HomeMy WebLinkAbout03-5416-Hydraulic-Cement-Underlayment_Rev_1Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011 New Section, Issued February 23, 2021
HYDRAULIC CEMENT UNDERLAYMENT
03 5416 - 1
SECTION 03 5416
HYDRAULIC CEMENT UNDERLAYMENT
(Part of Filed Sub-Bid Section 09 0005 - Resilient Floors)
PART 1 - GENERAL
1.1 RELATED DOCUMENTS
A. Drawings and general provisions of the Contract, including General and Supplementary
Conditions and Division 01 Specification Sections, apply to this Section.
1.2 SUMMARY
A. Section includes polymer-modified, self-leveling, hydraulic cement underlayment for application
below interior floor coverings.
B. Related Requirements:
1. Section 01 8113 “Sustainable Design Requirements” for general requirements and
procedures for compliance with certain USGBC LEED prerequisites and credits.
2. Section 09 0561.13 “Moisture Vapor Emission Control” for hydraulic cement
underlayment installed as a part of moisture vapor emission control system.
3. Section 09 6519 “Resilient Tile Flooring" for resilient tile flooring installed over hydraulic
cement underlayment.
4. Section 09 6543 “Linoleum Flooring” for linoleum flooring installed over hydraulic cement
underlayment.
1.3 COORDINATION
A. Coordinate application of underlayment with requirements of floor-covering products and
adhesives, to ensure compatibility of products.
1.4 PREINSTALLATION MEETINGS
A. Preinstallation Conference: Conduct conference at Project site.
1.5 ACTION SUBMITTALS
A. Make Submittals in accordance with Section 01 3300 “Submittal Procedures.”
B. Product Data: For each type of product.
C. Sustainable Design Submittals:
1. Environmental Product Declaration (EPD): Provide manufacturers' or third-party
certification that includes the following information:
a. The exposure scenario used to determine compliance.
b. The range of total VOCs after 14 days, measured as specified in the CDPH
Standard Method v1.1:
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011 New Section, Issued February 23, 2021
HYDRAULIC CEMENT UNDERLAYMENT
03 5416 - 2
1) 0.5 mg/m^3 or less;
2) Between 0.5 and 5.0 mg/m^3; or
3) 5.0 mg/m^3 or more
c. Claims of compliance for wet-applied products must state the amount applied in
mass per surface area.
2. Health Product Declaration (HPD): Provide manufacturers' or third-party certification
when available.
3. Complete "LEED Materials Documentation Sheet" with IEQc2 information for
paints/coatings installed within the waterproofing membrane.
1.6 INFORMATIONAL SUBMITTALS
A. Qualification Data: For Installer.
B. Product Compatibility: From manufacturers of underlayment and floor-covering systems,
certifying in writing that products are compatible.
1.7 QUALITY ASSURANCE
A. Installer Qualifications: Installer who is approved by manufacturer for application of
underlayment products required for this Project.
1.8 FIELD CONDITIONS
A. Environmental Limitations: Comply with manufacturer's written instructions for substrate
temperature, ventilation, ambient temperature and humidity, and other conditions affecting
underlayment performance.
1. Place hydraulic cement underlayments only when ambient temperature and temperature
of substrates are between 50 and 80 deg F.
PART 2 - PRODUCTS
2.1 LEED REQUIREMENTS
A. Provide products with Third Party Environmental Product Declaration (EPD) whenever possible.
B. Provide products with Third Party Health Product Declaration (HPD) whenever possible.
C. For field applications that are inside the weatherproofing membrane: Paints and Coatings must
be tested and determined compliant in accordance with California Department of Public Health
(CDPH) Standard Method v1.1-2010, using the applicable exposure scenario. The default
scenario is the private office scenario.
D. All paints and coatings wet-applied on site must meet the applicable VOC limits of the California
Air Resources Board (CARB) 2007, Suggested Control Measure (SCM) for Architectural
Coatings, or the South Coast Air Quality Management District (SCAQMD) Rule 1113, effective
June 3, 2011.
1. VOC Content: Liquid floor treatments shall have a VOC content of 100 g/L or less when
calculated according to 40 CFR 59, Subpart D (EPA Method 24).
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011 New Section, Issued February 23, 2021
HYDRAULIC CEMENT UNDERLAYMENT
03 5416 - 3
2.2 PERFORMANCE REQUIREMENTS
A. Fire-Resistance Ratings: Comply with ASTM E119; testing by a qualified testing agency.
Identify products with appropriate markings of applicable testing agency.
1. Indicate design designations from UL's "Fire Resistance Directory" or from the listings of
another qualified testing agency.
2.3 HYDRAULIC CEMENT UNDERLAYMENTS
A. Hydraulic Cement Underlayment: Polymer-modified, self-leveling, hydraulic cement product
that can be applied in minimum uniform thickness of 1/4 inch and that can be feathered at
edges to match adjacent floor elevations.
1. Products: Subject to compliance with requirements, products that may be incorporated
into the Work include, but are not limited to the following or equal:
a. Ardex; K-15 Self-Leveling Underlayment Concrete.
b. Dayton Superior Corporation; LeveLayer.
c. L&M Construction Chemicals, Inc.; Levelex.
d. USG Corporation; Levelrock SLC 400.
2. Cement Binder: ASTM C150/C150M, portland cement, or hydraulic or blended hydraulic
cement as defined by ASTM C219.
3. Compressive Strength: Not less than 4000 psi at 28 days when tested according to
ASTM C109/C109M.
B. Aggregate: Well-graded, washed gravel, 1/8 to 1/4 inch; or coarse sand as recommended by
underlayment manufacturer.
1. Provide aggregate when recommended in writing by underlayment manufacturer for
underlayment thickness required.
C. Water: Potable and at a temperature of not more than 70 deg F.
D. Primer: Product of underlayment manufacturer recommended in writing for substrate,
conditions, and application indicated.
1. VOC Content: Provide coating with VOC content of 200 g/L or less.
E. Surface Sealer: Designed to reduce porosity as recommended by manufacturer for type of floor
covering to be applied to underlayment.
PART 3 - EXECUTION
3.1 EXAMINATION
A. Examine substrates, with Installer present, for conditions affecting performance of the Work.
B. Proceed with application only after unsatisfactory conditions have been corrected.
3.2 PREPARATION
A. General: Prepare and clean substrate according to manufacturer's written instructions.
1. Treat nonmoving substrate cracks according to manufacturer's written instructions to
prevent cracks from telegraphing (reflecting) through underlayment.
2. Fill substrate voids to prevent underlayment from leaking.
Dennis Yarmouth Intermediate Middle School January 19, 2021
Dennis Yarmouth Regional School District 100% Construction Documents
Perkins Eastman DPC, project #71011 New Section, Issued February 23, 2021
HYDRAULIC CEMENT UNDERLAYMENT
03 5416 - 4
B. Concrete Substrates: Mechanically remove, according to manufacturer's written instructions,
laitance, glaze, efflorescence, curing compounds, form-release agents, dust, dirt, grease, oil,
and other contaminants that might impair underlayment bond.
1. Moisture Testing: Perform tests so that each test area does not exceed 200 sq. ft., and
perform no fewer than three tests in each installation area and with test areas evenly
spaced in installation areas.
a. Anhydrous Calcium Chloride Test, ASTM F1869: Proceed with installation only
after substrates do not exceed a maximum moisture-vapor-emission rate of 3 lb of
water/1000 sq. ft. in 24 hours.
b. Relative Humidity Test: Using in situ probes, ASTM F2170. Proceed with
installation only after substrates have a maximum 85 percent relative humidity
level measurement, or as recommended by hydraulic cement underlayment
manufacturer.
C. Adhesion Tests: After substrate preparation, test substrate for adhesion with underlayment
according to manufacturer's written instructions.
3.3 APPLICATION
A. Mix and apply underlayment components according to manufacturer's written instructions.
1. Close areas to traffic during underlayment application and for time period after application
recommended in writing by manufacturer.
2. Coordinate application of components to provide optimum adhesion to substrate and
between coats.
3. At substrate expansion, isolation, and other moving joints, allow joint of same width to
continue through underlayment.
B. Apply primer over prepared substrate at manufacturer's recommended spreading rate.
C. Apply underlayment to produce uniform, level surface.
1. Apply a final layer without aggregate to product surface.
2. Feather edges to match adjacent floor elevations.
D. Cure underlayment according to manufacturer's written instructions. Prevent contamination
during application and curing processes.
E. Do not install floor coverings over underlayment until after time period recommended in writing
by underlayment manufacturer.
F. Apply surface sealer at rate recommended by manufacturer.
G. Remove and replace underlayment areas that evidence lack of bond with substrate, including
areas that emit a "hollow" sound when tapped.
3.4 PROTECTION
A. Protect underlayment from concentrated and rolling loads for remainder of construction period.
END OF SECTION