Section 035416 - Hydraulic Cement Underlayment

Copyright 2014 AIA MasterSpec Premium 06/14

PRODUCT MASTERSPEC LICENSED BY ARCOM TO SCHÖNOX, HPS NORTH AMERICA, INC.

Copyright 2014 by The American Institute of Architects (AIA)

Exclusively published and distributed by AVITRU, LLC for the AIA

This Product MasterSpec Section is licensed by AVITRU, LLC to Schönox, HPS North America, Inc. ("Licensee").

This Product MasterSpec Section modifies the original MasterSpec text and does not include the full content of the original MasterSpec Section.

Revisions made to the original MasterSpec text are made solely by the Licensee and are not endorsed by, or representative of the opinions of, Avitru or The American Institute of Architects (AIA). Neither AIA nor Avitru are liable in any way for such revisions or for the use of this Product MasterSpec Section by any end user. A qualified design professional should review and edit the document to suit project requirements.

For more information, contact Schönox, HPS North America, Inc., 511 Wilhite St., Florence, AL 35630 Phone: (855) 391-2649; Fax: (256) 246-0346; Website: www.hpsubfloors.com; Email: .

For information about MasterSpec, contact Avitru at (800) 424-5080 or visit avitru.com.

SECTION 035416 - HYDRAULIC CEMENT UNDERLAYMENT

TIPS:

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To read detailed research, technical information about products and materials, and coordination checklists, click on MasterWorks/Supporting Information.

Revise this Section by deleting and inserting text to meet Project-specific requirements.

Verify that Section titles referenced in this Section are correct for this Project's Specifications; Section titles may have changed.

PART 1 - GENERAL

1.1  RELATED DOCUMENTS

Retain or delete this article in all Sections of Project Manual.

  1. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division01 Specification Sections, apply to this Section.

1.2  SUMMARY

  1. Section includes polymer-modified, self-leveling, hydraulic cement underlayment for application below interior floor coverings.

1.3  ALLOWANCES

Retain products and Work included in this Section that are covered by cash or quantity allowance. Do not include amounts. Insert descriptions of items in Part2 or 3 to provide information affecting the cost of the Work that is not included under the allowance.

  1. Provide hydraulic cement underlayment as part of [underlayment allowance] <Insert name of allowance>.

1.4  UNIT PRICES

Retain this article if Work specified in this Section is measured and paid for under the provisions of unit prices. Do not include amounts. Insert descriptions of items in Part2 or 3 to provide information affecting the cost of the Work that is not included under the unit price.

  1. Work of this Section is affected by [underlayment unit price] <Insert name of unit price>.

1.5  PREINSTALLATION MEETINGS

Retain "Preinstallation Conference" Paragraph below if Work of this Section is extensive or complex enough to justify a conference.

  1. Preinstallation Conference: Conduct conference at [Project site] <Insert location>.

If needed, insert list of conference participants not mentioned in Section013100 "Project Management and Coordination."

1.6  ACTION SUBMITTALS

  1. Product Data: For each type of product.
  2. LEED Submittals:
  3. Sustainable Design Submittals:

"Product Data" Subparagraph below applies to LEED 2009 NC, CI, and CS; LEEDv4; IgCC; ASHRAE189.1; and Green Globes. Coordinate with requirements for paints and coatings.

  1. Product Data: For coatings, indicating VOC content.

"Laboratory Test Reports" Subparagraph below applies to LEED 2009 for Schools, LEEDv4, IgCC, ASHRAE189.1, and Green Globes. Coordinate with requirements for paints and coatings.

  1. Laboratory Test Reports: For coatings, indicating compliance with requirements for low-emitting materials.

Retain "Shop Drawings" Paragraph below if survey of existing conditions is required.

  1. Shop Drawings: Include plans indicating substrates, locations, and average depths of underlayment based on survey of substrate conditions.

1.7  INFORMATIONAL SUBMITTALS

Coordinate "Qualification Data" Paragraph below with qualification requirements in Section014000 "Quality Requirements" and as may be supplemented in "Quality Assurance" Article.

  1. Qualification Data: For Installer.

1.8  QUALITY ASSURANCE

  1. Manufacturer Qualifications:
  2. Manufacturer to have ISO9001 quality management system registration.
  3. Manufacturer to have ISO14001 environmental management system registration.

Some manufacturers approve installers; others do not. Revise "Installer Qualifications" Paragraph below to suit products selected.

  1. Installer Qualifications: Installer who is approved by manufacturer for application of underlayment products required for this Project.

1.9  FIELD CONDITIONS

  1. Environmental Limitations: Comply with manufacturer's written instructions for substrate temperature, ventilation, ambient temperature and humidity, and other conditions affecting underlayment performance.
  2. Place hydraulic cement underlayments only when ambient temperature and temperature of substrates are between 50 and 80 degF (10 and 27 degC).

1.10  WARRANTY

When warranties are required, verify with Owner's counsel that warranties stated in this article are not less than remedies available to Owner under prevailing local laws.

  1. Manufacturer's Special Warranty: Manufacturer of underlayment products agrees to warranty product against defects of full product systems used.

Verify available warranties and warranty periods.

  1. Warranty Period: 10 years from date of Substantial Completion.

PART 2 - PRODUCTS

Manufacturers and products listed in SpecAgent and MasterWorks Paragraph Builder are neither recommended nor endorsed by the AIA or Avitru. Before inserting names, verify that manufacturers and products listed there comply with requirements retained or revised in descriptions and are both available and suitable for the intended applications. For definitions of terms and requirements for Contractor's product selection, see Section016000 "Product Requirements."

2.1  PERFORMANCE REQUIREMENTS

  1. Surface-Burning Characteristics: Comply with ASTME84; testing by a qualified testing agency. Identify products with appropriate markings of applicable testing agency.

Retain one option in "Flame-Spread Index" Subparagraph below. ClassA products have a flame-spread index not exceeding 25 and a smoke-developed index not exceeding 50; ClassB products have a flame-spread index not exceeding 75 on face side; and ClassC products have a flame-spread index not exceeding 200 on face side. Most products available in the United States are ClassA.

  1. Flame-Spread Index: Class[A] [B] [C] according to ASTME1264.

Retain first option in "Smoke-Developed Index" Subparagraph below for ClassA products, which is according to ASTME1264. Retain second option for ClassB and ClassC products, which is according to the IBC for all products.

  1. Smoke-Developed Index: [50] [450] <Insert value> or less.

2.2  HYDRAULIC CEMENT UNDERLAYMENTS

Minimum thickness indicated in "Hydraulic Cement Underlayment" Paragraph below indicates capability of material, generally over concrete. Required minimum thickness for application depends on substrate and type of floor covering to be applied. Wood substrates, for example, will require greater minimum thickness. In addition, numerous manufacturers make products with differing compressive strengths, cure times, and suitability for use with radiant flooring. Consult manufacturers.

  1. Hydraulic Cement Underlayment: Polymer-modified, self-leveling, hydraulic cement product that can be applied in minimum uniform thickness of 1/4 inch (6 mm) and that can be feathered at edges to match adjacent floor elevations.

Retain "Basis-of-Design Product" Paragraph and list of manufacturers below to identify a specific product or a comparable product from manufacturers listed.

  1. Basis-of-Design Product: Subject to compliance with requirements, provide Schönox, HPS North America, Inc.; [SCHÖNOXDSP] [SCHÖNOXUS] [SCHÖNOXZM] [SCHÖNOXZM RAPID] [SCHÖNOXSL] or comparable product by one of the following:
  2. ARDEX Americas.
  3. Euclid Chemical Company (The); an RPM company.
  4. MAPEI Corporation.
  5. Maxxon Corporation.
  6. Insert manufacturer's name>.

Revise "Compressive Strength" Subparagraph below to suit Project; consult manufacturers. Products are available in a range of strengths; retain one option or insert value in subparagraph.

  1. Compressive Strength: Not less than [4000 psi (27.6 MPa)] [5000 psi (34.5 MPa)] [6000 psi (41.4 MPa)] <Insert value> at 28 days when tested according to ASTMC109/C109M.

Retain "Aggregate" Paragraph below if addition of aggregate filler is required by manufacturer to achieve thickness indicated. Coordinate aggregate size with depth of underlayment.

  1. Aggregate: Well-graded, washed gravel, 1/8 to 1/4 inch (3 to 6 mm); or coarse sand as recommended by underlayment manufacturer.
  2. Provide aggregate when recommended in writing by underlayment manufacturer for underlayment thickness required.
  3. Water: Potable and at a temperature of not more than 70 degF (21 degC).

When applied over wood, some manufacturers recommend reinforcing their products; consult manufacturers. Retain "Reinforcement" Paragraph below if applicable.

  1. Reinforcement: For underlayment applied to wood substrates, provide galvanized metal lath or other corrosion-resistant reinforcement recommended in writing by underlayment manufacturer.
  2. Primer: Product of underlayment manufacturer recommended in writing for substrate, conditions, and application indicated.

"VOC Content" Paragraph below applies to LEED 2009 NC, CI, and CSCreditIEQ4.2.

  1. VOC Content: Provide coating with VOC content of 200g/L or less.

"Low-Emitting Materials" Paragraph below applies to LEED 2009 for Schools.

  1. Low-Emitting Materials: Coating shall comply with the testing and product requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers."

"VOC Content" Paragraph below applies to LEEDv4.

  1. VOC Content: Provide coating with VOC content of 100g/L or less.

"Low-Emitting Materials" Paragraph below applies to LEEDv4.

  1. Low-Emitting Materials: Coating shall comply with the testing and product requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers."

"Material Emissions and Pollutant Control" Paragraph below applies to IgCC.

  1. Material Emissions and Pollutant Control: Coating shall comply with either of the following:
  2. Low-Emitting Materials: VOC emissions shall comply with the requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers." Formaldehyde emissions shall not exceed 9 mcg/cu.m or 7 ppb, whichever is less.
  3. VOC Content: Provide coating with VOC content of 100g/L or less.

"Emissions Requirements" Paragraph below applies to ASHRAE189.1.

  1. Emissions Requirements: Coating shall comply with either of the following:
  2. Low-Emitting Materials: VOC emissions shall comply with the requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers."
  3. VOC Content: Provide coating with VOC content of 100g/L or less.

Retain "Corrosion-Resistant Coating" Paragraph below for metal substrates. Some manufacturers do not recommend using their products over metal.

  1. Corrosion-Resistant Coating: Recommended in writing by underlayment manufacturer for metal substrates.

"VOC Content" Subparagraph below applies to LEED 2009 NC, CI, and CSCreditIEQ4.2.

  1. VOC Content: Provide coating with VOC content of 250g/L or less.

"Low-Emitting Materials" Subparagraph below applies to LEED 2009 for Schools.

  1. Low-Emitting Materials: Coating shall comply with the testing and product requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers."

"VOC Content" Subparagraph below applies to LEEDv4.

  1. VOC Content: Provide coating with VOC content of 100g/L or less.

"Low-Emitting Materials" Subparagraph below applies to LEEDv4.

  1. Low-Emitting Materials: Coating shall comply with the testing and product requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers."

"Material Emissions and Pollutant Control" Subparagraph below applies to IgCC.

  1. Material Emissions and Pollutant Control: Coating shall comply with either of the following:
  2. Low-Emitting Materials: VOC emissions shall comply with the requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers." Formaldehyde emissions shall not exceed 9 mcg/cu.m or 7 ppb, whichever is less.
  3. VOC Content: Provide coating with VOC content of 250g/L or less.

"Emissions Requirements" Subparagraph below applies to ASHRAE189.1.

  1. Emissions Requirements: Coating shall comply with either of the following:
  2. Low-Emitting Materials: VOC emissions shall comply with the requirements of the California Department of Public Health's "Standard Method for the Testing and Evaluation of Volatile Organic Chemical Emissions from Indoor Sources Using Environmental Chambers."
  3. VOC Content: Provide coating with VOC content of 100g/L or less.

Retain "Surface Sealer" Paragraph if required. Confirm compatibility with floor coverings and floor covering adhesives specified in Division09 Sections.

  1. 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

  1. Examine substrates, with Installer present, for conditions affecting performance of the Work.
  2. Proceed with application only after unsatisfactory conditions have been corrected.

3.2  PREPARATION

  1. General: Prepare and clean substrate according to manufacturer's written instructions.
  2. Treat nonmoving substrate cracks according to manufacturer's written instructions to prevent cracks from telegraphing (reflecting) through underlayment.
  3. Fill substrate voids to prevent underlayment from leaking.

If underlayments are installed over adhesive residues, consult manufacturers for recommendations and revise "Concrete Substrates" Paragraph below.

  1. 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.

Retain "Moisture Testing" or "Relative Humidity Test" Subparagraph below.

  1. Moisture Testing: Perform anhydrous calcium chloride test, ASTMF1869. Proceed with installation only after substrates do not exceed a maximum moisture-vapor-emission rate of [3 lb of water/1000 sq. ft. (1.36 kg of water/100 sq.m)] <Insert value> in 24 hours.

MFMA recommends a maximum relative humidity level of 80 percent for concrete slabs before installation of non-adhered systems and 75 percent for adhered systems.

  1. Relative Humidity Test: Using in situ probes, ASTMF2170. Proceed with installation only after substrates have a maximum [80] [75] <Insert number> percent relative humidity level measurement.
  2. Wood Substrates: Mechanically fasten loose boards and panels to eliminate substrate movement and squeaks. Sand to remove coatings that might impair underlayment bond and remove sanding dust.

Retain subparagraph below if applicable.

  1. Install underlayment reinforcement recommended in writing by manufacturer.
  2. Metal Substrates: Mechanically remove, according to manufacturer's written instructions, rust, foreign matter, and other contaminants that might impair underlayment bond. Apply corrosion-resistant coating compatible with underlayment if recommended in writing by underlayment manufacturer.
  3. Nonporous Substrates: For ceramic tile, quarry tile, and terrazzo substrates, remove waxes, sealants, and other contaminants that might impair underlayment bond, and prepare surfaces according to manufacturer's written instructions.
  4. Adhesion Tests: After substrate preparation, test substrate for adhesion with underlayment according to manufacturer's written instructions.

3.3  APPLICATION

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