03.06 Orange Senior Center Floor Replacement AmendmentF °+
l oRPoq4Tt.!y.a
AGENDA ITEM
Ma 12 2020Y
TO: Honorable Mayor and Members of the City Council
THRU: Rick Otto, City Manager r
FROM: Bonnie Hagan, Assistant City Manager/Community Services ire tor
REVIEW: City Manage inance----
1. SUBJECT
First Amendment to Contract with Floor Tech America for the Orange Senior Center Floor
Replacement Project.
2. SUMMARY
An amendment for emergency work is required to remediate moisture in the concrete sub
floor that was found during the installation of new carpet in the Senior Center as part of
the Orange Senior Center Floor Replacement Project funded through the Community
Development Block Grant program.
3. RECOMMENDED ACTION
Approve First Amendment with Floor Tech America in the amount of$16,279 for Orange
Senior Center Floor Replacement Project and authorize the Mayor and City Clerk to
execute on behalf of the City.
4. FISCAL IMPACT
The total expenditure for this amendment is $16,279 and will be funded in Renovations—
Orange Senior Center Improvements (30122) through Community Development Block
Grant (310).
5. STRATEGIC PLAN GOALS
Goal 2: Provide for a safe community
b: Provide and maintain infrastructure necessary to ensure the safety of the public.
Goal 3: Enhance and promote quality of life in the community
a: Refurbish, maintain, develop and or expand public use places and spaces.
6. DISCUSSION AND BACKGROUND
In April 2019, the City Council approved the Orange Senior Center Floor Replacement
Project to receive funding through the Community Development Block Grant (CDBG)
program. The project includes replacement of carpet tiles and vinyl flooring on the first
ITEM 3 .D 1 OS/12/2020
floor of the Senior Center. In March 2020, City Council awarded a contract to Floor Tech
America (Floor Tech) to perform the work in the amount of$36,739.
The project started in April. As the contractor began to remove the old carpeting,
significant moisture at the surface of the concrete sub-floor was found. The building
exterior was inspected by City staff to try and locate where water may be infiltrating the
building. Staff could not identify a specific cause. To this end, it was determined that in
order to install new carpeting, a moisture barrier would need to be applied prior to the
new carpet being installed.
Given the fact that the remediation needed to take place immediately, the unplanned work
was defined as an "emergency" per Orange Municipal Code (OMC) Purchasing Code
3.08.020. If left unfinished, essential senior services could be "greatly hampered or
disrupted." Section 3.08.590 of this purchasing code, allows the City Manager to
authorize, in case of an emergency, to order repairs...of a public facility,...and procure
the necessary services for those purposes." Staff approved the emergency work and is
seeking City Council approval of the amendment pursuant to the OMC section referenced
above.
The additional work in the amount of $16,279 will be funded through the Community
Development Block Grant (CDBG) using the remaining project balance originally allotted
for administrative costs. No additional appropriation is needed.
7. ATTACHMENT
First Amendment to Contract
ITEM 2 05/12/2020
FIRST AMENDMENT TO
CONTRACT
CDBG Orange Senior Center Flooring Replacement FY 2019-2020
Bid No. 190-15)
THIS FIRSTAMENDMENT TO CONTRACT (the"First Amendment to Contract") is
made and entered into as of 2020 ("Effective Date")by and between the CITY
OF ORANGE, a municipal corporation ("City"), and FLOOR TECI3 AMERICA, INC., a
California corporation("Contractor"),with reference to the following.
A. City and Contractor entered into a Contract (Agreement No. 6960)dated as of
March 10, 2020,which is incorporated herein by this reference (the"Original ContracY'); and
B. City and Contractor desire to modify,amend and supplement certain portions of the
Original Contract by revising the Scope of Work and increasing the compensation.
NOW,THEREFORE, the parties hereby agree as follows:
Section 1. Defined Terms. Except as otherwise defined herein, all capitalized terms
used herein shall have the meanings set forth for such terms in the Original Contract.
Section 2. Cross-References. City and Contractor agree that all references in this
First Amendment are deemed and construed to refer to the Original Contract, as implemented by
this First Amendment.
Section 3. Revised Scope of Services. The Contractor's Proposal contained in Exhibit
A as referenced in Article 1 of the Original Contract, is hereby amended, modified and
supplemented to include the services described on Exhibit A attached hereto and incorporated
herein by this reference.
Section 5. Compensation. Article 3 of the Original Contract is hereby amended to
increase the total not-to-exceed compensation for the services to be rendered by SIXTEEN
THOUSAND TWO HUNDRED SEVENTY NINE DOLLARS ($16,279.05) and Article 3 is
hereby amended in its entirety to read as follows:
Contractor agrees to receive and accept the lump sum amount of FIFTY
THREE THOUSAND EIGHTEEN DOLLARS ($53,018.05) as full
compensation for furnishing all materials and doing the Work contemplated and
embraced in this Contract; also for all loss or damage arising out of the nature
of the Work aforesaid,or from the acts of the elements,or from any unforeseen
difficulties or obstructions which may arise or be encountered in the prosecution
of the Work until its acceptance by the City, and all risks of every description
connected with the Work, also for all expenses incurred by or in consequence
of the suspension or discontinuance of the Work,and for the well and faithfully
completing the Work, and for the whole thereof, in the manner and according
to the Plans and Specifications, and requirements of the Authorized City
Representative under them."
Section 6. Integration. This First Amendment amends, as set forth herein, the
Original Contract and, except as specifically amended hereby,the Original Contract shall remain
in full force and effect. To the extent that there is any conflict or inconsistency between the terms
and provisions of this First Amendment and the terms and provisions of the Original Contract,the
terms and provisions of this Pirst Amendment shall control and govern the rights and obligations
of the parties.
IN WITNESS of this Contract,the parties enter into this Contract on the year and day first
above written.
CONTRACTOR" CITY"
FLOOR TECH AMERICA, INC., CITY OF ORANGE,a municipal corporation
a California corporation
1
By:
By: Mark A. Murphy, Mayor
Printed Nnme:a..11 .+
Title: Pr"pS cn
ATTEST:
gY.
Printe Name: Ka.i' " 20•t
Title: V i PrvS/ e e 1-
Pamela Coleman, City Clerk
APPROVED AS TO FORM:
Mary E. Binning
Senior Assistant City Attorney
NOTE: If CONTRACTOR is a corporation,tlee City requires t/ie fnllowing signature(s):
1) the Chairman oJ1he Board, the President or a Vice-President,AND (2) the
Secretary, the Chief Financial Ojftcer, fhe Treasurer, a:Assistant Secretary or
an Assistant Treasurer. If only one corporate officer exists or one corporate
ojficer Irolds»ore tlean one corporate ojftce,please so indicate. OR
T/e co puru e ufficer nunie l ir u curpurule re vluliuri u uu[hw ized iu eii[er intu
this Agreement A cnpy nf fhe cnrpnrnle re,cnlutinn, certified hy the Ser.retnry
close in time to tlre execution of fhe Agreenrent,rrrust Le yrovided to the City.
2
EXHIBIT "A"
SLJPPLEMENTAL SCOPE OF SERVICES
Behind this page.]
A\
FIOOR TECH AMERICA
CHANGE ORDER PROPOSAL (COP)
cuscomer Name: City of Orange - Community Dev. pate: 4/16/2020
Project Name: Oran e Senior Center Floorin COP Number: 1
To:Program Manager PBuI MIIIeP FTA Project Number: 4110
From: Contractor Floor Tech America, II1C. Project Number:112820
Description of Work:
Per Unforseen Conditions Regarding Subfloor: Additional cost to supply and install
Koster VAP 1 2000 Moisture Vapor Control Systems to mitigate moisture penetrating
through the slab up to 100% RH. Price below includes shot blasting concrete, applying
Koster VAP moisture control product, and skim coat to achieve a smooth subfloor
surface. Labor is based off normal Journeyman labor rates. Material costs are based off
full units. Area covered is approx. 3,150 SF.
A. Contractor Cost of the Work:
S
Subtotal A: $
B. Contractor Cost of the Work:
Cost for Koster VAP 1 2000(5 units,includes tax) 4,297.90
Cost for Koster VAP 106 Primer(2 units,includes tax) 360.26
Cost for Ardex Feather Finish(75 bags,includes tax) 1,437.00
Labor Cost(96 Normal Journeyman Hours) 7,470.72 Subtotal B: $ 13,565.88
C. Contractor Fee: : zo°io Subtotal C: $ 2,713.17
Total=(A+g+C) Total: $ 16,279.05
The proposal would 0 Increase Decrease the Contract Time by calendar days.
The proposal does NOT affect the Contract Time.
By: Title Date
125 Mercury Circle, Pomona, CA 91768 T. 909-598-6328 F.909-598-6125
1 Updated: 6-03-08
KVSTER
Waterproofing Systems
Y TEM SNTRLSOO
S/NCE 1992
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Underlayment:
Primer:
K I ST E R Moisture Control System:
SLPremium
VAP/06ER KGSTER
VAP 11000
Contents
Contents 1
Introduction
Moisture Control5ystems 3
Why is moisture vapor an issue? 3
Where does the moisture vapor in floors come from? 4
What other factors influence floor moisture vapor? 5
How does moisture vapor harm flooring systems? 6
Moisture Contro/Systems
How can moisture vapor problems be controlled? 8
KOSTER V.4P 12000:Moisture l/apor Control Systems 8
Choosing the right moisture control system 9
Why is the vapor diffusion resistance of a moisture control system important? 70
Is the concrete slab dry enough to receive flooring? 11
Concrete testing:What else to look for? 12
Application
Application of KOSTER V,4P 12000 systems 14
Components of a standard flooring system 16
System for concrete slabs that are contaminated with water soluble silicates 17
Treating moving cracks and expansion joints 77
Treating non-moving cracks and voids 78
KOSTER VAP 11000 Systems Equipment for proper installation 18
Good to know
KOSTER Product Range 19
Contact Information 20
The informatiom m toined in this 6rochure is intended for use by trained professionals,is non-binding and does not ieleose the applimtoifiom
his esponsibilityfo a mneQ applrmtion thai takes into mnsideiation the specific conditions of the construdion site and the intended results of
the mnstruction piacess.The valid standards for testing and installation,acknowledged rules of technology as well as am technicol guidelines
must be adhered to at oll times.
VersionMor2015
Moisture Control Systems
Concrete is one of today's most important
building materials. Most floor slabs are made of
concrete. While conaete itself is permeable to P
moisture vapor, many modern flooring systems i
have very low moisture permeability and are
susceptible to problems caused bymoisture vapor.
The moisture control systems manufadured by F-•--'"
KOSTER are designed to be applied om m aete
to supress moisture vapor and the problems
associated with it.
Why is moisture vapor an issue?
Flooring failures due to water vapor in concrete flooring system can be blisters in epoxy coatings,
floor slabs have been plaguing the construction bubbles in sheet goods, unsightly staining at
industry for decades, causing millions of dollars seams, adhesive bond failure, loose, curling and
in damage to our economy. Typical damage aacking VCT,warped wood floors, and damp and
patterns indicating a serious failure of the mold infested carpets.
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a v, . :..:,.-
Re-emuhi cot on o a hesive...resu ng In own time
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ra„"
7ypita161istedng...co aining hlgh pH ronotive liquid
Where does the moisture vapor in floors come from?
Water is present in the ground everywhere, in water vapor will be able to penetrate the bottom
liquid form as ground water or attached to or of the slab and accumulate in the slab if it cannot
between soil particles and in form of water vapor evaporate. Slabs on grade in contact with moist
between the soil partides. While slabs on grade soil can also lead to capillary moisture transfer
are unlikely to come in contact with liquid ground into the slab. Basement floor slabs may come
water,they definitely will come into contact with into contact with liquid water if submerged in
the water vapor that rises through the soil. If a ground water.
below slab vapor retarder is missing o defective,
concrete floor
slab
soil
water
vapor ex
r y .,u
y
1 A Si
i "
Q
1
k`v
ground water water vapor
There are many sources of water
that can lead to damage of concrete floors.
Woter is an essential ingredient in conaete. of lower humidity,a stream of water vaporfrom
At the time concrete is made, it contains liquid the floor slab into the air is set in motion. This
water. While a part of that water is used in the process creates a moisture gradient within the
hydration of cement, another part of it remains slab; lack of a functional vapor retarder below
in the concrete and slowly evaporates over time. the slab allows moisture to continually re-charge
The more water that is added into concrete at the the slab.
time it is batched and during curing, the longer
it is going to take to dry to a condition that is Additional sources of water can be broken pipes
acceptable for a flooring system. under a slab, spills onto concrete, building use
such as kitchens and bathrooms, cleaning and
Air conditioning and heating systems maintenance, rain and snow, ambient relative
de-humid the air in buildings.Since vapor will humidity, and condensate forming on the
move from an area of high humidity to an area concrete.
What other factors influence floor moisture vapor?
Missing or damaged vapor retarders
y underneath slabs on ground prevent
1;,drying offloor slabs.
i Fast track construction often requires
r ! flooring applicators to install flooring
systems before the concrete has had
su cient time to dry.
9
Elevated slabs are frequently made with
light weight aggregate conaete in order
to be able to build slimmer structures.
When light weight conaete is made,
the porous light weight Aggregate is
saturated with water before it is added to
the mix. The water that is captured in the
aggregate of the concrete causes the light
weight concrete to need longer to dry to
an acceptable level than normal weight
concrete.
r i r .
Renovation offlooring systems:In the past,
many flooring systems were more resistant
to moisture and high pH.Flooring systems
often have a limited breathability and
the adhesives have limiYs regarding the
moisture and pH they can withstand. After
a new, low permeable flooring system is
installed, moisture vapor is trapped inside
the concrete. That sets the condition for
the moisture vapor damage mechanism to
start, eventually leading to failure of the
adhesive and the flooring.
Changing environmental conditions:
Moisture vapor conditions underneath a
floor slab on ground can change over time,
for example changing seasons,irrigation,or
heavy rainfalls over a long time period can
increase the soil moisture vapor condition.
How does moisture vapor harm flooring systems?
Concrete without floor covering
Concrete is a porous material. It allows moisture
moitture vapor
vapor to pass through it.1.
O
l
U '@ As long as moisture vapor can simply pass though
0= 'p the conaete, there will be a moisture gradient
U;.- d . with the mnaete drier near the top surface and
p more damp at the bottom.
p O O ` Moisture can transport salts of various types into
p
O< p p and through the concrete causing efflorescence
O/ p Q Kp on the surface of the concrete. This can be
d p detrimental to serviceability.
concrete
Concrete with f/oor covering
adhesive jlooring when a flooiing system is installed, it typically
Z, - / =has lower vapor permeability than concrete.
p O O q O b'p O The water vapor can no longer evaporate from
m pist ur'O Qp Q O p O the surface of the concrete. As a result, the
P O p O p 0 amount of water vapor that is present in the slab
pQ O U.Q will slowly inaease. This can be measured as an
p 'O increase in the relative humidity in the concrete
O c
fl O O c? Ca slab.
O
O p
c Q
p p Many types of floor finishes can be damaged
U p
n when exposed to high moisture over a longer
concrete period of time.
If concrete contains aggregate that is susceptible to Alkali Silica Reaction(ASR),the increased moisture
now present in conuete can cause the reaction to start,leading to damage of the concrete.
Microbial growth can develop under floor coveiings leading to health hazards for building occupants.
Coatings and adhesives can deBond when the moisture condition underneath the low permeable
flooring becomes high enough.
Deve/opment of high pH
high/yalkaline ao,;,,y Cured conaete contains soluble calcium,
j
condensate/ayer adhesive
potassium and sodium hydroxides. Once
dissolved in water, conditions develop with pH
readings up to 14.
o a
i
Q p 0 p O Qp, Adhesives that bond floor coverings to the
j moistu.e O O O Q i conaete can degrade and fail as a result of the
P°'\O O ,q 3 p p ' high pH and moisture present on the mnaete.O 0 p a
o Q Q Q
0
Q The high pH that develops at the surface of the
Q p O fJ
Q
O conaete due to moisture can also discolor floor
r
q pa - coverings.
Iconciete I
Development of blisters
highlyalkaline bliste.
odnesive Once high pH condensation has developed
conde sateiaye. underneath the surface of adhered low
4'
permeable floor covering,the adhesive is directly
v
exposed to the high pH conditions. Adhesive
00 Q o Q
o
j"oring can then degrade due to the high pH and high
o_ p,0
0 p c3 6 p,p moisture exposure.
moisture"' o 'g b o 6 O p O
vapor O'o ,
o
O c"2 o O The time frame in which this distress takes place
p O O o p depends on vapor drive and the mmposition of
0 0 , o the concrete. The liquid in blisters can have a pH
p D"O of 14.
O
cooc.ete Typical for this damage mechanism is that it
usually takes 3 to 6 months for adhesives to
deteriorate.
How can moisture vapor problems be controlled?
If test results indicate an elevated moisture vapor alternative. In most cases the installation of a
condition in the concrete, something needs to moisture control system is the only solution.The
be done to be able to install the desired floor moisture control system blocks rising moisture
coveiing without producing a failure.Even if the vapor, and prevents adhesive and flooring fiom
concrete slab is not exposed to a constant source coming in contact with the high pH that develops
of moisture, drying of the slab may take many in the conaete.
months oryears.Usually that is not an acceptable
r -
KOSTER VAP 12000:
Moisture Vapor Control Systems
Successfully introduced to the flooring market the sole purpose of protecting flooring systems
in 2001, KOSTER V.4P 1 2000 systems have an against moisture vapor damage. KOSTER V,4P I
impressive track record over more than 10 years 2000 materials have been specially designed to
with thousands of satisfied customers. KOSTER provide successful long-term solutions even in
VAP I 2000 systems have been developed for dificult scenarios:
KOSTER VAP/2000 systems withstand a permanently elevated
moisture condition up to 100%RH
KOSTER V,4P 12000 systems resist a sustained exposure to pH 14.
KOSTER V,4P 12000 systems provide a high degree of user friendliness due
to their ease of installation and one coat application.
Choosing fhe right moisture control system
No two flooring projects are the same, and KOSTER VAP 1 products have an outstanding
each has unique technical challenges. vapor diffusion resistance. While all of
KOSTER, the specialist in the KOSTER's V,4P 1 products have always been
field of moisture vapor control systems, has low VOC and low odor, KOSTER now has
developed reliable systems that protect flooring vapor suppression products that are zero VOC:
from damage. These unique formulations are KOSTER VAP 1 2000 and KOSTER
100%solid epoxy, contain no fillers and are one VAP 1 2000 F5. The test certificates that show
coat systems. The materials can be applied to LfED compliance are available upon request.
green concrete after 7 days,allowing for the fast The available systems differ from each other
tracking offlooring projects. KOSTER VAP 12000 mainly with regard to the curing times:
systems have been formulated to withstand KOSTER VAP 1 2000 (12 hours), KOSTER VAP I
100%relative humidity(RH)(ASTM F2170)and up 2000 FS (fast setting 4-5 hours),for overnight
to pH 14.installations, KOSTER VAP 1 2000 UFS (ultra-
fast setting, 3 hours)for very fast installations.
KOSTER Moisture Control Systems
have a successful track record of over 10 years!
7ime to proteed with flooiing' 12 hours 4-5 hours 3 hours
I I
Vapor d sion resistance in N" 144.960 172.778 735.296
Relative humidity warrants to 700%RH
Layers True one coat rystem
Fort tracking offiooring projects Kf15TER VAP I 2000 rystems applicotion to green contrete at the earliest after 7 days
LEED points(fQ Credit)4.2 1 7 1
Areas of application Industrial focilities Retail stores
Schools Hozpitols
Sports facilities Warehouses
Residential buildings
Application training required Yes
Coating curing time may vary due to ronciete mndition&temperature
Calculated average values on the basis of test results by CTL Group acmiding[o ASTM E96
i
Why is the vapor diffusion resisfance of a
moisture control system important?
Moisture vapor transmission iates are measured the factor by which a material is more resistant
by standardized test methods. The vapor diffusion against water vapor then air with the same
resistance is expressed as "µ-value': The N-value is thickness.
A moisture control system has to reduce the amount of moisture
vapor to the level that the finish floor covering can tolerate.
adhesive flooring adhesive flooring
N=26.000
N=26.000
µ=150
µ=I50 KOSTER
144.960VAP1k-
1000
N=100 W.,;,- .
i
J N=100
tontrete
w,,. concrete
Typical dry concrete has a vapor diffusion To prevent this damage mechanism, a moisture
resistance of N=100.For a 10 cro slab this equals control system has to be installed directly onto
an equivalent air layer thickness of 10 m. Many the concrete before the flooring is installed.
floor coverings have a much higher diffusion This moisture control system has to bond to the
resistance to water vapor.Among floor coverings, concrete despite moistuie and high pH. It also
rubber flooring stands out because of its very has to reduce the amount of moisture vapor that
high diffusion resistance. Several manufacturers passes through it to a level that the flooring and
of rubber flooring state that their products have adhesive can tolerate.
a vapor diffusion resistance of approx.N=26.000.
Fora 1 mm floorcovering this equals an equivalent The KOSTER V,4P I 2000 moisture control system
air layer thickness of 22,1 m. can do all of this. It withstands the moisture
and high pH that develops underneath it and, if
As an example, let us consider the following installedat40og/m=,itdeliversavapord usion
flooring system: Rubber flooring bonded with resistance which is considerably higher than that
an adhesive directly to a slab on grade made of the rubber flooring used in the example. The
of concrete. The concrete slab - which has a amount of moisture vapor which the moisture
diffusion resistance of N = 100 - allows much control system allows to pass through it is lower
more water vapor to pass through than the than the amount of moisture vapor that the
rubber flooring does-which has a N=26.000.Of rubber flooring allows to pass through.
the 100%of water vapor that passes through the
10 cm concrete slab over a certain period of time, Flooring manufacturers publish the maximum
less than half can pass through the 1 mm thick acceptable moizture levels for their products
rubber flooring over that same time period. The in their technical literature. In order to protect
remainder of the moisture vapor accumulates a flooring system, a vapor control system must
under the adhesive and the rubberfloor covering. reduce the amount of moisture vapor that it lets
The high levels of moisture and the high pH that pass to meet the given requirements.
develop degrade the adhesive and lead to a floor
failure.
Is the concrete slab dry enough fo receive flooring?
8 days is often cited as the minimum length of the flooring manufacturer's guidelines and the
time for concrete to"cure"and develop strength. industry standard ASTM F710 should be adhered
This time period of 28 days is often incorrectly to,which state:`;411 concrete slabs shall be tested
interpreted as the time necessary for the concrete for moisture regardless of age orgrade level"
to dry sufficiently to receive a flooring system.
There are several tests that can be used to
As a rule of thumb: If Type 1 cement waz used, quantify how much moisture is in a floor slab.
the drying time for a concrete slab in a climate The relative humidity (RH) test is currently the
controlled environment is approx.one month per most widely accepted test and has become the
2.5 cm thickness.For a standard 70-15 cro slab the industry standard while the calcium chloride
drying time would consequently be approx.4—6 moisture vapor emission rate (CaCI test is
months.being phased out. Relative humidity data is not
comparable to calcium chloride test results.
Several factors can extend the drying time. To
accuratelydetermineafloor'smoisturecondition, The RH probe test according to ASTM F 2170 is
conducted as follows:
The relative humidity test For slabs on ground a hole with a depth of
a 40% of the slab's thickness is drilled. Probes
are placed in the borehole and the results
are read after an equilibration time of at
least 72 hours. The relative humidity test
determines relative humidity in the slab.
Three tests should be carried out for the
first 100 m1 with 1 per additional )00 mz.
The test results according to ASTM F2170
should not exceed the RH specified by the
flooring manufacturer. For links to current
floor covering and adhesive RH limits, see
www.RHspec.com.
Less impact of ambient conditions due to measuring inside the conaete
Becoming a more and more popular testing method,flooring industry accepts RH testing
Easy to understand for project participants(easy to use for non-trained personnel)
Moisture profile of concrete possible,when measuring at different depths
RH tests reveal moisture conditions deeper in the concrete
RH probes can quickly re-measure slab moisture conditions
Moisture testing should be carried out by often not budgeted expenses.Therefore moisture
independent and certified experts. Proper vapor problems should be anticipated during
testing requires background knowledge and the planning phase and hence be part of the
experience,so that all project participants can be specifications. Flooring contractors should be
assured of the quality and objectivity of the test especially aware of this topic and, if a moisture
results. This is importont, as elevated moisture control system is not specified, talk about this
levels in the concrete can cause delays in the topic as soon as possible with owners and
construction schedule or require additional, planners-in everyone's interest.
9; I
Concrete tesfing: What else to look for?
When dealing with new concrete, sufficient and comprehensive information is usually not
reliable information is usually available. In new available.Substances that have a negative effect
construction, usually the concrete mix design is on the bonding of the flooring system may have
available as well as information about curing beenintroducedtotheconcreteovertime. Ifsuch
compounds used. substances are present in the concrete that is to
be coated they can be evaluated by analyzing a
When dealing with older concrete, reliable sample of the concrete.
The mix design can be reviewed and • Chemica/ Ana/ysis is used to determine I
evaluated for problematic ingredients that''i if contaminants such as Sodium and/i
can cause bonding problems for topically or Potassium rich metasilicate residues''
applieG vaporsuppression products.and byproducts (commonly applied as
curing compounds, surface densifiers, and
Topically applied curing compounds can act hardeners), sulfate-rich surface precipitates,
as bond breakers. and excess chloride salts are present in the
concrete.
Adequatedryingtimefortheconaeteshould I
be built into the construction schedule I • Thin Section Petrography Ana/ysis is',
and moisture testing should be canied out
I
routinely used to find out if ASR or other I
before any flooring is installed. de/eterious constituents may be present in
concrete.
Infrared Spedroscopy and GC-MS are I
used to identify and to determine if
I there are organic contaminants (e.g.
oils, grease, etc.) in the conoete, that Icaninterferewithbondingofthe ,
moisture mntro/coating. iI,
Reference: New Meadowlands Stadium, New Jersey
The New Meadowlands Stadium is
today called Met Life Stadium. It is
located in East Rutherford, New lersey
and serves as a venue for the New York
Giants as well as for the New York Jets.
It is the on/y NFL stadium shared by
two teams. It provides seating for a
maximum of 82,566 people.
Construction started in 2007 and
finished in 2010, when it became
successor of the former Giants stadium.
Construction costs add up to a total of
approximately$1.6 billion.
KOSTER provides reliable solutions
even in difficult cases.
Core testing
Core testing means that a piece of concrete is
removed from the top of the slob approx.50 cm
in diameter and 50 cm in depth and sent to a
suitable laboratory for analysis. The core should
be removed dry, meaning no water should be
used in the drilling process to cool the diamond
drill.
Based on the results of the lab analysis,the KOSTER
technical staff can recommend the right system
for the specific projects. KOSTER holds frequent
seminars on moisture vapor control systems
for all interested professionals: applicators,
engineers,architeds,general contractors,facility
managers,etc.
The ease of use and the long term track record
for a broad range of applications are the main
success factors of KOSTER VAP 1 2000 systems.
Even in difficult cases, KOSTER provides reliable
solutions.Our customers benefit from more than
20 years of experience in the field of moisture
vapor control systems.
Our technical team provides detailed pre job KOSTER technical staff can help review the
checklists and helps to identify possible problems concrete mix design before a KOSTER vapor
during the planning phase, recognize relevant control system is applied.
conditions,and evaluate test results.
The tightly scheduled construdion
required a reliable Moisture Control
System for the protection of subsequent
flooring systems.
The contractor decided to go for a high
quality Solution: KbSTER VAP 1 2000.
All concrete basement slabs and upper
floorslobs were protected
KOSTER American Corporation was
awarded the Starnet Prefened Vendor
2011 for this project.
Application of KOSTER VAP 12000 Systems
Testing of the substrate r
P
moisturetesting/coresamples): f '
S, ,
w.+ '`•,:
KOSTER recommends testing to determine t '-"-''t-'= '
ii.:>'.:;.',.,,
r
the moisture vapor mndition in the mncrete. r•`ya'..." .-;.
Moisture testing utilizing RH probes in situ
Y;
tests (ASTM F- 2170) is considered the industry
standard. Calcium chloride tests (ASTM F-1869)
have been used for this purpose in the past but
these are being used less.
Substrate preparation:
o p; a,
r;
n=.F Concrete substrates to receive KOSTER VAP 1
i
1 i`' I '2000 systems must be structurally sound,
solid, absorptive and meet acceptable industry
standards as defined in ACI Committee 201
Report "Guide to Durable Conaete" Surfaces
must be free of adhesives, coatings, curing
compounds,concrete sealers,efflorescence,dust,
grease,oils,and other materials orcontaminants
that may act as a bond breaker. The concrete
surface must be at least 3 °C above the dew
point" temperature. Avoid application in a
low dew point atmosphere, when the ambient
relative humidity is above 95% or the conaete
surface is wet.
Ia5hot blast the substrate to an ICRI Concrete
Surface Profile (CSPJ 3 to 4. Grinding is
permitted only in areas inaccessible to shot
blasting orforedging purposes.Upon completion
of the shot blasting and grinding, the concrete
slab must be vacuumed free of all dust,dirt and
i as *debris prior to the installation of KOSTER VAP 1
I 2000 systems. Do not use sweeping compounds
l f'.`,
as they may contain oil.
R ,. ..w
Mixing: A
Pre-mix the A component. Then pour
the e mmponent into the short-filled A
component mntainer while continually
mixing.
Mix using a slow speed electric mixei(<400
RPM)and "liffy-type"mixing paddle for 3
minutes.
s ew
I ,
4
K T A
Definition:The dew paint is[he tempemture,at which,in dependence of[he rela[ive humidity water vapar pressure),condensatian of water vapor takes
place.The dewpoint is reached at a relative humidRyof IOOY,which means that the saturation vaporpiessure of water is hit."
Application:
Pour the mixed material onto the substrate
immediately after mixing. Completely empty
the mixing container.
e
wu ..t
KOSTER V,4P 1 2000 systems are applied in one
coat. After being poured onto the concrete
the material is spread using a notched mil
squeegee.
The material is then backrolled using a 10
mm nap enoxy rated roller, preferably at a
right angle (90 degrees) to the direction of the
squeegee application. Thereby the product is
evenly distributed with no missed areas.
Coverage:
Minimum coverage at CSP 3:400 g/m=
If standard concrete prepared to a CSP 3 is coated resulting in a su ciently thick, continuous layer
with KOSTER VAP 11000 at 400 g/mz, the cured needed to achieve a sufficiently low permeability.
coating can be expected to have a layer thickness
of approximately 036 mm. A rougher surface Testingshowsthefollowingrelationshipbetween
profileand/oraporousorabsorptiveconuetewill coverage, layer thickness and vapor diffusion
require the use of more material or a second coat resistance:
400g/m' 036 5,=52,1m 5,=62,2m Sd=48,7m
SOOg/m' 0.45 5a=65.2m Sa=77.7m Sa=60.9m
N=144.960 µ=171.718 N=135.296
Calculated average values on the basis of test iesults by CTL Group acmrding ta ASTM E96
Next/ayers KOSTER VAP 12000 coatings must not be exposed
Prior to the installation of a subsequent flooring to direct sunlight for more than 48 hours after
system, the cured KOSTER VAP 1 2000 systems application on concrete . If installing MMA's
must be clean and free of all dust,dirt and debris. or PMMA's, the maximum recoat window is 48
Sanding is not required. The maximum recoat hours after KOSTER V.4P 1 2000 systems have
time is 24 hours.KOSTER VAP 12000 products do cured.
not develop an amine blush and can be re-coated
or covered with primer and underlayment at KOSTER VAP 12000 systems may only be applied
later ages as long as the coating surface is clean. by KOSTER trained and approved installers.
Components of a standard flooring system
KOSTER VAP / 06 Primer for cementitious
underlayments
Installers"biggestconcernswithnonporoussubstrate • Nomixingrequired,single
primers are usually time and money. component
M-~~That is one of the major reasons why • Rapid drying
KOSTER developed the KOSTER VAP 106 Excellent bonding
Primer.Thisproductisaonecomponent WaterandpHresistant
primer, specifically designed to bond VOCcompliant
KC'3TER to cementitious products, providing Waterbased
maximum adhesion between non • Solventfree
porous substrate such as KOSTER V,4P Technica/data:
1 2000 and the cementitious leveling pp kaging: 9.5 kg jerrycancompound.
Coveragerate: 70-100g/m
KOSTER VAP 1 06 Primer is a water
working time: approx.3 hours
based, solvent free system for
at2
priming KOSTER V,4P 1 2000 moisture
Drying time: 30 Min—1 hour
mitigation systems,terrazzo,maible,metal decking,
at 2T C
ceramic, and quarry tile prior to the installation of the material have set a standard for non-
of cementitious products such as underlayments porous substrate primers in the industry.
or separation screeds. The combination of quality,
ready to use packaging, and the rapid drying time
KOSTER SL Premium-cementitious underlayment Self leveling
KOSTER SL Premium is a high quality,fast • Fast curing(rapid strength)
setting, fiber reinforced, low shrinking •
Low shrinkage
KdSTEA underlayment.It provides a smooth,level • For all major flooring systems
surface ready to receive flooring systems. • Tenacious bond to substrate
1 KOSTER SL Premium accepts all major • Can be pumped or poured
Il floor coverings and is compatible with • Singlecomponent
f
most adhesives. It is resistant to abrasion Technical data:
and wear.If the underlayment is installed pa kaging: 25 kg
onto smooth, non absorbent substrates Compressivestrength: 40N/mmI
such as a KOSTER V.4P 12000 coating, the pfter 28 days
substrate must be primed with KOSTER yyorking time: approx.20 min
VAP I 06 Primer.Absorbent substrates such at Z=
as concrete are primed using the KOSTER Foottraffic: afterapprox.4h
SBBondingEmulsion. ReadyforFlooring: afterapprox24h
Sysfem for concrete slabs that are contaminated with
water soluble silicates
KOSTER Isolation Barrier Underlayment
Silicates are widely used as curing compounds, KOSTER Self-Cevelling IB is applied directly to the
in floor polishing, as densifiers, as conaete shot blasteQ concrete. It aeates an isolation
additives. When water soluble silicates are barrier between the substrate and the moisture
present in concrete at a certain concentration, vapor reduction system. KOSTER Self-Levelling
they need to be removed mechanically, (e.g. by IB is permanently tolerant to moisture and high
grinding or shot blasting). Often, even that is pH,and provides a barrier against contaminants
not sufficient. In such cases such as unreacted water soluble silicates. The
KdtTiN the isolating underlayment product has self-levelling properties which make
i KOSTER Self-Levelling IB it easy to apply. KOSTER V.4P I 2000 systems are
must be installed before applied on top of the cured isolation barrier after
y the flooring system can be preparing the surface by shotblasting.
applied. KOSTER Self-Levelling
B can thus be used to avoid
excessive, time consuming,i
and messy concrete iemoval.
Provides isolation from contaminated
concrete i
Withstands permanent high pH
Resistant to re-emulsification i + I
Se/f-levelling properties p"
Specially designed for
KOSTER VAP 12000 systems
Technica/data:
Packaging:25 kg bag
Coverage rate: 2 kg/m/
mm layer thickness
Compressive strength: 40 N/mmz
after 28 days)
Pot life: 10 Min
Resistant to foot traffic: After approx.4 hrs.
Treafing moving cracks and expansion joints
KOSTER Joint Sea/ant FS-H
Moving cracks and expansion joints must be filled High mechanical load capacity
with a material that can follow the substrate Good chemical resistance
movements elastically. A joint waterproofing •
must allow for movement Technical data:
in the construction without Max elongation at break: approx.15%
a causing damage to the ShoreA-hardness: approx.35
construction itself. Moving Consistency:Castab/e,
joints up to a width of 35 Se/f-leveling
mm can be waterproofed Pot life: approx.20 min
with KOSTER loint Sealant uring Time:approx.24 hrs
FS-H, which is a self-leveling,
rubbery-elastic sealing horizontal joints in heary construction,
compound with high chemical resistance. foundations, waste water treatment plants,
Therefore, it is an ideal material to waterproof garages,tunnels,etc.
The expansion joint must be installed so that the
KOSTER loint
joint runs through the entire flooring system, KOSTER Sealant FS-H
KOSTER LF-VL
including all final floor coatings such as e.g. VAP 12000
KOSTER LF-VL. The prepared joint flanks are backing
coated with KOSTER VAP 1 2000. Allow KOSTfR rod
V,4P 1 Z000 to cure for a minimum of 4-12 hours
depending on the product)before installing the
backing rod and the joint sealant.Do not use the
l , IprimerifthelointSealantisinstalleddirectly
onto the vapor control system.
See also the KOSTER Brochure on "Waterproofing r
Construction loints."
Treating non-moving cracks and voids
Non-moving cracks and voids should be KOSTER VAP 12000
completely cleaned and repaired using KOSTER KOSTER VAP 1 2000 mixed
VAP 1 2000 mixed with KOSTER with a thickening agent concrete
a6s,ea Thickening Agent.
f Chase with a thin diamond blade or t`."
11 angle grinder,do not widen or deepen
A more than necessary. Cracks on Z
existing conaete slabs that may be
i contaminated should be cut out 10 x
1 10 mm to remove the contaminants
M from the side walls.KOSTER VAP 12000(brush application). Then the
crack is filled using a mix of KOSTER Vl1P 12000
First,the prepared crack is primed with and KOSTER Thickening Agent.
KOSTER VAP 12000 Systems
Equipmenf for proper installation
Squeegee Kit Squeegee Frame and
Squeegee Blades
For the application of KOSTER V,4P
1 2000 moisture control systems To meet the applicators
a notched squeegee is used. needs and the required layer
Squeegee kits provide everything thickness, proper tools are
needed to spread resins in order to needed. It is important that
ensure a uniform application of the suitable squeegee frames,
material onto the substrate. width approx. 60 cm) and
notched squeegee blades
A typical squeegee kit should are used, providing a layer
include: thickness of 0.4 mm.
2 Handles
2 Squeegees width approx.60 cm
2 Replacement blades
1 Chip brushes 7.5 cm
1 Pairs of latex gloves
KOSTER Product Range
Q Waterproofing systems j Coatings
easement,tank,and area waterproofing Floor and corrosion protection coatings,
Q Masonry
moisture control systems
Restoration of masonry,anti mold systems Q loint sealing
m Injection+systems
loint sealants,joint tapes
Crack injection and aack repair systems Q Wet room waterproofing
Q Concrete protection and repair
Conaete and mortar additives Q Facade protection and paints
m Self leveling underlayments Q Roofing membranes,roof waterproofing
Self leveling mineral underlayments,floor patching
materials,corresponding primers Accessories
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KOSTER BAUCHEMIE AG develops,produces and supplies a comprehensive range of special construc-
tion materials in the areas of waterproofing and concrete repair.Being founded in 7982 in Germany,
the KOSTER Group consists meanwhile of 24 companies which are represented in more than 45
countries.It is our policy to offer construction materials of highest quality,durobility and general
performance.
r
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Service you can depend on
With our service and distribution network in many
a_
countries world-wide we can offeryou
professional advice and technical support
immediately and on the spot.Your
a . required waterp oofing materials can
be delivered promptly and will protect
your property efficiently and lastingly.
Forfurther information,please contact:
KV ST E R y gpUCHEMIE Ij
P f 9Y L°`Water roo in 5 stems H44E' T..+o.
KOSTER BAUCHEMIE AG Dieselstraf3e 1-10 D-26607Aurich/Ge many
Phone:+49(4941)9709-0/Fax:+49(4941)9709-40 info@koster.eu www.koster.eu
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Chris Roarick
To: Rick Robins
Subject:RE: Koster Current VAP Pricing_FTA 2019
From: Rick Robins<rick@wmcproducts.net>
Sent:Wednesday, May 8, 2019 225 PM
To:gregfta@gmail.com
Cc:chris@floortechamerica.com;adrienne@floortechamerica.com;david@floortechamerica.com;
karrie@floortechamerica.com
Subject: Koster Current VAP Pricing_FTA 2019
Importance:High
FTA Team,
As we continue to grow and purchase in bulk we want to pass our savings to you.
WMC is thankful foryour business and years of loyalty.
Please see your new Koster pricing effective immediately.
6 Gallon Kits(12 Hour Cure)$785.00
2.4 Gallon Fast Set Kits(4 Hour Cure)$325.00
2.4 Gallon Ultra-Fast Set Kits (2 Hour Cure)$365.00
2.5 Gallon VAP 106 Primer(1 Hour Cure)$164.50*Same
10 Ibs. Bag of Ardex Feather Finish Skim Coat$17.00
50 Ibs. Bag of LevelStrong Cement/Self-Leveling$27.50(Will be dropping off samples soon)
Thank you again!
Rick Robins
Water Mitigation Concepts—Koster American RM Lucas Surface Engineered Technologies
2900 W. Pendleton Ave Santa Ana CA 92704
Mobile:(949) Z93-3540 AZ Office:(602) 282-0310 SD Office:(619)784-3108 LA/OC Office:(714) 923-1027
www.wmcnroducts.net Distributor and Manufacturer's Representative
KV ST E R S
warerproofrng5ystems
This message contains confidential information and is intended only for the individual named.If you are not the named addressee you should not
disseminate,distribute or copy this e-mail.Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete
this e-mail from your system.E-mail transmission cannot be guaranteed to be secure or error-free as information could be intercepted,corrupted,
lost,destroyed,arrive late or incomplete,or contain viruses.RM Lucas,Koster American Corp,Surface Engineered Technologies and/or Water
Mitigation Concepts,LLC.therefore does not accept liability for any errors or omissions in the contents of this message,which arise as a result of e-
mail transmission.
1
ARDEX Feather Finish
Ar(m) Units(it) Units(m)
Area to be covered (ft2) 3150
Application Bags Units
1/16" 10 Ib bag 48
1/8" 10 Ib bag 95
1/4" 10 Ib bag 189
3/8" 10 Ib bag 284
1/2" 10 Ib bag 378
Calculation of coverage is approximate. Actual coverage will vary
dependng on jobsite conditions
For specific product estimation, please contact your local ARDEX
i