09 3013 TILING.pdf

LXVA 190206 Lexington VA Medical Center 596-19-102 Bid Documents, 11-16-2020 Renovate B-39 for Transportation & Grounds 10-01-15

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SECTION 09 3013

TILING

PART 1 - GENERAL

1.1 DESCRIPTION:

A. This section specifies interior porcelain tile, and waterproofing membranes.

1.2 RELATED WORK:

C. Sealing of Joints: Section 07 92 00, JOINT SEALANTS.

D. Color, Texture, Pattern, and Size of Field Tile and Trim Shapes, and

Color of Grout Specified: Refer to Finish Schedule on the Drawings.

E. Solid Surface: Section 12 3661.16

G. Metal and Resilient Edge Strips at Joints with New Resilient Flooring:

Section 09 65 19, RESILIENT TILE FLOORING

1.3 SUBMITTALS:

A. Submit in accordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT

DATA, AND SAMPLES.

C. Samples:

1. Porcelain tile, each type, color, patterns and size.

2. Wall (or wainscot) tile, each color, size and pattern.

D. Product Data:

1. Ceramic and Porcelain tile, marked to show each type, size, and shape required.

2. Chemical resistant mortar and grout (epoxy and furan).

3. Cementitious backer unit.

4. Dry-set portland cement mortar and grout.

5. Divider strip.

6. Elastomeric membrane and bond coat.

7. Reinforcing tape.

8. Leveling compound.

E. Certification:

1. Master grade certificate, ANSI A137.1.

2. Manufacturer's certificates indicating that the following materials comply with specification requirements:

a. Chemical resistant mortar and grout (epoxy and furan).

b. Modified epoxy emulsion.

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c. Commercial portland cement grout.

d. Cementitious backer unit.

e. Dry-set portland cement mortar and grout.

f. Elastomeric membrane and bond coat.

g. Reinforcing tape.

h. Latex-portland cement mortar and grout.

i. Leveling compound.

j. Organic adhesive.

k. Waterproof isolation membrane.

l. Factory back mounted tile documentation for suitability for application in wet area.

F. Installer Qualifications:

1. Submit letter stating installer’s experience.

1.4 DELIVERY AND STORAGE:

A. Deliver materials in containers with labels legible and intact and grade-seals unbroken.

B. Store material to prevent damage or contamination.

1.5 QUALITY ASSURANCE:

A. Installers to be from a company specializing in performing installation of products specified and have a minimum of three (3) years’ experience.

B. Each type and color of tile to be provided from a single source.

C. Each type and color of mortar, adhesive, and grout to be provided from the same source.

1.6 WARRANTY:

A. Construction Warranty: Comply with FAR clause 52.246-21, “Warranty of

Construction”.

1.7 APPLICABLE PUBLICATIONS:

A. Publications listed below form a part of this specification to the extent referenced. Publications are referenced in text by basic designation only.

B. American National Standards Institute (ANSI):

A10.20-06(R2011)........Safe Operating Practices for Tile, Terrazzo and

Marble WorkA108/A118/A136-14 Installation of

Ceramic Tile

A108.01-13..............Subsurfaces and Preparations by Other Trades

A108.02-13..............Materials, Environmental, and Workmanship

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A108.1A-14..............Installation of Ceramic Tile in the Wet-Set

Method with Portland Cement Mortar

A108.1B-10..............Installation of Ceramic Tile on a Cured

Portland Cement Mortar Setting Bed with Dry-Set or Latex-Portland Cement Mortar

A108.1C-10..............Contractors Option; Installation of Ceramic

Tile in the Wet-Set method with Portland Cement

Mortar or Installation of Ceramic Tile on a

Cured Portland Cement Mortar Setting Bed with

Dry-Set or Latex-Portland Cement Mortar

A108.4-09...............Ceramic Tile with Organic Adhesives or Water

Cleanable Tile-Setting Epoxy Adhesive

A108.6-10...............Ceramic Tile with Chemical Resistant, Water

Cleanable Tile-Setting and -Grouting Epoxy

A108.8-10...............Ceramic Tile with Chemical Resistant Furan

Resin Mortar and Grout

A108.10-10..............Grout in Tilework

A108.13-10..............Load Bearing, Bonded, Waterproof Membranes for

Thin-Set Ceramic Tile and Dimension Stone

A118.1-12...............Dry-Set Portland Cement Mortar

A118.3-13...............Chemical Resistant, Water Cleanable Tile-

Setting and –Grouting Epoxy and Water Cleanable

Tile-Setting Epoxy Adhesive

A118.4-12...............Latex-Portland Cement Mortar

A118.5-10...............Chemical Resistant Furan Mortars and Grouts

A118.6-10...............Cement Grouts for Tile Installation

A118.7-10...............High Performance Cement Grouts for Tile

Installation

A118.9-10...............Cementitious Backer Units

A118.10-14..............Load Bearing, Bonded, Waterproof Membranes for

Thin-Set Ceramic Tile and Dimension Stone

Installation

A136.1-13...............Organic Adhesives for Installation of Ceramic

Tile

A137.1-12...............American National Standard Specifications for

Ceramic Tile

C. ASTM International (ASTM):

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A666-10.................Annealed or Cold-Worked Austenitic Stainless

Steel Sheet, Strip, Plate and Flat Bar

A1064/A1064M-14.........Carbon-Steel Wire and Welded Wire

Reinforcement, Plain and Deformed, for Concrete

C109/C109M-13...........Standard Test Method for Compressive Strength of Hydraulic Cement Mortars (Using 2 inch. or

[50-mm] Cube Specimens)

C241/C241M-13...........Abrasion Resistance of Stone Subjected to Foot

Traffic

C348-14.................Standard Test Method for Flexural Strength of

Hydraulic-Cement Mortars

C627-10.................Evaluating Ceramic Floor Tile Installation

Systems Using the Robinson-Type Floor Tester

C954-11.................Steel Drill Screws for the Application of

Gypsum Board on Metal Plaster Base to Steel

Studs from 0.033 in (0.84 mm) to 0.112 in (2.84

mm) in thickness

C979/C979M-10...........Pigments for Integrally Colored Concrete

C1002-14................Steel Self-Piercing Tapping Screws for the

Application of Panel Products

C1027-09................Test Method for Determining Visible Abrasion

Resistance of Glazed Ceramic Tile

C1127-01(R2009).........Standard Guide for Use of High Solids Content, Cold Liquid-Applied Elastomeric Waterproofing

Membrane with an Integral Wearing Surface

C1178/C1178M-13.........Standard Specification for Coated Glass Mat

Water-Resistant Gypsum Backing Panel

C1325-14................Non-Asbestos Fiber-Mat Reinforced Cementitious

Backer Units

C1353/C1353M-09(R2013)..Abrasion Resistance of Dimension Stone

Subjected to Foot Traffic Using a Rotary

Platform, Double-Head Abraser

D1204-14................Test Method for Linear Dimensional Changes of

Nonrigid Thermoplastic Sheeting or Film at

Elevated Temperature

D2240-05(R2010).........Test Method for Rubber Property – Durometer

Hardness

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D2497-07(R2012).........Tolerances for Manufactured Organic-Base

Filament Single Yarns

D3045-92(R2010).........Heat Aging of Plastics Without Load

D4397-10................Standard Specification for Polyethylene

Sheeting for Construction, Industrial and

Agricultural Applications

D5109-12................Standard Test Methods for Copper-Clad

Thermosetting Laminates for Printed Wiring

Boards

D. Code of Federal Regulation (CFR):

40 CFR 59...............Determination of Volatile Matter Content, Water

Content, Density Volume Solids, and Weight

Solids of Surface Coating

E. Marble Institute of America (MIA): Design Manual III-2007

F. Tile Council of North America, Inc. (TCNA):

Handbook for Ceramic Tile Installation (2014)

DCOF AcuTest-2012.......Dynamic Coefficient of Friction Test

PART 2 - PRODUCTS

2.1 TILE:

A. Comply with ANSI A137.1, Standard Grade, except as modified:

1. Inspection procedures listed under the Appendix of ANSI A137.1.

2. Abrasion Resistance Classification:

a. Tested in accordance with values listed in Table 1, ASTM C1027.

b. Class V, 12000 revolutions for floors in Corridors, Kitchens, Storage including Refrigerated Rooms

c. Class IV, 6000 revolutions for remaining areas.

3. Slip Resistant Tile for Floors:

a. Coefficient of friction, when tested in accordance with

ANSI A137.1 and measured per the TCNA DCOF AcuTest.

1) Equal to or greater than .42 for level interior tile floors that will be walked on when wet.

1. Internal and External Corners:

a. Square internal and external corner joints are not acceptable.

b. External corners including edges: Use bullnose shapes.

c. Internal corners: Use cove shapes.

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d. Base to floor internal corners: Use special shapes providing integral cove vertical and horizontal joint.

e. Base to floor external corners: Use special shapes providing bullnose vertical edge with integral cove horizontal joint. Use stop at bottom of openings having bullnose return to wall.

f. Wall top edge internal corners: Use special shapes providing integral cove vertical joint with bullnose top edge.

g. Wall top edge external corners: Use special shapes providing bullnose vertical and horizontal joint edge.

2.2 BACKER UNITS:

A. Cementitious Backer Units:

1. Use in showers or wet areas.

2. Conform to ASTM C1325; Type A.

3. Use in maximum lengths available to minimize end to end butt joints.

2.3 JOINT MATERIALS FOR CEMENTITIOUS BACKER UNITS:

A. Reinforcing Tape: Vinyl coated woven glass fiber mesh tape, open weave, 50 mm (2 inches) wide. Tape with pressure sensitive adhesive backing will not be permitted.

B. Tape Embedding Material: Latex-portland cement mortar complying with

ANSI A108.01.

C. Joint material, including reinforcing tape, and tape embedding material, are to be as specifically recommended by the backer unit manufacturer.

2.4 FASTENERS:

A. Screws for Cementitious Backer Units.

1. Standard screws for gypsum board are not acceptable.

2. Minimum 11 mm (7/16 inch) diameter head, corrosion resistant coated, with washers.

3. ASTM C954 for steel 1 mm (0.033 inch) thick.

4. ASTM C1002 for steel framing less than 0.0329 inch thick.

B. Washers: Galvanized steel, 13 mm (1/2 inch) minimum diameter.

2.5 SETTING MATERIALS OR BOND COATS:

A. Conform to TCNA Handbook for Ceramic Tile Installation.

B. Portland Cement Mortar: ANSI A108.02.

C. Latex-Portland Cement Mortar: ANSI A118.4.

1. For wall applications, provide non-sagging, latex-portland cement mortar complying with ANSI A118.4.

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2. Prepackaged Dry-Mortar Mix: Factory-prepared mixture of portland cement; dry, redispersible, ethylene vinyl acetate additive; and other ingredients to which only water needs to be added at Project site.

D. Dry-Set Portland Cement Mortar: ANSI A118.1. For wall applications, provide non-sagging, latex-portland cement mortar complying with

ANSI A118.1.

E. Elastomeric Waterproofing Membrane and Bond Coat:

1. TCNA F122-14 (on ground concrete) and TCNA F112A-14 (above ground concrete).

2. ANSI A118.10.

3. One component polyurethane, liquid applied material having the following additional physical properties:

a. Hardness: Shore "A" between 40-60.

b. Elongation: Between 300-600 percent.

c. Tensile strength: Between .27 - .41 Newton per square millimeter

(40-60 pounds per square inch gauge).

d. No volatile compounds (VOC).

4. Coal tar modified urethanes are not acceptable.

F. Waterproofing Isolation Membrane:

1. Sheet System TCNA F122-14 (on-ground concrete) and TCNA F122A-14

(above-ground concrete).

2. Composite sheet consisting of ASTM D5109, Type II, Grade I

Chlorinated Polyethylene (CM) sheet reinforced on both sides with a non-woven polyester fiber.

3. Designed for use in wet areas as an isolation and positive waterproofing membranes for thin-set bonding of sheet to substrate and thin-set bonding of ceramic and porcelain tile or marble to sheet. Suited for both horizontal and vertical applications.

4. Conform to the following additional physical properties:

Property Units Results Test Method

Hardness Shore A

Points 70-80 ASTM D2240

(10 Second Reading)

Shrinkage Percent 5 maximum ASTM D1204

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Brittleness No crack remains flexible at temperature

-37 degrees C

(-35 degrees F)

ASTM D2497

13 mm (1/2-inch) Mandrel Bend

Retention of Properties after Heat Aging

Percent of original

80 Tensile

80 Breaking

80 Elongation

ASTM D3045,

90 degrees C

(194 degrees F) for 168 hours

5. Manufacturer’s standard sheet size with prefabricated or preformed inside and outside corners.

6. Sheet manufacturer’s solvent welding liquid or xylene and edge sealant.

2.6 GROUTING MATERIALS:

A. Coloring Pigments:

1. Pure mineral pigments, lime proof and nonfading, complying with

ASTM C979/C979M.

2. Coloring pigments may only be added to grout by the manufacturer.

3. Job colored grout is not acceptable.

4. Use is required in Commercial Portland Cement Grout, Dry-Set Grout, and Latex-Portland Cement Grout.

B. Sand-Portland Cement Grout: ANSI A108.10, consisting of white or gray cement and white or colored aggregate as required to produce color indicated. Zero VOC content.

C. Standard Cement Grout: ANSI A118.6.

D. High Performance Tile Grout: ANSI A118.7 with a VOC content of 65 g/L or less when calculated according to 40 CFR 59 (EPA Method 24)

E. Water-Cleanable Epoxy Grout: ANSI A118.3 //, with a VOC content of

65 g/L or less when calculated according to 40 CFR 59

(EPA Method 24) //.

1. Provide product capable of withstanding continuous and intermittent exposure to temperatures of up to 60 and 100 degrees C (140 and

212 degrees F), respectively, and certified by manufacturer for intended use.

2.7 PATCHING AND LEVELING COMPOUND:

A. Portland cement base, polymer-modified, self-leveling compound, manufactured specifically for resurfacing and leveling concrete floors.

Products containing gypsum are not acceptable.

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B. Provide a patching and leveling compound with the following minimum physical properties:

1. Compressive strength - 25 MPa (3500 psig) per ASTM C109/C109M.

2. Flexural strength - 7 MPa (1000 psig) per ASTM C348 (28 day value).

3. Tensile strength – 4.1 MPa (600 psi) per ANSI 118.7.

4. Density – 1.9.

C. Capable of being applied in layers up to 38 mm (1-1/2 inches) thick without fillers and up to 101 mm (4 inches) thick with fillers, being brought to a feather edge, and being trowelled to a smooth finish.

D. Primers, fillers, and reinforcement as required by manufacturer for application and substrate condition.

E. Ready for use in 48 hours after application.

2.8 WATER:

A. Clean, potable and free from salts and other injurious elements to mortar and grout materials.

2.9 CLEANING COMPOUNDS:

A. Specifically designed for cleaning masonry and concrete and which will not prevent bond of subsequent tile setting materials including patching and leveling compounds and elastomeric waterproofing membrane and coat.

B. Materials containing acid or caustic Material are not acceptable.

2.10 POLYETHYLENE SHEET:

A. Polyethylene sheet conforming to ASTM D4397.

B. Nominal thickness: 0.15 mm (6 mils).

PART 3 - EXECUTION

3.1 ENVIRONMENTAL REQUIREMENTS:

A. Maintain ambient temperature of work areas at not less than

16 degrees C (60 degrees F), without interruption, for not less than 24 hours before installation and not less than three (3) days after installation.

B. Maintain higher temperatures for a longer period of time where required by manufacturer's recommendation and ANSI Specifications for installation.

C. Do not install tile when the temperature is above 38 degrees C

(100 degrees F).

D. Do not install materials when the temperature of the substrate is below

16 degrees C (60 degrees F).

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E. Do not allow temperature to fall below 10 degrees C (50 degrees F) after third day of completion of tile work.

3.2 ALLOWABLE TOLERANCE:

A. Variation in plane of sub-floor, including concrete fills leveling compounds and mortar beds:

1. Not more than 6 mm in 3048 mm (1/4 inch in 10 feet) from required elevation where portland cement mortar setting bed is used.

2. Not more than 3 mm in 3048 mm (1/8 inch in 10 feet) where dry-set portland cement, and latex-portland cement mortar setting beds and chemical-resistant bond coats are used.

B. Variation in Plane of Wall Surfaces:

1. Not more than 6 mm in 2438 mm (1/4 inch in 8 feet) from required plane where portland cement mortar setting bed is used.

2. Not more than 3 mm in 2438 mm (1/8 inch in 8 feet) where dry-set or latex-portland cement mortar or organic adhesive setting materials is used.

3.3 SURFACE PREPARATION:

A. Patching and Leveling:

1. Mix and apply patching and leveling compound in accordance with manufacturer's instructions.

2. Fill holes and cracks and align concrete floors that are out of required plane with patching and leveling compound.

a. Thickness of compound as required to bring finish tile system to elevation shown on construction documents.

b. Float finish // except finish smooth for elastomeric waterproofing //.

c. At substrate expansion, isolation, and other moving joints, allow joint of same width to continue through underlayment.

3. Apply patching and leveling compound to concrete surfaces that are out of required plane.

B. Mortar Bed for Slopes to Drains:

1. Slope compound to drain where drains are shown on construction documents.

2. Install mortar bed in depressed slab sloped to drains not less than

3.2 mm in 305 mm (1/8 inch per foot).

3. Allow not less than 50 mm (2 inch) depression at edge of depressed slab.

4. Screed for slope to drain and float finish.

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5. Cure mortar bed for not less than seven (7) days. Do not use curing compounds or coatings.

6. Perform flood test to verify mortar bed slopes to drain before installing tile. Contracting Officer Representative (COR) to be present during flood test.

C. Additional preparation of concrete floors for tile set with epoxy, or furan-resin is to be in accordance with the manufacturer's printed instructions.

2. Apply patching and leveling compound to concrete surfaces that are out of required plane.

3. Apply leveling coats of material compatible with wall surface and tile setting material to wall surfaces, other than concrete and masonry that are out of required plane.

D. Existing Floors and Walls:

1. Remove existing composition floor finishes and adhesive. Prepare surface by grinding, chipping, self-contained power blast cleaning or other suitable mechanical methods to completely expose uncontaminated concrete or masonry surfaces. Follow safety requirements of ANSI A10.20.

3.4 METAL DIVIDER STRIPS:

A. Install metal divider strips in floor joints between tile floors and between tile floors and adjacent flooring of other materials where the finish floors are flush unless shown otherwise on construction documents.

B. Set divider strip in mortar bed to line and level centered under doors or in openings.

3.5 PORCELAIN TILE – GENERAL:

A. Comply with ANSI A108/A118/A136 series of tile installation standards applicable to methods of installation and TCNA Installation Guidelines.

B. Installing Mortar Beds for Floors:

1. Install mortar bed in a manner that does not damage cleavage or waterproof membrane; 32 mm (1-1/2 inch) minimum thickness.

2. Install floor mortar bed reinforcing centered in mortar fill.

3. Screed finish to level plane or slope to drains shown on construction documents, float finish.

4. For thin set systems cure mortar bed not less than seven (7) days.

Do not use curing compounds or coatings.

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5. For tile set with portland cement paste over plastic mortar bed coordinate to set tile before mortar bed sets.

C. Setting Beds or Bond Coats:

1. Where recessed or depressed floor slabs are filled with portland cement mortar bed, set mosaic floor tile in either portland cement paste over plastic mortar bed or latex-portland cement mortar over cured mortar bed except as specified otherwise, ANSI A108-1C, TCNA System F121-14 or F111-14.

2. Set floor tile in elastomeric bond coat over elastomeric membrane per ANSI 108.13, TCNA System F122-14 where indicated on construction documents.

3. Set tile installed over gypsum board and gypsum plaster in organic adhesive, ANSI A108.1, TCNA System W242-14.

4. Set trim shapes in same material specified for setting adjoining tile.

D. Workmanship:

1. Lay out tile work so that no tile less than one-half full size is used. Make all cuts on the outer edge of the field.

2. Set tile firmly in place with finish surfaces in true planes. Align tile flush with adjacent tile unless shown otherwise on construction documents.

3. Form intersections and returns accurately.

4. Cut and drill tile neatly without marring surface.

5. Cut edges of tile abutting penetrations, finish, or built-in items:

a. Fit tile closely around electrical outlets, piping, fixtures and fittings, so that plates, escutcheons, collars and flanges will overlap cut edge of tile.

b. Seal tile joints water tight as specified in Section 07 92 00, JOINT SEALANTS, around electrical outlets, piping fixtures and fittings before cover plates and escutcheons are set in place.

6. Completed work is to be free from hollow sounding areas and loose, cracked or defective tile.

7. Remove and reset tiles that are out of plane or misaligned.

8. Floors:

a. Extend floor tile beneath casework and equipment, except those units mounted in wall recesses.

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b. Align finish surface of new tile work flush with other and existing adjoining floor finish where indicated in construction documents.

c. In areas where floor drains occur, slope tile to drains.

d. Push and vibrate tiles over 203 mm (8 inches) square to achieve full support of bond coat.

9. Walls:

a. Cover walls and partitions, including pilasters, furred areas, and freestanding columns from floor to ceiling, or from floor to nominal wainscot heights as indicated in construction documents with tile.

b. Finish reveals of openings with tile, except where other finish materials are indicated in construction documents.

d. Finish wall surfaces behind and at sides of casework and equipment, except those units mounted in wall recesses, with same tile as scheduled for room proper.

10. Joints:

a. Keep all joints in line, straight, level, perpendicular and of even width unless shown otherwise on construction documents.

b. Make joints 2 mm (1/16 inch) wide for glazed wall tile

d. Make joints in porcelain tile; maximum 3 mm (1/8 inch) wide.

11. Back Buttering: For installations indicated below, obtain 100 percent mortar coverage by complying with applicable special requirements for back buttering of tile in referenced

ANSI A108/A118/A136 series of tile installation standards:

a. Tile wall installations in wet areas, including showers, tub enclosures, laundries and swimming pools.

b. Tile installed with chemical-resistant mortars and grouts.

c. Tile wall installations composed of tiles 203 by 203 mm

(8 by 8 inches) or larger.

d. Exterior tile wall installations.

3.6 TILE INSTALLED WITH PORTLAND CEMENT MORTAR:

A. Mortar Mixes for Floor, Wall and Base Tile (including Showers):

ANSI A108.1A. except specified otherwise.

B. Installing Wall and Base Tile: ANSI A108.1A, except specified otherwise.

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C. Installing Floor Tile: ANSI A108.1A, except as specified otherwise.

Slope mortar beds to floor drains at a minimum of 3 mm in 305 mm

(1/8 inch per foot).

3.7 PORCELAIN TILE INSTALLED WITH LATEX PORTLAND CEMENT BONDING MORTAR:

A. Due to the denseness of porcelain tile use latex portland cement bonding mortar that meets the requirements of ANSI A108.01. Mix bonding mortars in accordance with manufacturer’s instructions. Provide liquid ratios and comply with dwell times during the placement of bonding mortar and tile.

3.8 THIN SET PORCELAIN TILE INSTALLED WITH DRY-SET PORTLAND CEMENT AND LATEX-

PORTLAND CEMENT MORTAR:

A. Installation of Tile: ANSI A108.1B, except as specified otherwise.

B. Slope tile work to drains at not less than 3 mm in 305 mm (1/8 inch per foot).

3.9 THIN SET PORCELAIN TILE INSTALLED WITH ORGANIC ADHESIVE

A. porcelain TILE INSTALLED WITH CHEMICAL-RESISTANT BOND COAT:

A. Epoxy Resin Type: Install tile in accordance with Installation of Tile with Epoxy Mortar; ANSI A108.6.

B. Furan Resin Type: Proportion, mix and place in accordance with the manufacturer's printed instructions. Set tile in accordance with

ANSI A108.8.

3.11 PORCELAIN TILE INSTALLED WITH ELASTOMERIC BOND COAT:

A. Surface Preparation: Prepare surfaces as specified.

B. Installation of Elastomeric Membrane: ANSI A108.10 and TCNA F122-14 (on ground concrete) and F122A-14 (above-ground concrete).

1. Prime surfaces, where required, in accordance with manufacturer's instructions.

2. Install first coat of membrane material in accordance with manufacturer's instructions, in thickness of 0.76 to 1.3 mm (30 to

50 mils).

3. Extend material over flashing rings of drains and turn up vertical surfaces not less than 101 mm (4 inches) above finish floor surface.

4. When material has set, recoat areas with a second coat of elastomeric membrane material for a total thickness of 1.3 to 1.9 mm

(50 to 75 mils).

5. After curing test for leaks with 25 mm (1 inch) of water for 24 hours.

C. Installation of Tile in Elastomeric Membrane:

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1. Spread no more material than can be covered with tile before material starts to set.

2. Apply tile in second coat of elastomeric membrane material in accordance with the coating manufacturer's instructions in lieu at aggregate surfacing specified in ASTM C1127. Do not install top coat over tile.

3.12 GROUTING:

A. Grout Type and Location:

1. Grout for porcelain wall and base tile portland cement grout, latex-portland cement grout, dry-set grout, or commercial portland cement grout.

B. Workmanship:

1. Install and cure grout in accordance with the applicable standard.

2. Sand Portland Cement Grout: ANSI A108.10.

3. Standard Cement Grout: ANSI A118.6.

4. High Performance Grout: ANSI A118.7.

5. Epoxy Grout: ANSI A108.6.

6. Water-Cleanable Epoxy Grout: ANSI A118.3.

7. Furan and Commercial Portland Cement Grout: ANSI A118.5 and in accordance with the manufacturer's printed instructions.

3.13 CLEANING:

A. Thoroughly sponge and wash tile. Polish glazed surfaces with clean dry cloths.

B. Methods and materials used are not permitted to damage or impair appearance of tile surfaces.

C. The use of acid or acid cleaners on glazed tile surfaces is prohibited.

D. Clean tile grouted with epoxy, furan and commercial portland cement grout and tile set in elastomeric bond coat as recommended by the manufacturer of the grout and bond coat.

3.14 PROTECTION:

A. Keep traffic off tile floor, until grout and setting material is fully set and cured.

B. Where traffic occurs over tile floor is unavoidable, cover tile floor with not less than 9 mm (3/8 inch) thick plywood, wood particle board, or hardboard securely taped in place. Do not remove protective cover until time for final inspection. Clean tile of any tape, adhesive and stains.

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3.15 TESTING FINISH FLOOR:

A. Test floors in accordance with ASTM C627 to show compliance with codes

1 through 10.

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