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1 - GENERAL |
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1.1
RELATED DOCUMENTS |
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A. |
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Drawings,
documents, and general provisions of the Contract, including, but
not necessarily limited to, General Conditions and Division 1 Specification
Sections, apply to this Section. |
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B. |
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Related
Sections - Coordinate work of this Section with work of other Sections
to properly execute the work requirements and maintain satisfactory
progress of work in other Sections. |
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1.
Section 03300: Cast-In Place Concrete installation and curing requirements
according toACI302. |
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2.
Section 09620: Specialty Flooring, installation requirements. |
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3.
Section 09640: Wood Flooring, installation requirement. |
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4.
Section 09650: Resilient Flooring, rubber, sheet and vinyl tile installation
requirements. |
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5.
Section 09660: Static Control Flooring, Installation requirements. |
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6.
Section 09670: Fluid Applied Flooring, Installation requirements. |
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7. Section 09680: Carpet, installation requirements. |
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1.2
SUMMARY |
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A. |
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This
Section includes the furnishing, testing, and application of systems
for the reduction of moisture vapor transmission and alkalinity control
for Interior concrete slabs requiring the installation of VCT, vinyl
flooring, rubber flooring, wood, carpet, and/or epoxy flooring systems. |
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1.3
SUBMITTALS |
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A. |
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General:
Submit each item in this Article according to the, requirements and
Conditions of the Contract In Division 1., Specification Sections. |
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B. |
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Product
data for each type of product and process specified, which shall Include: |
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1..
Manufacturer's Specification
2. Installation Instructions
3. Independent Test Data
4. Certification Requirements
5. Warranty Information |
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C. |
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Submit
anhydrous calcium chloride testing according to ASTM F 1869-98, that
shall be performed by the Owner's Special Inspector to the Architect,
Owner, General Contractor, and Water Vapor Reduction System Manufacture's
Representative. |
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1.4
QUALITY ASSURANCE |
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A. |
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Qualifications of Applicator |
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1.
Employ an Applicator currently approved by the manufacturer, experienced
In surface preparation and application of the material and subject
to inspection and control of the manufacturer. |
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2.
Installer shall have no less than five (5) years experience installing
the Koester water vapor reduction coating systems. |
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B. |
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Manufacturer's
Qualification |
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1.
Manufacturer shall have no less than five (5) years experience in
manufacturing the same water vapor reduction system. The water vapor
reduction system must be specifically formulated and marketed Internationally
for water vapor reduction and alkalinity control without change of
formulation or system design for a minimum period of five (5) years. |
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2.
Manufacturer shall provide the Owner with their standard ten (10)
year warranty at no additional cost. Applicator of water vapor reduction
system shall provide standard installation warranty for workmanship. |
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3. Manufacturer must provide Independent lab test reports documenting
performance per the following: |
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a.
ASTM E 96, Water Vapor Transmission (dry and wet methods) Performance
shall be documented by an independent testing laboratory at a minimum
of 90% for Koester Vap1 2000 System, water vapor transmission reduction
compared to untreated ACI Committee 201 durable concrete.
b. ASTM D 1308; Insensitivlty to alkaline environment up tp
pH 14.
c. Certify acceptance to continuous topical water exposure
after final cure. |
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4.
Submit list of product use and performance history, for the same formulation
and system design, listing reference sources. Similar projects shall
have documented minimum Initial water vapor transmission rates of
15 Ibs per 1,000 sf per 24 hrs, and have resulted in maintained water
vapor reduction rate of less than 3 Ibs per 1,000 sf per 24 hrs when
tested to ASTM F 1869-98. |
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1.5
DELIVERY, STORAGE, AND HANDLING |
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A. |
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Deliver
products to the job site in their original unopened containers, clearly
labeled with the manufacturer's name and brand designation. |
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B. |
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Store
products in an approved ventilated dry area; protect from dampness,
freezing, and direct sun light. Product should not be stored in areas
with temperatures in excess of 90 °F or below 50 °F. |
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C. |
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Handle
product In a manner that will prevent breakage of containers and damage
products. |
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1.6
PROJECT/SITE CONDITIONS |
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A. |
Enviornmental
Conditions: |
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1.
Do not apply moisture vapor reduction system to unprotected surfaces
or when water is accumulated on the surface of the concrete.
2. Do not apply water vapor reduction system when temperature
is lower than 50° F or expected to fall below this temperature
within 24 hours from time of application.
3. Allow continuous ventilation and indirect air movement at all
times during application and curing process of the water vapor reduction
system. |
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B. |
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Protection:
Protect water vapor reduction system to prevent damage from active
rain or topical water for a minimum period of 24 hours from time of
appllcation. |
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1.7
SCHEDULING |
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A. |
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Before
installation of the receiving VCT, sheet vinyl, rubber flooring, wood,
carpet, and or epoxy flooring systems over the interior concrete slabs,
anhydrous calcium chloride testing shall be performed as per ASTM
F 1869-98 by the Owner's Special Inspector as outlined In Article
3.1 below to determine the level of water vapor transmission In the
slab and the type of moisture vapor reduction system required. |
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B. |
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The
Owner's Special Inspector will coordinate with the Owner scheduling
water vapor reduction system testing and allowing enough time to test,
submit and install the water vapor reduction system before installation
of floor finish. |
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C. |
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The
Owner's Special Inspector will allow for as much time as Is reasonable
for the concrete slab to dry before installing anhydrous calcium chloride
tests. All mastics, glues, and/or contaminants shall be removed to
provide a clean, sound, concrete substrate prior to installing anhydrous
calcium chloride tests as per ASTM F 1869-98. No Exceptions! |
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| PART
2 - PRODUCTS |
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2.1
MANUFACTURERS |
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A. |
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Water
vapor reduction system, which may be Incorporated In the work, shall
be the product of a single manufacturer, no substitutions. Manufacturer's
offering approved products such as: |
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1.
Koester VAP 1® 2000 System by Koester American Corporation;
Corporate Headquarters: (757) 425-1206. Western Regional Office: (541)
548-0210 |
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B. |
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Terminology
hereafter is based upon the products of Koester American Corporation. |
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2.2
MATERIALS |
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General: Use materials of one manufacturer throughout the project
as hereinafter specified. |
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B. |
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Water-based
primer/curing agent, 100% solids VAP 1 ® 2000 coating, containing
specifically formulated chemicals and resins to provide the following
characteristics and properties. |
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1.
ASTM E 96, Water Vapor Transmission (dry and wet methods) Performance
shall be documented by an independent testing laboratory at a minimum
90% for Koester VAP 1® 2000 System water vapor transmission reduction
compared to untreated ACI Committee 201 durable concrete.
2. Certify acceptance and exposure to continuous topical water
exposure after final cure. |
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2.3
KOESTER VAP 1® 2000 SYSTEM |
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A. |
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This
one (1) coat system consists of one (1) coat of VAP 1 ® 2000 applied
to a properly prepared concrete surface. Anhydrous calcium chloride
testing performed by the Owner's Special Inspector having water vapor
transmission levels greater then 3 lbs/24hrs. per 1000/sf. and less
then 25 lbs/24 hrs per 1,000/sf. (depending on Individual conditions)
shall determine where this system Is utilized and the coverage rates
required. The Owner shall specify a floor covering system and adhesive
having the ability to withstand water vapor transmission levels up
to 3 Ibs/ 24 hrs per 1,000/sf. The water vapor reduction system shall
be required to reduce vapor emissions by a minimum of 90% after final
cure. Verify water vapor reduction by anhydrous calcium chloride testing
according to ASTM F 1869-98 prior to proceeding with any floor covering
Installation. |
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2.4
AREAS NOT REQUIRING VAPOR REDUCTION SYSTEM |
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A. |
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Anhydrous calcium chloride testing performed by the Owner's Special
Inspector for interior concrete slab areas receiving VCT, sheet vinyl,
rubber flooring, wood, carpet, and or epoxy flooring systems will
determine where these systems might be required. Water vapor reduction
system might be required on concrete floors with water vapor transmission
level less than 3 lbs/24 hrs per 1,000 sf or 5 Ibs for some specific
flooring systems, verify with flooring system manufacturer. |
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B. |
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Water
vapor reduction system Is not required on Interior concrete slabs
without floor finishes. |
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2.5
MIX DESIGNS |
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A. |
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Use
clean containers and mix thoroughly as per Manufacturer's requirements
to obtain a homogeneous mixture. Use a low speed motor less than 400
rpm and a two btaded Jiffy mixing blade only. DO NOT AERATE. Mix ratios
are measured by volume. |
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B. |
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VAP
1® 2000 Mix Ratio: Mix Component A and Bat a ratio of 2.4:1. |
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| PART
3 - EXECUTION |
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3.1
EXAMINATION |
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A.
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Calcium
chloride test requirements: |
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1.
Anhydrous calcium chloride testing shall be performed by the Owner's
Special Inspector as outlined in Section 01410 - Quality Requirements.
2. Provide anhydrous calcium chloride tests according ASTM
F 1869 - 98 In accordance to all surface preparation methods outlined.
Tests shall be Installed onto freshly abraded contaminant free concrete.
No exceptions
3. Only conduct calcium chloride tests at the same temperature
and humidity expected during normal use. If this Is not possible,
then the test conditions should be 75°F +-10°F and 50+-10%
relative humidity. Maintain these conditions 48 hours prior to and
during tests. Water vapor transmission levels are directly affected
by ambient room temperature and readings conducted without a sustained
ambient temperature are NOT acceptable.
4. Owner's Special Inspector shall provide test results with
a marked up floor finish plan showing test results. Owner's Special
Inspector shall provide a written clarification on status of the ambient
air temperature and humidity before and during the testing procedures.
5. Owner's Special Inspector shall provide a marked up floor
plan showing areas with vapor reduction system recommendations. |
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B. |
Initial
calcium chloride tests: |
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1.
Before installation of VCT, sheet vinyl, rubber flooring, wood, carpet,
and / or epoxy flooring system over Interior concrete slabs, the Owner's
Special Inspector shall make known the level of water vapor transmission
In the slab In accordance to ASTM F 1869-98 to all parties involved.
The Owner's Special Inspector will document the test results and provide
recommendations on the type of moisture vapor reduction system to
be utilized. |
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C. |
Floor
treatment calcium chloride tests: |
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1.
After proper cure of the final coat of the water vapor reduction system
the Owner's Special Inspector shall provide calcium chloride tests
to determine If the level of water vapor transmission and alkalinity
are reduced to the Owner's specified levels In conjunction with the
flooring manufacturers installation requirements. Contact Owner and
water vapor reduction system Manufacturer's Representative concerning
areas with a water vapor transmission level greater than the Owner's
specified levels. |
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D. |
Adhesion
tests: |
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1.
The Owner's Special Inspector shall verify proper adhesion of flooring
adhesives, coatings, and leveling compounds to the final vapor reduction
coating system for acceptability. Contact Manufacturer's Representatives
for recommendations. |
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3.2
PREPARATION |
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A. |
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Inspect
all surfaces with regard to their suitability to receive moisture
vapor reduction system with vapor reduction coating system by Manufacturer's
Representative. |
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B. |
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Clean
all surfaces to receive moisture vapor reduction system. Shotblast
all floors and clean surfaces with Shop Vac to remove all residue
off the substrate. Remove ALL defective materials, and foreign matter
such as dust, adhesives, leveling compounds, paint, dirt, floor hardeners,
bond breakers, oil, grease, curing agents, form release agents, efflorescence,
laltance, Shotblast bee bees, etc. Repair all cracks, expansion joint,
control Joints, and open surface honeycombs and fill in accordance
with Manufacturers recommendations. Inform vapor reduction system
manufacturer if concrete additives like chlorides or any other soluble
compounds that can contaminate surfaces have been used in the concrete
mix. Reinforcing fibers must be burned off, scraped and vacuumed.
Remove, after shotblasting, leaving no fibers left on the concrete
surfaces. Provide uncontamlnated, absorbtlve, sound surface. DO NOT
ACID ETCH! |
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C. |
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Repair
concrete prior to moisture vapor reduction system installation by
utilizing Koester SB Bonding Emulsion with approved concrete repair
materials. Comply with all requirements as listed in Manufacturer's
technical data information. No exceptions. Consult with vapor reduction
manufacturer. |
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D. |
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Make
sure that surfaces to be treated with moisture vapor reduction system
have NOT previously been treated with other materials like underlayments,
screeds, penetrating sealants, etc. If this is the case, consult with
the Manufacturers Representative prior to any application of moisture
vapor reduction system. |
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E. |
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Only
a surface substrate that REMAINS uncontaminated, absorbtive, and sound
is fit to receive a water vapor reduction system. Comply with all
requirements as listed in Manufacturer's technical data information.
No exceptions. |
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F. |
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Proper
removal of contaminants can render surfaces too rough for certain
flooring systems. Therefore shotblast a small test area and verify
with the flooring applicator that the surfaces are fit to receive
the specified flooring system without the application of an underlayment
on top of the VAP 1® 2000 System. |
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3.3
APPLICATION |
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A. |
VAP
1® 2000 System Application: |
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1.
The coverage rates for this Single Coat system depend on the surface
texture and porosity of the. substrate as well as the measured level
of moisture, from Section 3.1 Examination. On average, coverage of
90 to 130 sq.ft./gal. can be expected.
2. Approximate Coverages Relative to Existing Levels of Moisture
Vapor. Up to 8lbs./1000sq.ft./24hr. 130 sq.ft./gal. Up to 15 lbs./1000
sq.ft./24hr. 90 sq.ft./gal. Up to 25 lbs./1000 sq.ft./24hr. 70 sq.ft./gal.
3. Apply one coat of VAP 1 @ 2000 at an average coverage rate
of 90 to 130 sq.ft./gal. using a squeegee and or a 3/8-inch nap roller
leaving NO areas untreated. Allow to cure a minimum of 12 hours before
installing flooring system. (See additional application instructions
in Koester technical data sheets.) |
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B. |
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Optional:
VAP 1 Primer System Application; (For very porous surfaces to avoid
out gasing /air displacement, see technical brochures.) |
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1.
Dampen uncontaminatedconcrete surface, (SSD) Surface Saturated Dry,
leaving NO standing water. Surfaces must be damp, not wet to the touch.
Always use clean potable water to pre-dampen concrete surfaces. Only
pre-dampen concrete prior to the first VAP Primer coat. DO NOT pre-dampen
between subsequent coats of the VAP Systems.
2. Spray VAP 1 Primer leaving no areas untreated. Back brush
thoroughly.
3. Avoid puddling and pinholes when back brushing.
4. Provide continuous ventilation and air movement during curing
process. No exceptions.
5. Apply first VAP 1 Primer coat at a rate of 250 sf per gallon
and allow to cure a minimum of 6 hours. (See additional application
instructions In Koester technical data sheets.)
6. Apply one coat of VAP 1 @ 2000 at an average coverage rate
of 90 to 130 sf per gallon using a squeegee and or 3/8-inch nap roller
leaving NO areas untreated. Allow to cure a minimum of 12 hours before
installing flooring system. (See additional application instructions
in Koester technical data sheets.) |
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C. |
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A
cementitious underlayment system with an approved epoxy primer if
required by the Owner, Floor Covering Installer, or the Floor Covering
Manufacturer may be used to level and smooth surfaces after shotblasting
the floor on top of the water vapor reduction system. The underlayment
system utilized must be tested and approved (no exceptions) by the
manufacturer of the underlayment system prior to installation. No
underlayment system containing gypsum will be allowed. When water
based adheslves are utilized in the floor covering installation, use
an approved underlavment system with primer prior to the Installation
of the flooring system. Please consult the adhesive manufacturer for
their minimum recommended thickness of cementitious underlavment to
absorb excess moisture In the adhesive. Leveling of the substrate
shall not be considered part of the water vapor reduction system.
No exceptions. |
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D. |
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For
installation of resilient flooring directly over the water vapor reduction
system, the contractor responsible for installing the floor covering
system shall use 100% solids adheslves and or contact type adhesives
with long working times that can be applied to substrates with a pH
up to 10. The method of use is to apply the contact type adhesives
to the substrate and allow the materials water to flash off prior
to the flooring installation. Always test proper adhesion of adhesive
to water vapor reduction system prior to Installation of entire flooring
systems. No exceptions. |
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3.4
CLEANING |
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A. |
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Clean
all tools and equipment with xylene immediately after use for the
VAP 1® 2000 System and water when using VAP 1 Primer for water
vapor reduction. |
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B. |
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water
when using VAP 1 Primer for water vapor reduction. B. Remove all debris
resulting from water vapor reduction system Installation from project
site. |
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3.5
PROTECTION |
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A. |
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Protect
each coat during specified cure period from any kind of traffic, topical
water, and contaminants. |
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