WATER PROOFING/INSTALLATION:
Ceramic, Mosaic, Quarry,
Paver, Marble and Granite

SPECIFICATION				PRP 315
							Thin Load-Bearing Trowel-Applied
							Waterproof Membrane							
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DESCRIPTION: A proprietary two-component concentrated synthetic polymer liquid and flexible cementitious fiber mortar.  When mixed to a smooth consistency it is easily trowelable up to 5/64” (2mm) thickness to provide a thin load-bearing, flexible, chloride and sulfate resistant ANSI A118.10 latex fiber-cement waterproofing membrane.  Readily compatible with ANSI A118.4 latex Portland cement mortars for thin-set ceramic tile, quarry tile and dimension stone installation.

Specify for interior and exterior waterproofing with or without fiberglass mesh (see LIMITATIONS section of data sheet).

Specify for waterproofing and protecting concrete, masonry and other approved substrates for ceramic tile and dimension stone.

Specify for use on floor and walls directly under thin-set ceramic tiles, quarry tiles, and dimension stones installed with GRANI/RAPID system, KERABOND/KERALASTIC, KERAPLY-ULTRA/FLOR Mortar, KERACRETE and other similar ANSI A118.4 type mortars (see respective product data sheets for complete details and limitations).

Specify for use in restaurants, commercial kitchens, hospital wet areas, fountains, pools, pool decks, tank linings, Jacuzzis, showers and baths where thin-set waterproofing is required (see LIMITATIONS section of data sheet).

Specify for repairs and waterproofing over “hairline cracks” not exceeding 1/8” (3mm) 
(see LIMITATIONS section of data sheet).

DO NOT specify as single-ply roofing or for waterproofing roof decks.

DO NOT specify as sole “watertight” system inside concrete swimming pools and tanks. Concrete pools and tanks shall be made “watertight” by other trades and tested by filling with water prior to applying PRP 315 as a secondary back-up waterproofing.

DO NOT specify to bridge expansion or control joints.

DO NOT specify or bridge, repair or waterproof structural cracks greater that 1/16” (1,5mm)
especially when further movement is reasonably expected.

DO NOT specify for thin-set waterproofing of a plywood substrate inside showers and roman tubs, on balconies, outside porches, roof decks, exterior walls, etc.

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

DO NOT specify over a substrate where deflection exceeds L/360 under live or dead loads.
DO NOT specify PRP 315 at temperatures below 50 F (10 C) or above 100 F (38 C) applications.

When specifying PRP 315 in the Waterproofing or Tile Section selected – ceramic, mosaic, quarry, paver, slate, marble or granite – add appropriate articles or paragraphs under the applicable PART as indicated.
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PART 1 GENERAL

REFERENCES

ANSI A118.10 1993 - Material Specification for Load Bearing, Bonded, Waterproof Membranes for Thin-Set Ceramic Tile and Dimension Stone Installations.

ANSI A137.1 - Material Specifications for Ceramic Tile

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 a single source.  Waterproofing, 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.

If frozen, do not stir until material has completely thawed

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 tile work from carbon dioxide build-up.

Maintain temperatures at not less than 50 degrees F (10 degrees C) or more than 100 degrees F (38 degrees C) in tiled areas during installation and for 7 days after completion.

PART 2 PRODUCTS

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Select PRP 315 and appropriate accessory.  Delete non-applicable material.
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MEMBRANE MATERIALS

MEMBRANE: PRP 315 thin load bearing trowel applied waterproof membrane consisting of two components - concentrated synthetic polymer liquid and flexible cementitious fiber mortar, complying with ANSI A118.10 as manufactured by MAPEI CORPORATION.

ACCESSORY

FIBER MESH NET: Fiber mesh net 5/32 (4mm) square alkaline resistant, as supplied by MAPEI CORPORATION] [PREFORMED OUTSIDE CORNERS] [PREFORMED INSIDE CORNERS] [DRAINAGE MAT].

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When specifying PRP 315 in performance specification, call MAPEI CORPORATION’s technical Department toll-free number for assistance with product characteristics.

When specifying Mortar Materials for bonding to PRP 315 waterproof membrane, specify MORTAR MATERIALS: GRANI/RAPID, KERABOND/KERALASTIC, ULTRA/FLOR-KERAPLY, KERACRETE setting system or other similar ANSI A118.4 type mortars.

When specifying GROUT MATERIALS, refer to respective suggested grout specification - ULTRA/COLOR sanded polymer-modified cementitious grout or KER 200 sanded polymer-modified Portland cement grout or KER 800 unsanded polymer-modified Portland cement grout (ANSI A118.6) or KERAPOXY 100% solids epoxy grout (ANSI A118.3).  Grout tiles according to grout instructions and ANSI A108.6 specifications.
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MIXES

Mix individually packaged components 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 NOTE section: AN-3 RELATED WORK SPECIFIED IN OTHER SECTIONS.)
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EXAMINATION

Examine surfaces to receive membrane and conditions under which membrane will be installed.  Do not proceed with work until surfaces and conditions comply with requirements indicated by manufacturer’s printed instructions.

PREPARATION

Prepare substrate in accordance with manufacturer’s printed instructions.

INSTALLATION

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Select PRP 315 and appropriate accessory.  Delete non-applicable material.
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	Install waterproof membrane in accordance with manufacturer’s printed instructions.

Install FIBER MESH NET, [PREFORMED INSIDE CORNERS], [PERFORMED OUTSIDE CORNERS], [DRAINAGE MAT] in accordance with manufacturer’s printed instructions.
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Select Field Quality Control article for inclusion in specification when water testing of membrane is required.
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[FIELD QUALITY CONTROL

On completion of installation of membrane, dam installation in preparation for flood testing.

Flood to minimum depth of 2 inches with clean water.

To check for leaks dispense liquid food color dye around perimeter of installation and watch for flow of dye.

If leaking is found, mark areas dye enters membrane, drain installation, dry completely and patch using new waterproofing material.  Allow to dry for 24 hours before setting tile.]

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Select TCA method to be used and delete non-applicable methods.  (Select from latest edition of TCA Handbook.
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[Floor Tile: Install in accordance with TCA method [F111], [F112], 
[F113], [F121], [F122], [F141], [B417], [TR712], [RF912],

[Wall Tile: Install in accordance with TCA method [W221], [W222],
[W231], [W241], [TR713]

[Tub and Fountain Tile: Install in accordance with TCA method B417]

[Refrigerator Room Tile: Install in accordance with TCA method R612]

[Stair Tile: Install in accordance with TCA method S151]

Install expansion and control joints in accordance with TCA method E117

Grout joints shall be clean and free from standing water, dust and foreign substances.

Tile surfaces shall be clean and dry.

PROTECTION

Consult tile material safety data sheet (MSDS) before using this product.  Protect PRP 315 membrane from rain, inclement weather or flood testing for 72 hours after application.

At room temperature, PRP 315 membrane can accept restricted light foot traffic 24 hours after application.  Care should be taken to prevent membrane from becoming soiled or punctured prior to tile application.

Protect exposed membrane from unrestricted foot traffic for 72 hours minimum and preferably until tile or stone surfacing is completed.

For further information and assistance, contact:

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