of homeowners are choosing to
upgrade their basements. Whether it’s for use as an inlaw apartment, an expanding family, a recreation room
or married kids coming home, the demand for basement living
space is strong. Many waterproofers are taking advantage of this
profit opportunity to create comfortable, well-lit living spaces
that feel just as inviting as their above-grade counterparts.
The key is to use the right combination of waterproofing,
dehumidification equipment, and other technology.
Brett Oakley, CEO of Mar-flex Waterproofing & Building
Products, says, “We’re seeing a change in how basements are
finished. Builders need to be aware not only how to make the
home waterproof, but how to make it livable and consider issues
like accessibility and lighting.”
Safety First
Oakley continues, “So many people buy homes with
unfinished living spaces, and they don’t understand the safety
issues. Kids become teenagers, they move downstairs for a little
more space, and no one thinks anything of it. But egress is one
of the essential components of any basement living space.”
“I was a fireman for 27 years,” he continues. “Moisture
is one issue, but life is more important, which means every
basement needs to have egress windows. Every contractor
needs to educate customers in this way. I don’t understand how
homeowners will spend $50,000 on a basement remodel and fail
to put adequately sized windows and egress window wells in.”
Oakley notes that not only are these required by code
and common sense, but they also make the space much more
inviting. The increase in natural light, he says, removes the
dark, claustrophobic feeling that many old basements have.
Ron Greenbaum, a Ohio-based waterproofer known
as “The Basement Doctor,” says that after life/safety issues,
20
WATERPROOF!
structural concerns are the next priority. “Prior to finishing a
basement, all structural issues should be addressed as they will
not be able to be seen or inspected once the wall is covered,” he
says.” If the wall shows any signs of inward movement, it should
be supported to help prevent movement in the future.” This can
be done using traditional steel I-beams or modern carbon fiber
strapping.
Major cracks may need to be injected with epoxy (for
structural strength) or polyurethane grout (to prevent water
ingress) as well.
Greenbaum continues, “ In order to have a truly sound and
inviting basement all the issues must be addressed instead of
putting a temporary Band-Aid on them. You can’t just put up a
wall and think that by hiding the water and cracks, they’ll just
go away. A livable basement needs to be safe.”
Oakley says that while it may be costly to fix an existing
home, it’s often not as expensive as homeowners fear. “For a
severely leaking foundation, you’ll need to bring in heavy
equipment and re-do the waterproofing and drainage. But often,
if it’s just minor leaking, it’s possible to cut in an interior drain
tile that sits on the footing, between the slab and the foundation
wall, that will get that water out of the living space.”
Planning
To get the most out of the upgrade, begin by drawing out
the floor plan, and then determine the best way to utilize the
space. Figure out which windows will need to be enlarged or
if new egress windows need to be cut into an entirely different
area of the wall. Then, add artificial lighting.
“The proper amount of lighting is so important,” says
Greenbaum. “We typically install one can light for every 36
sq. ft. or so when finishing the basement.” He recommends
allowing as much additional natural light into the basement
as reasonably possible, using energy efficient windows and
window well enclosures which are designed to reflect light into
the basement.
Oakley prefers the polyethelene window wells, as they
don’t rust or corrode, and are there for the life of the home.
“Fiberglass is not a bad product,” he says. “They perform well
and have a really nice look to them, but some seem to be on the
thin side.” Oakley is of the opinion that the gavanized metal
wells, whether white or shiny, are not as appealing.
Whatever course is chosen, Oakley advises, “Make sure
it’s done according to code to ensure you’re adding value to the
home. Basement remodels can often be done quite economically,
because the space is already there.”
Keep Water Out
At some point in the process, waterproofing must be
addressed. Greenbaum states, “Most basement water problems
are the result of improperly maintained exterior items such as
gutters, downspouts, and grading.”
Oakley agrees. “ It’s not any one thing, but it’s a whole
system that works from the footer up, and you can’t cut corners.”
It starts with drainage tile or perforated pipe installed along
the footing. Oakley says his rule of thumb is the lower the
better. That water must be taken well away from the structure.
He continues, “ I prefer a positive drainage system over sump
pumps, but in some areas, like the Midwest, sump pumps are
always necessary.”
He feels that using drainage board only or dampproofing
is a major mistake. “You want a good waterproofing seal
from the top of the footer to the top of the wall.” He typically
recommends a solid rubber product, but says his company
will also use emulsion and solvent-based systems when they’re
better suited to the application.
Greenbaum says that in a few cases, he’s discovered that
basement water problems were unrelated to groundwater,
and instead came from plumbing leaks and water heaters. He
recommends installing drain pans under these units that drain
off to a drain or sump pump system.
“By using a great waterproofing product, and a great
drainage product, you’re preventing a lot of potential problems,”
Oakley says.
Humidity
Once liquid water is addressed, the plan should deal with
water vapor as well.
“It’s critical that when a basement is in the ground, it has a
good dehumidification system,” says Oakley.
Karl Osman, sales manager at SantaFe/ThermaStor, says,
“Basement finishing is an extremely fast growing market
right now, and when you talk about making that space livable,
are you paying too much for
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Winter 2015
21
dehumidification is a major part of that.”
He continues, “Due to the cooler temperatures down
there, it will naturally have higher humidity levels, even if the
waterproofing is functioning perfectly. Many homeowners will
spend $8,000 to $15,000 on finishing the basement, but if you
don’t control the humidity, everything you just put in there is at
risk. That unseen water is soaking into furniture, toys, corroding
electronics, and creating conditions for mold, mildew, and the
pests that are attracted to humidity such as bugs and rodents.”
Greenbaum recommends keeping the relative humidity
below 50%, and Osman agrees.
Some recommend keeping it even drier, but Greenbaum
cautions, “You do need some relative humidity, so don’t take
it too low. Really low relative humidity can also cause static
electricity.”
“About 60% humidity is where mold growth really takes
off,” Osman says.
As to the best method of addressing water vapor, Oakley
admits, “Every single basement is different. Whether the walls
are block or poured concrete, insulation, climate, waterproofing;
it all plays a role.” He continues, “Before you do anything,
address safety issues first. Then address the moisture problems.”
He finishes basements with enough air space behind the wall to
create air flow and ventilation to ensure mold growth doesn’t
occur.
The simplest solution is a stand-alone dehumidifier. These
come in different sizes to accommodate the variety of room
volumes and moisture levels. Osman says, “These can be set up
in multiple ways. If it needs to be out-of-sight, it can be located
in storage closet or utility room and ducted to the living space.”
These run on regular 120-volt power, and can be plugged
into any outlet, although Osman recommends a dedicated
circuit with a GCFI outlet.
To minimize maintenance, he also recommends attaching
a gravity-fed hose that drains into the sump pit, floor drain, or
HVAC water removal system.
The Santa Fe dehumidifiers, like most quality units, have an
in-unit humidistat that will automatically activate the machine
when humidity levels rise.
Greenbaum recommends a dehumidifier than doubles as
an air purifier. “It regulates the relative humidity and cleans the
air down to one micron,” he says. “These units remove dust,
dust mites, mold, and other airborne toxins.”
Greenbaum adds, “Even if you don’t plan on living there, it
may be worth looking into a upgrading. As much as 50-60% of
the air that you breathe in the upper levels of the home comes
from the basement and crawlspace. You cannot shut the door
and ignore these spaces. They will impact your quality of life
whether you ignore them or not.”S
WATERPROOFING
and so much more …
Pest Free
Ensures Comfort
Prevents
Dust Mites
Prevents
Musty Odors
and Mold
Property
Protection
Santa Fe
Dehumidifier
Crawlspace
or Basement
www.Santa-Fe-Products.com
Contact Karl Osman at 1.800.533.7533 Ext. 1862
ENERGY STAR® RATED
22
WATERPROOF!
5 YEAR WARRANTY
The solution to healthy,
comfortable living.
• High Efficiency
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NPMA MEMBER
EMECOLE
EMR MOLD REMEDIATION SYSTEM
DISINFECTANT
EMR Emecole Mold Remediator
EPA-registered to kill mold, mildew and other microbial
growth on common building materials. Disinfects and
kills contaminated surfaces within five minutes. Apply by
spraying or mopping.
CLEANER
EMR Surface Cleaner
Heavy-duty cleaning agent that removes tough stains
from microbial growth and extensive water damage from
common building materials. Non-corrosive and free of
bleach with a working time of 10 minutes.
PREVENTATIVE
EMR Preventative Coating
Forms a protective layer that inhibits microbial growth on
common building materials. A must-use in any basement
or crawl space whether mold development has previous
occurred or not, and in new construction.
50 E. Montrose Dr., Romeoville, IL 60446
800-844-2713
www.emecole.com
Photo Courtesy Nationwide Reinforcing
COMMERCIAL CARBON
FIBER REPAIR
By Bob Thompson
I
t has been nearly 15 years since
carbon fiber first made its
emergence into the civil engineering
arena. Today, more and more structural
engineers are using carbon fiber to
design a variety of structural repairs.
The most common use is retrofitting
existing structures that are either underdesigned for current use or to correct
failing walls or members due to design
or construction errors. Carbon fiber
has been used to repair bridge decks,
columns and beams, parking garages,
hospitals, tunnels, stadiums, culverts,
warehouses and many other steel,
concrete and masonry structures.
The reasons carbon fiber has
grown so popular with the engineering
community are due its amazing material
properties, ease of installation, and cost.
Aerospace-quality carbon fiber
strands have an ultimate tensile strength
as high as 700,000 pounds per square
inch (psi) and an ultimate modulus of
elasticity of 36 million pounds per square
inch (msi).
During manufacturing the carbon
fibers are impregnated or saturated with
epoxy to form a pre-cured plate. These
plates typically consist of 55% to 70%
carbon fiber which will result in a product
with nearly 10 times the tensile strength
of 36,000 PSI steel. Cross sections of the
carbon fiber plates are generally four
inches wide and 0.04 inches thick. The
24
WATERPROOF!
plates can be produced in lengths of 100
to 500 plus feet.
The American Concrete Institute
(ACI) provides guidelines for engineers
designing with carbon fiber. Unlike
steel, which will stretch somewhat under
a load, carbon fiber has a linear elastic
characteristic. This means that it will
not yield or stretch as long as it does not
reach its ultimate breaking strength. It
can be loaded and unloaded without
permanent deformation. It also has less
than 2% elasticity. ACI 440 takes these
properties into consideration and has
very specific design guidelines.
Because of these properties, carbon
fiber is transforming a broad range of
industries, and waterproofing is one
of them. It can make structural repair
easier and more profitable than ever
before, and has been used successfully
on residential, light commercial, and
industrial-scale projects.
Ohio Food Pantry
When Faith Mission, a privately
run shelter for men and women, started
renovation on their new food pantry
located in downtown Columbus, Ohio,
they were faced with a failing foundation.
Luckily for them, the local structural
engineering firm they hired to provide
structural upgrades was familiar with
using carbon fiber for foundation repair.
The engineering firm, SMBH, Inc.,
had established a relationship with
Nationwide Reinforcing reaching back
at least ten years, and had used their
Reinforcer product to repair many
foundations.
Nationwide Reinforcing Ltd. has
published design charts which provide
information on the correct material and
spacing for the repair. However, each
project is unique, and the charts must be
used by someone with experience and
training.
After careful evaluation, The
Reinforcer was chosen.
The fourinch-wide by 0.04-inch-thick plate was
selected to add the flexural strength
that the below grade walls were lacking.
Based on the height of the wall, the
backfill pressure and the strength of the
masonry block, the engineering team
determined that the Reinforcer units
needed to be spaced at two foot centers.
The walls had many obstructions
including a set of stairs and copper
pipes. These types of obstructions
would typically have to be removed and
replaced during most foundation repair
operations. However, by utilizing the
Reinforcer plates, the contractor was able
to perform all specified repairs without
the added expense of moving any of the
aforementioned obstructions.
Tecumseh High School near
Dayton, Ohio utilized carbon fiber
straps to correct a serious construction
deficiency. The masonry contractor had
left out some of the required steel during
construction. When this mistake was
discovered during the field inspections,
they were faced with finding a costeffective solution that would not delay
the opening of the new school.
The masonry contractor had
originally proposed cutting the block
and inserting the required steel and then
grouting the cores. This solution was
both timely and very expensive. The
design engineer remembered reading
an article about carbon fiber and began
researching the material on the internet.
He then contacted Nationwide
Reinforcing, to provide engineering
World Trade Center, NY commuter passageways
repaired and waterproofed with Kryton products.
Tecumseh High School
WorldWide AcceptAnce
by those With the Most
At stAke
KIM is the original crystalline waterproofing
Admixture, helps contribute to LEED
points and has more testing and approvals
than any other. KIM is also the only independently
proven Permeability Reducing Admixture for
Hydrostatic Conditions by the ACI.
Dry Concrete
Crystalline Waterproofing Specialists
646.404.7272 www.dryconcrete.com
www.kryton.com
Winter 2015
022014ad_V3.indd 1
25
24/02/2014 4:25:48 PM
design and analysis for the project. The
carbon fiber solution would ultimately
prove to be the right choice. It allowed
the project to stay on schedule without
any major disruptions to the other trade
activities.
Mich. Power Plant
We Energies is a utility providing
electrical service and natural gas to
Northern Wisconsin and portions of
Michigan’s Upper Peninsula. When
the walls in the boiler room at their
Marquette, Michigan plant started
experiencing cracking and bowing, their
engineers began looking for economical
foundation repair options.
They were faced with several unique
challenges: First they had an enormous
number of pipes, columns and beams
in close proximity to the walls. The
temperatures in the facility would reach
140 degrees Fahrenheit during the
summer months, and the length of the
26
WATERPROOF!
walls between columns and beams was
20 to 30 feet.
Engineers
at
Nationwide
Reinforcing, Ltd. prepared a solution.
A series of carbon fiber plates would be
laid in a grid vertically and horizontally
to provide the necessary strength. S
Bob Thompson is a graduate of Ohio State
University and is a licensed professional
engineer. Nationwide Reinforcing, Ltd.
trains and certifies contractors to install
their patented, proprietary carbon fiber
systems.
V, U S
A
S, N
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FE
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3-6
, 201
5 • S
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• L
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If you work in commercial construction then roll up your sleeves and get ready for World
of Concrete, the largest annual event specifically for concrete and masonry professionals.
More than 100 expert-led sessions—featuring hands-on training, interactive workshops
and continuing education opportunities—help you build skills in concrete repair, flooring,
project management, decorative concrete, finance, and much more. Sessions are
presented in both 90-minute and 3-hour formats. Look closely and you’ll see—World of
Concrete has the training you need to elevate your career and your business.
A selected participant in the International Buyer Program
www.worldofconcrete.com
Source Code: WM
Integrating Green Roofs with Solar
T
he term “green roof ” can cause some confusion. For
some, the term conjures up images of green vegetation
on a building’s roof. For others, it refers to the concept
of making a building’s roof green from an environmental
standpoint with reflective roofing or energy-creating solar
panels.
New evidence indicates that the “greenest roof ” is one
that combines a vegetated green roof system with roofmounted photovoltaic panels. Understandably, interest in these
combination systems is high, despite the complex design and
installation requirements. At least three companies in the
U.S. have a proven track record with these roofs, and they agree
that successful installation requires careful planning, the right
materials, and top quality craftsmanship.
Market Potential
Germany as competition for roof space between these ecofriendly installations increases.”
Educated at Penn State University, Hillis has over 25 years
of commercial roofing experience and is a senior estimator for
one of the largest green roofing installers in the Washington
D.C. area. The District of Columbia is leading the nation in
green roof construction, and is also a leading location for solar
installations.
We have witnessed the explosion in both green roofing and
rooftop solar,” he reports.
“Through 2012, the District of Columbia has installed
almost 1.5 million sq. ft. of green roofing.” When compared to
available roof space, that’s twice the amount installed in Chicago
and three times that installed in New York in 2012.” He predicts
the District will install an additional 2 million sq.ft. of green
roofing on public and private buildings by 2018, and may soon
compete directly with solar panels in the limited available roof
space.
“This competition between green roofing and solar is not
necessary as these installations are not mutually exclusive,”
he says, adding that both systems work more efficiently when
installed on the same roof.
Photos Courtesy Green Roof Technology
Jon Hillis, vice president at Prospect Waterproofing, refers
to the combination of green roof and solar by the acrynym
GRIPV, for Green Roof with Integrated PhotoVoltaics. He
says, “GRIPV systems integrate solar, or photovoltaic systems,
directly into the green roofing on a project. Although this
system is not prevalent in the US, they are being installed in
Photo Courtesy Live Roof
The Soka University Performing Arts Center roof combines green and solar. On
a recent 100 degree day, the green roof was 50 degrees cooler than the nearby
pavers, allowing the photovoltaic panels to perform significantly better.
28
WATERPROOF!
At first glance, it seems solar panels would deprive green
roof vegetation of rainfall and sunlight. However, rooftop
photovoltaic arrays can actually improve the performance of
both systems.
“The main benefit of a GRIPV system is the symbiotic
relationship between the PV system and the sedum plants,”
says Hillis. “If shade-specific plants are installed in the location
where the solar is being installed, the warmth of the solar
panels provides for a longer growing season for the plants and
the plants reduce the temperature beneath the solar module
allowing them to operate up to 10% more efficiently.”
ZinCo, a green roof supplier headquartered in Australia,
conducted a three-year field test comparing PV output on a
German warehouse roof. Some panels had a vegetaged roof
below, others a standard bitumen membrane. The data indicated
the GRIPV system was 4% more efficient.
Jorg Breuning of Green Roof Technology, who pioneered
the GRIPV concept, says actual performance gain is closer to
16%. He explains: “Heat is the enemy of energy production.
Any time atmospheric temperatures on a roof begin to rise, PV
[photovoltaic] elements lose their efficiency. They will actually
shut down if temperatures rise too high.” His company was one
of the first to investigate if they could counteract this negative
phenomenon by combining solar modules with an extensive
green roof.
What Breuning and others discovered was that through
transpiration of the plants, green roofs are significantly cooler,
enabling photovoltaic cells to operate at peak efficiency. This effect
is especially noticeable on hot summer days. Additionally, there
is evidence that green roof vegetation reduce the amount of dust
typically found on bare roofs. And less dirt on the photovoltaic
panels equals better performance and less maintenance.
As noted above, plants benefit from the arrangement too. The
retained heat of the panels keep plants warmer at night, which
means better growth and a longer growing season. The shadetolerant plants under the panels create areas of biodiversity,
where plants and animals adapted to less water and light can
thrive. And studies have shown a more diverse roof is a more
stable roof.
In addition to these benefits, a GRIPV system still has
the advantages of the component systems: Reduced demand
on the power grid, reduced urban heat island effects, reduced
stormwater run-off, and extended roof life.
Installation
Hillis say, “GRIPV should be seriously considered, and this
should be done in one simultaneous installation .” His reasoning
is that if a rooftop solar array is installed after completion of
the green roofing, the added cost of removing and reinstalling
the soil and vegetation can increase the cost of the photovoltaic
Photo Courtesy Live Roof
Benefits
system $1 to $3 per watt. These costs will vary depending on
the region, size of the project, soil depth, and plant replacement
costs, but may be enough to make these retrofits cost-prohibitive.
For this reason, he recommends installing a complete, turn-key,
GRIPV system from the beginning, whether it’s a green reroofing project or new solar installations on existing properties.
Fortunately, as GRIPV projects become more common,
manufacturers have begun offering products to simplify
installation. For instance, Green Roof Technology markets
Sun-Root System, modular green roof tray that includes
elevated solar panel mounts. Most solar panels can be fastened
directly to the modules. When covered with the prescribed
amount of growing medium, the soil supplies enough ballast to
hold the panels securely in place without the roof membrane
penetrations that would normally be necessary for anchoring.
ZinCo, the Australian green roof supplier, has developed a
similar system, which fits around the legs of the solar array. The
height of the Solar Base Frames creates enough distance between
the substrate layer and the solar panels to provide plants with
enough sunlight and rainwater, and like the other system, uses
the weight of the growing medium to hold the panels in place.
Others have successfully installed GRIPV systems using
traditional installation methods and careful detailing. The Soka
University project used the standard modules from LiveRoof.
Conclusions
As solar panels and vegetated roofs become more popular,
designers and developers should realize that these systems
are complementary, not competing. Combining rooftop
solar panels with a green (vegetated) roof can offer financial,
environmental and architectural benefits that may last for the
life of the building.
The energy savings provided by vegetated roofs, together
with the boost effect they give to photovoltaic performance,
can allow owners to enjoy not only the aesthetic and psychological benefits of a living roof but also significantly lower
energy bills. S
Winter 2015
29
On the Market
Emecole Mold Remediation System
Emecole, a manufacturer of concrete crack repair and
below-grade waterproofing products is marketing a new way of
eliminating mold.
The
EMR
Mold
Remediation System was
designed for contractors
servicing wet basements
and/or crawl spaces. In
many scenarios, contractors
encounter newly developed
mold while responding to a
water or moisture issue that
brought them to the job in
the first place.
The system features the EMR Emecole Mold Remediator,
an EPA-registered mold killer. After disinfecting, EMR Surface
Cleaner may be used for any leftover stains. It is also suitable for
water stains from flooding or seepage. For added peace of mind,
EMR Preventative Coating forms a protective layer on common
building materials to inhibit new microbial growth.
For more information, visit www.emecole.com or call (800)
844-2713.
2-in-1 Sump Pump
A new sump pump from Glentronics combines a powerful
primary and backup sump pump into a single system. The
PHCC Pro Series PS-C33 is pre-assembled for easy installation.
The
primary
pump
can evacuate 3,000 gallons
per minute (GPH) at 10’,
and the backup can pump
2,400 GPH at 10’, switching
automatically to battery power
when AC fails. The unique
monitoring controller detects
irregularities,
sounds
an
alarm, and pinpoints problems
and solutions on the control
panel. It also features remote
terminals for connection to a
home security system or autodialer and is designed for use
with wet cell or maintenance
free batteries.
For more information, visit www.Stopflooding.com or call
(800) 991-0466.
30
WATERPROOF!
New Membrane From Meadows
The PMPC waterproofing membrane from W.R. Meadows
is a weather coated, permanently bonded, semi-flexible
vaporproofing/waterproofing membrane.
The seven-ply
membrane includes an exclusive plasmatic core suspended
mid-point between two
layers of a homogeneous,
bituminous
material
and then sealed under
heat
and
pressure
between
liners
of
asphalt-impregnated felt
and a glass-mat liner.
(The PMPC moniker
stands for “pre-molded
plasmatic core.”) An
asphalt weather coat is
applied to the glass-mat
liner and covered with a polyethylene anti-stick sheet.
Russ Snow, building science specialist at W. R. Meadows,
says, “PMPC provides a positive, easy-to-install, economical,
true vaporproofing and waterproofing system for horizontal
applications. Properly applied, it stops moisture migration
in footings, concrete floors, and structural slabs. It exceeds
industry standards for puncture resistance, tensile strength, and
offers the lowest perm rating in the industry, less than 0.002
perms.”
For more information about PMPC, including data sheet,
application details, specifications, and project profiles visit www.
wrmeadows.com or call (847) 214-2100.
Liquid EPDM Membrane
A new liquid EPDM membrane is available. First
introduced at the 2014 International Roofing Show, Professional
EPDM Supercoat is formulated expressly for large roofing
contractors and distributed exclusively through highly trained,
select distributors. at the in Las Vegas earlier this month. Pete Rowan, national sales manager at Pro Guard Coatings
says, “Professional EPDM Supercoat is the culmination of over
20 years of liquid EPDM development.”
The products builds to a finished 20- to 30-mil-thick dry
film with a single coat, and can be used to recoat EPDM, PVC
and TPO membranes as well as metal, concrete and other roof
substrates.
It is reflective, energy efficient, and environmentally
friendly. A second lo-VOC formulation retains all the
properties of original product, and complies with SCAQMD
and other VOC limits. For more information email prowan@
proguardcoatings.com, or call 301-221-0468.
Ad Index
American Hydrotech
Boccia
Cetco
IFC
31
13
Dry Concrete
23
Emecole
23
Epro
EZ Breathe
Greenroofs.com
Hydro Channel
Infra-Red Analyzers
Insulation Solutions
Liberty Pumps
MFM Building Products
Nash Distribution
Nationwide Reinforcing
Rub-R-Wall
Santa Fe
Sporema
W.R. Meadows
Waterproof.com
Wegener
World of Concrete
Xypex
BC
9
30
26
10
30
3
11
21
5
19
22
7
15
6
15
27
17
Winter 2015
31

Deep Foundations Deep Foundations

Transcription

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