INSTALLATION:
Ceramic, Mosaic, Quarry, Paver, Slate, Marble and Granite

SPECIFICATION				KERAFONIC
							Sound Deadening Mortar Underlayment

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DESCRIPTION:  A two-component sound control mortar underlayment designed for applications over interior floors of concrete or exterior grade plywood (interior dry areas only) prior to setting ceramic tile.  KERAFONIC reduces impact noise and sound transmission between floors in multi-story construction, making it ideal for condominiums and apartment buildings.

Specify for applications requiring reduction of impact noise or sound transmission between floors where ceramic tile will be installed.

Specify for applications in apartments, condominiums and office buildings, or where foot traffic is anticipated (see data sheet regarding LIMITATIONS).

Specify for interior use only.

DO NOT specify for exterior use.

DO NOT specify as a dry-set mortar.

DO NOT specify over particleboard, chipboard, masonite, Lauan, gypsum floor patching compounds, metal or similar dimensionally unstable materials.

When specifying KERAFONIC in the Tile Selection selected – ceramic, mosaic, quarry, paver, slate, marble or granite – please add appropriate articles or paragraphs under the applicable PART as indicated.

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PART 1 GENERAL

REFERENCES

ASTM E90 - Method for Laboratory Measurement of Airborne-Sound Transmission Loss of Building Partitions

ASTM E413 – Standard Classification for Determining Sound Transmission Class (STC)

ASTM E492 – Method of Laboratory Measurement of Impact Sound Transmission through Floor/Ceiling Assemblies using the Tapping Machine

ASTM E989 – Classification for Determining Impact Insulation Class (IIC)

ISO 140 – Acoustics – Measurements of Sound Installaion in Buildings and at Building Elements: Part IV – Laboratory Measurement of Impact Sound Insulation of Floors, and Part VII – Field Measurements of Impact Sound Insulation of Floors.

Tile Council of America, Inc. (TCA) – Handbook for Ceramic Tile Installation

SUBMITTALS

Product Data: Submit manufacturer’s technical information and installation instructions for materials required.

QUALITY ASSURANCE

Provide tile, grout and setting materials from one source. Underlayment, additives, dry-set mortars, installation materials and grouts shall be from the same manufacturer.

DELIVERY, STORAGE AND HANDLING

Deliver and store packaged materials in original containers with seals unbroken and labels intact until time of use.  Prevent damage or contamination to materials by water, freezing, foreign matter or other causes.

Take necessary protective measures against freezing at all times.  Once liquid component has frozen, it cannot be used.

Limited product shelf life: 3 months (at 70 degrees F).

Deliver and store materials on site at least 24 hours before work begins.

Provide heated and dry storage facilities on site.

PROJECT CONDITIONS

Maintain environmental conditions and protect work during and after installation to comply with referenced standards and manufacturer’s printed recommendations.

Vent temporary heaters to exterior to prevent damage to tilework from carbon dioxide build-up.

Maintain temperatures at no less than 50 degrees F (10 degrees C) in tiled areas during installation and for 7 days after completion, unless higher temperatures are required by referenced installation standards or manufacturer’s written instructions.

PART 2 PRODUCTS

MATERIALS

SOUND CONTROL UNDERLAYMENT: KERAFONIC underlayment system consisting of two-components, as manufactured by MAPEI CORPORATION, Sound Transmission Class (STC) ASTM E90 and ASTM E413, and Impact Insulation Class (IIC) ASTM E492 and ASTM E989.

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When specifying KERAFONIC in performance specification, Call MAPEI CORPORATION’s Technical Service Department toll-free number for assistance with product characteristics.

When specifying MORTAR MATERIALS for setting tile over KERAFONIC, specify only KERALASTIC universal setting systems (ANSI A118.4) (See specification sheet).

When specifying GROUT MATERIALS, specify ULTRA/COLOR sanded polymer-modified cementitious grout or KER 200 sanded polymer-modified Portland cement grout (ANSI A118.6) (see specification sheets).  Grout tile according to grout instructions and ANSI A108.10 specifications.
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MIXES

Proportion and mix factory-prepared mortar with acrylic latex additive in accordance with manufacturer’s printed instructions.

PART 3 EXECUTION

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Specifications for surface conditions are listed in the beginning of the specification of MAPEI’s Architectural Binder.  These specifications should be called out with the related work sections.  Delete non-applicable conditions.  (Refer to ANSI EXPLANATION AND NOTES section: AN-3 RELATED WORK SPECIFIED IN OTHER SECTIONS.)
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EXAMINATION

Examine surfaces to receive underlayment and conditions under which underlayment will be installed.  Do not proceed until surfaces and conditions comply with manufacturer’s requirements.

INSTALLATION

Install sound control underlayment in accordance with manufacturer’s printed instructions.

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No TCA installation method for sound control underlayments exists at this time.
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Install expansion and control joints in area with TCA method EJ171.

PROTECTION

Protect KERAFONIC underlayment for at least 48 hours or until ceramic tile is installed.  Cooler temperatures or thicker cross-sections may extend the setting time of the underlayment.

Protect finished work from general traffic for at least 72 hours after installation.  Plywood or stepping boards may be used after 24 hours when occasional stepping on the floor is unavoidable or when surface has hardened enough to prevent damage.

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When dealing with cement-based products, it should be noted that temperature and humidity during and after installation of tile affect final curing time, i.e., low temperatures (60 degrees and under) and high humidity (70% and above) will delay final cure time.
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For further information and assistance, contact:

				     MAPEI CORPORATION
				     1501 WALL STREET
				     GARLAND, TEXAS 75041-4046
				     1-800-992-6273