3/4" Mesh Tile-
architectural
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MOSAICLEGS GLASS MOSAIC TILES
PART 1 GENERAL
1.1 SUMMARY
A. Scope of work - Provide Glass Tile / Glass
Mosaics, installation systems and accessories as indicated on
drawings, as
specified herein, and as needed for complete and
proper installation.
B. Related Documents - provisions within General and
Supplementary General Conditions of the Contract, Division 1
-General
Requirements, and the Drawings apply to this
Section.
1.2 SECTION INCLUDES
A. Glass Mosaics
B. Special purpose tile
C. Decorative thin wall tile
D. Installation Products; adhesive, mortars, thin
fiber reinforced mortar and grouts
E. Waterproof membranes for glass mosaic tilework
F. Anti-fracture membranes for glass mosaic tilework
G. Sound control underlayments
H. Thresholds, trim, cementitious backer units,
sealants, and other accessories specified herein.
NOTE TO SPECIFIER: Edit for applicable procedures &
materials
1.3 PRODUCTS FURNISHED BUT NOT INSTALLED UNDER THIS
SECTION
NOTE TO SPECIFIER: Edit for applicable products
1.4 PRODUCTS INSTALLED BUT NOT FURNISHED UNDER THIS
SECTION
NOTE TO SPECIFIER: Edit for applicable products
1.5 RELATED SECTIONS
A. Section 03300 Cast-in-Place Concrete (monolithic
slab finishing for ceramic tile)
B. Section 03305 Concrete Curing
C. Section 03410 Structural Precast Concrete
D. Section 03532 Concrete Floor Topping
E. Section 04200 Unit Masonry (CMU wall substrates)
F. Section 04300 Stone
G. Section 06100 Rough Carpentry (plywood subfloors)
H. Section 07110 Membrane Waterproofing
I. Section 07920 Elastomeric Joint Sealants
J. Section 09250 Gypsum Board Assemblies
K. Section 09385 Stone Tile
L. Section 10800 Washroom Accessories
M. Section 15440 Plumbing Fixtures
NOTE TO SPECIFIER: Above are examples of typical
broadscope and narrowscope sections related to ceramic tile
installation.
Edit for applicable related sections
1.6 ALLOWANCES
NOTE TO SPECIFIER: Edit for detail of applicable
ALLOWANCES
;
coordinate with
Section 01020 Allowances. Allowances in
the form of unit pricing is sometimes used when the
scope of the tile work at time of bid is undetermined.
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1.7 ALTERNATES
NOTE TO SPECIFIER: edit for applicable ALTERNATES.
Alternates may be used to evaluate varying levels of performance of
setting systems or to assist in the selection of the
tile by economy.
1.8 REFERENCE STANDARDS
A. AMERICAN NATIONAL STANDARDS INSTITUTE
(ANSI-current edition)
B. TILE COUNCIL OF AMERICA (TCA-current edition)
C. AMERICAN SOCIETY for TESTING & MATERIALS (ASTM -
current edition)
D. EUROPEAN STANDARD (EN current – edition)
NOTE TO SPECIFIER: edit for additional applicable
ANSI and ASTM references
1.9 SYSTEM DESCRIPTION
A. Glass Tiles or Glass Mosaics installed using
Latex Fortified Portland Cement Mortar or Epoxy Adhesive with epoxy
grouted
joints or latex fortified Portland cement grouted
joints. (Consult with manufacturer of glass tiles that their product
(and
Mounting) can be used in submerged applications.)
NOTE TO SPECIFIER: The above systems are example
descriptions; edit for additional applicable systems
1.10 SUBMITTALS
A. Submit shop drawings and manufacturers' product
data under provisions of Section (01300.) (01340.)
B. Submit samples of each
type/style/finish/size/color of glass tile, glass mosaic tile, or
trim unit under provisions of Section
(01300.) (01340.)
C. Submit manufacturers' installation instructions
under provisions of Section (01300.) (01340.)
D. Submit manufacturer's certification under
provisions of Section (01405 ) that the materials supplied conform
to ANSI 137.1.
E. Submit proof of warranty.
F. Submit sample of installation system
demonstrating compatibility/functional relationships between
adhesives, mortars,
grouts and other components under provision of
Section (01300.) (01340.)
G. Submit list from manufacturer of installation
system/adhesive/mortar/grout identifying a minimum of three (3)
similar
projects, each with a minimum of ten (10) years
service.
H. For alternate materials, submit independent
laboratory test results confirming compliance with specifications
listed in Part 2 -
Products at least thirty (30) days before bid date.
1.11 QUALITY ASSURANCE
A. Glass Tile Manufacturer (Single source
responsibility): Company specializing in glass tile, glass mosaic
tile, or trim units
with (three) (3 ) years minimum experience. Obtain
tile from a single source with resources to provide products of
consistent
quality in appearance and physical properties.
B. Installation System Manufacturer (single source
responsibility): Company specializing in installation
systems/adhesives/mortars/grouts with ten (10) years
minimum experience (and ISO 9001 certification) Obtain products
from single source manufacturer to insure consistent
quality and compatibility.
C. Submit laboratory confirmation of installation
systems/adhesives/mortars/grouts:
1. Identify proper usage of specified materials
using positive analytical method.
2. Identify proper color matching of specified
materials using a positive analytical method.
D. Installer qualifications: company specializing in
installation of glass tile, mosaics, trim units, and thresholds with
(5) years
documented experience with installations of similar
scope, materials and design.
1.12 MOCK-UPS
A. Provide mock-up of each
type/style/finish/size/color of glass tile, glass mosaic tile, or
trim unit along with respective
installation system/adhesive/mortar/grout, under
provisions of Section (01400) (01405).
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1.13 PRE-INSTALLATION CONFERENCE
Pre-installation conference: At least three weeks
prior to commencing the work attend a meeting at the jobsite to
discuss
conformance with requirements of specification and
job site conditions. Representatives of owner, architect, general
contractor, tile subcontractor, Installation System
Manufacturer, and other parties who are involved in the scope of
this
installation must attend the meeting
1.14 DELIVERY, STORAGE AND HANDLING
A. Acceptance at Site: deliver and store packaged
materials in original containers with seals unbroken and labels,
including
grade seal, intact until time of use, in accordance
with manufacturer's instructions.
B. Store Glass tile and installation system
materials in a dry location; handle in a manner to prevent chipping,
breakage, and
contamination.
C. Protect latex additives, organic adhesives, and
epoxy adhesives from freezing or overheating in accordance with
manufacturer's instructions; store at room
temperature when possible.
D. Store Portland cement mortars and grouts in a dry
location.
1.15 PROJECT/SITE CONDITIONS
A. Provide ventilation and protection of environment
as recommended by manufacturer.
B. Prevent carbon dioxide damage to installation
mortars, adhesives, grouts, and ceramic tile by venting temporary
heaters to
the exterior.
C. Maintain ambient temperatures not less than 50 F
(10 C) or more than 100 F (38 C) during installation and for a
minimum of
seven (7) days after completion. Setting of Portland
cement is retarded by low temperatures. Protect work for extended
period of time and from damage by other trades.
Installation with Latex Portland cement mortars requires substrate,
ambient
and material temperatures at least 37º F/3º C. There
should be no ice in slab. Freezing after installation will not
damage
Latex Portland cement mortars. Protect Portland
cement based mortars and grouts from direct sunlight, radiant heat,
forced
ventilation (heat & cold), and drafts until cured to
prevent premature evaporation of moisture. Epoxy mortars and grouts
require surface temperatures between 60 °F/16°C
and 90°F/32°C
at time of installation.
It is the
General Contractor’s
responsibility to maintain temperature control.
1.16 SEQUENCING AND SCHEDULING
A. Coordinate installation of tile work with related
work.
B. Proceed with tile work only after curbs, vents,
drains, piping, and other projections through substrate have been
installed and
when substrate construction and framing of openings
have been completed.
NOTES FOR SPECIFIER: Edit for project specific
sequence and scheduling
1.17 WARRANTY
The Contractor warrants the work of this Section to
be in accordance with the Contract Documents and free from faults
and
defects in materials and workmanship for a period of
10 years. The manufacturer of installation systems, adhesives,
grouts
and mortars shall provide a written ten-(10) year
warranty, which covers materials and labor. Reference LATICRETE
Warranty Data Sheet 230.12 for complete details.
1.18 MAINTENANCE
Submit maintenance data under provisions of Section
01730. Include cleaning methods, cleaning solutions recommended,
stain removal methods, and polishes and waxes
recommended.
1.19 EXTRA MATERIALS STOCK
Upon completion of the work of this Section, deliver
to the Owner 2% minimum additional tile and trim shape of each type,
color, pattern and size used in the Work, as well as
extra stock of installation mortar, grouts, adhesives and
accessories for
the Owner's use in replacement and maintenance.
Extra stock to be from same production run or batch as original tile
and
installation materials.
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PART 2 - PRODUCTS
2.1 GLASS TILE / GLASS MOSAICS MANUFACTURERS
Subject to compliance with paragraphs 1.12 and
performance requirements, provide products by one of the following
manufacturers:
Tile supplied by Mosaiclegs,
Colton, CA USA
http://www.mosaiclegs.com
Telephone: (909)-884-0588 Fax:(909)-884-0588
2.2 WALL
TILE MATERIALS
[NOTE TO SPECIFIER: edit for each tile type]
A. Glass Tile
B. Grade:
C. Size:
D. Edge
E. Finish:
F. Color
G. Special shapes
H. Location:
2.3 FLOOR TILE MATERIALS
[NOTE TO SPECIFIER: edit for each tile type]
A. Glass Tile
B. Grade:
C. Size:
D. Edge
E. Finish:
F. Color
G. Special shapes
H. Location:
2.4 MORTAR, GROUT AND ADHESIVE MANUFACTURER
A. Mortar, grout, adhesive supplied by LATICRETE
INTERNATIONAL, Inc., 1 Laticrete Park North, Bethany, CT 06524-
3423 USA Phone 800-243-4788, (203) 393-0010
support@laticrete.com
,
www.laticrete.com
NOTE TO SPECIFIER: Use either the following
performance specification or the proprietary specification.
2.5 MATERIAL PERFORMANCE SPECIFICATIONS
A. Latex Portland Cement Mortar for Thick Bed
Mortars, Screeds and Leveling Beds to be weather, frost, shock
resistant
meeting the following physical requirements:
1. Compressive strength: Thick bed, Screeds
& Leveling mortars 5000 psi (34.5 MPa) Min. (ANSI
A118.4.)
2. Water absorption: 5% Max. (ANSI A118.6)
3. Smoke & Flame contribution factors: 0 (ASTM E84 –
Modified)
B. Latex Portland Cement Thin Bed Adhesive Mortar to
be weather, frost, shock resistant meeting the following physical
requirements:
1. Compressive strength: 5000 psi (34.5 MPa) Min.
(ANSI A118.4)
2. Bond strength: 500 psi (3.5MPa) Min. (ANSI
A118.4)
3. Water absorption: 4% Max. (ANSI A118.6)
4. Smoke & Flame contribution factors: 0 (ASTM E84 –
Modified)
C. Latex Portland Cement Grouting Mortar to be
weather, frost, shock resistant meeting the following physical
requirements:
1. Compressive strength: 3500 psi (24 MPa) Min.
(ANSI A118.6)
2. Water absorption: 5% Max. (ANSI A118.6 –
Modified)
3. Smoke & Flame contribution factors: 0 (ASTM E84 –
Modified)
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D. Epoxy Adhesive to be stainproof, chemical
resistant 100% solids epoxy with high temperature resistance and
meeting the
following minimum physical requirements:
1. Compressive strength: 4500 psi (31 MPa) Min. (ASNI
A118.3)
2. Shear Bond Strength: 1000psi (6.9MPa ) Min. (ANSI
A118.3)
3. Water Absorption: 1/2% Max. (ANSI A118.3)
4. Service Temperature: up to 230 °F
(110C°)
5. Cured Epoxy Adhesive to be chemically and stain
resistant to ketchup, mustard, tea, coffee, milk, soda, beer, wine,
bleach (5% solution), ammonia, juices, vegetable
oil, detergents, brine, sugar, cosmetics, and blood and chemically
resistant to dilute acids and alkalis, gasoline,
turpentine, and mineral spirits.
E. Epoxy Grout (residential) shall be non-toxic,
non-flammable, non-hazardous during storage, mixing, application and
when
cured and shall meet the following minimum physical
requirements:
1. Compressive Strength 6600 psi (464 kg/cm2 )min.
(ANSI A118.3)
2. Shear Bond Strength 100 psi (70kg/cm2 )min. (ANSI
A118.3)
3. Water Absorption 1/2% max. (ANSI A118.3)
4. Service Temperature up to 230 °F
(110°C)
5. The finished Epoxy Adhesive or grout to be
chemically and stain resistant to ketchup, mustard, tea, coffee,
milk, soda,
beer, wine, bleach (5% solution), ammonia, juices,
vegetable oil, brine, sugar, cosmetics, and blood and chemically
resistant to dilute acids and alkalis, gasoline,
turpentine, and mineral spirits.
F. Sound Control/Acoustical Underlayment to be load
bearing, shock and vibration resistant and meeting following
physical
requirements:
1. Compressive Strength 600lbs./in.2 (42.2kg/cm2 )
(ASTM C109 Modified)
2. Point Loading Strength 5000lbs./in2 (351.6kg/cm2
) (LIL – 1007-81)
3. Installed Weight (dry)(at 1/2" thickness)
<3lbs./ft2 (14.7kg/m2) (ASTM C905 Modified)
4. Fire Rating Non-Combustible (ASTM E84 Modified)
5. Complete Floor/Ceiling Assembly to meet the
following requirements with no suspended ceiling:
a. Sound Transmission Class (STC) >52 (ASTM E413-73)
b. Impact Insulation Class (IIC) >51(ASTM E492-73)
c. Impact Noise Rating (INR) >0 (FHA 750/HUD TS28)
6. Submit manufacturer’s documentation from an
independent testing laboratory verifying compliance with this
specification when installed on a 4" (100mm)
concrete slab. Manufacturer to be regularly engaged in production of
these materials for minimum 10 years and demonstrate
three (3) similar installations of minimum of five (5) years
successful service.
2.6 INSTALLATION SYSTEM ACCESSORIES PERFORMANCE
SPECIFICATIONS
A. Waterproofing membrane to be thin, cold applied,
single component liquid, load bearing and non-toxic. It shall be
certified
by IAPMO as a shower pan liner. Reinforcing fabric
to be non-woven rot-proof specifically intended for waterproof
membrane. Materials to be non-toxic, non-flammable,
and non-hazardous during storage, mixing, application and when
cured. Equal to LATICRETE 9235 Waterproof Membrane
manufactured by LATICRETE International, Inc. and meeting
following physical requirements:
1. Water Permeability(at 30ft.hydro/0.9 atmos/91.2kPa)
Nil (Fed. Spec. TT-C-00555 Modified)
2. Elongation at break 20-30% (ASTM D751)
3. Service Temperatures -20 °to+280°F(-28°to
+137°C)
(LIL 1016-92)
4. Tensile breaking strength 2950psi
(20.4MPa;207kg/cm² ) (ASTM D751)
5. Thickness 20 mils (0.5mm) (LIL 1013-92)
6. Bond strength 250 PSI (1.72 MPa) (ANSI A118.4)
7. Service Rating ( TCA) Extra Heavy
B. Reinforcing Mesh: 2 inch x 2 inch (50 x 50 mm) x
16 ASW gage or .0625 inch (1.5mm) diameter galvanized steel welded
wire mesh complying with ASTM A185 and ASTM A82
except for minimum wire size.
C. Cleavage membrane: 15 pound asphalt saturated,
non-perforated roofing felt ASTM D226, or 4.0 mils /0.1 mm thick
polyethylene plastic film ASTM D4397
D. Joint Sealant: as specified in Section 07920.
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E. Cementitious backerboard units: size and
thickness as specified, comply with ANSI A118.9
F. Thresholds: Provide marble saddles complying with
ASTM C503 requirements for exterior use and abrasion resistance in
compliance with ASTM C241 in color, size, shape and
thickness as indicated on drawings.
NOTE TO SPECIFIER: Edit / add applicable accessory
products.
2.8 MORTAR, GROUT, ADHESIVE & ACCESSORY FOR OPTIONAL
PROPRIETARY PRODUCT SPECIFICATION
A. Installation system components as manufactured by
LATICRETE International, Inc. Bethany, CT 06524 USA. Phone 800-
243-4788
B. Latex-Portland cement leveling bed/scratch and
render coat mortar: LATICRETE 226 Thick Bed Mortar gauged with
LATICRETE 3701 Mortar Admix as manufactured by
LATICRETE International, Inc.
C. Latex-Portland Cement Thick Bed Mortar: LATICRETE
226 Thick Bed Mortar gauged with LATICRETE 3701 Mortar
Admix as manufactured by LATICRETE International,
Inc.
D. Sound Control/Acoustical Underlayment: LATICRETE
18 Sound Control Underlayment (Standard or Plus Configuration);
as manufactured by LATICRETE International, Inc.
E. Waterproof Membrane- Liquid Applied: LATICRETE
9235 Waterproof Membrane or LATAPOXY 24hr Hydroproofing
Membrane; as manufactured by LATICRETE
International, Inc.
F. Crack Suppression and Anti-Fracture Membrane:
LATICRETE Blue 92 Anti-Fracture Membrane; as manufactured by
LATICRETE International, Inc.
G. Chemical resistant, water cleanable, tile setting
epoxy adhesive: LATAPOXY 300 Epoxy Adhesive as manufactured by
LATICRETE International, Inc.
H. Latex-Portland Cement Mortar: LATICRETE 211 Crete
Filler Powder gauged with LATICRETE 4237 Latex Thin Set
Mortar Additive as manufactured by LATICRETE
International, Inc.
I. Chemical resistant, water cleanable grouting
epoxy: LATICRETE SpectraLock Grout or LATAPOXY SP-100 Stainless
Epoxy Grout for Floors n’ Walls or LATAPOXY 2000
Industrial Epoxy Grout (INDUSTRIAL) as manufactured by
LATICRETE International, Inc.
J. Polymer Modified Tile Grouts for Tile
Installation: LATICRETE Tri-Poly Fortified Sanded Grout (1500
Series) or
LATICRETE Tri-Poly Fortified Unsanded Grout (1600
Series) gauged with LATICRETE 1776 Admix Plus Microban, as
manufactured by LATICRETE International, Inc.
K. Roof Deck System; LATICRETE Plaza & Deck System
L.
LATICRETE
Latasil Silicone Sealants –LATASIL
PART 3 - EXECUTION
3.1 SUBSTRATE EXAMINATION
A. Verify that floor or wall surfaces to be covered
with waterproofing, glass tile, glass mosaics, or trim units are:
1. Sound and conform to good design/engineering
practices; rigid, with maximum deflection of L/360 distributed
uniformly over the span
2. Concrete cured a minimum of 28 days at 70 degrees
F/20 degrees C with a saturated surface dry (SSD) condition,
including an initial (7) day period of wet curing.
NOTE: Latex Portland Cement Mortars do not require a minimum
cure time for concrete slabs or mortar beds
3. Concrete wood float finished, or better, if the
installation is to be done by the thin bed method over concrete,
light steel
trowel finished
4. Clean and free of dirt, oil, grease, sealers,
curing compounds, form oil or loose plaster, paint, and scale.
5. Level and true to within:
a. Walls: 1/8in./3mm in 8ft./2.5m;
b. Floors:1/16in./1.5mm in 3ft./1m (organic adhesive
1/8in./3mm in 10ft./3.0m (mortars, epoxies) for thin bed
applications directly over substrate or thin, load
bearing waterproof membrane; not leveled with gypsum or asphalt
based compounds; pitched to drains where required.
6. Advise General Contractor and Architect of any
surface or substrate conditions requiring correction before tilework
commences. Beginning of work constitutes acceptance
of substrate or surface conditions.
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3.2 SURFACE PREPARATION
A. Prepare EXISTING FLOORING SURFACES including
terrazzo, glass tiles, pavers, quarry tiles, vinyl, vinyl
composition
floor coverings (other than cushion vinyl) to be
sound, solid, well bonded, stripped clean and free form dust, wax,
grease,
sealer and all other contamination which may reduce
or prevent adhesion.
B. CONCRETE SUBSTRATES
C. PLYWOOD SUBSTRATES
D. GYPSUM SUBSTRATE
NOTE TO SPECIFIER: The above are example surface
categories; edit for project specific surfaces and conditions.
3.3 INSTALLATION - ACCESSORIES
A. CRACK SUPPRESSION – See Manufacturer’s Written
Installation Instructions
B. WATERPROOFING - See Manufacturer’s Written
Installation Instructions
C. ACCOUSTICAL UNDERLAYMENT - See Manufacturer’s
Written Installation Instructions
3.4
INSTALLATION – TILE
A. General: Install in accordance with ANSI A108
Standard for Ceramic Tile installation and TCA Handbook. Cut and fit
tiles neatly around corners, fittings, and
obstructions. Perimeter tile to be minimum half tile. Chipped,
cracked, and split tile
and edges, not acceptable. Make joints even,
straight, plumb and of uniform width to tolerance +/- 1/16" (1.5mm)
over 8ft.
(2400mm). Install divider strips at junction of
flooring and dissimilar materials.
B. Thin Bed Method (Rear Mesh Mounted Glass
Mosaics): The LATICRETE adhesive shall be prepared by mixing one of
the
following systems:
LATICRETE® 211 Crete Filler Powder mixed with
LATICRETE® 4237 Thin-Set Mortar Additive (Interior, dry, non high
traffic areas), or
LATAPOXY® 300 Epoxy Adhesive (Best option for
continuous wet areas, high traffic areas, and exterior uses)
Apply prepared mortar to the masonry surface to be
tiled with a notched trowel to work installation materials into good
contact
with tile substrate. A trowel having "V" notches
approximately 3/16" x 3/16" (4mm x 4 mm) is recommended. In
addition, the
adhesive shall be placed onto the backside of each
sheet of glass mosaic tile with the flat side of the trowel
immediately before
placement of the sheet into the freshly troweled
adhesive on the surface to receive the tile work. Spread only as
much adhesive as
can be covered in 20-30 minutes, or while
mortar/adhesive surface is still wet and tacky. Tile shall then be
set in place and rapped
or beaten gently with a grouting float to ensure
100% full bedding and a true surface. Tile shall be aligned to show
uniform joints
and then allowed to set until firm, approximately 20
– 30 minutes. Excess adhesive must be cleaned from the surface of
the tile
with a wet cloth or sponge while the adhesive is
fresh.
C. Thick Bed Method (Vertical Surfaces, Pre-float
Method): Trowel weather resistant, latex-Portland cement
scratch/plumb
coat mortar over wire lath, concrete or masonry;
Float surface of scratch coat plumb/true and set until firm.
D. Thick Bed Method (Horizontal Surfaces; Over
Cleavage Membrane):
1. Verify that allowance for minimum bed thickness
of 2 in/50 mm has been made;
2. Install cleavage membrane complying with ANSI
A108.1 (A-2Materials, A-4.1.5.3);
3. Place mortar bed to a depth approximately
one-half (1/2) finished bed thickness; Lay 2 x 2 in/50 x 50 mm, 16 x
16
ga.(1.5mm), galvanized, welded reinforcing wire
fabric complying with ANSI A108.1(A-2 Materials, A4.1.5.3) and
ASTM A 185 over mortar; Place additional
latex-Portland cement thick bed mortar over wire fabric and compact
mortar
by tamping with flat trowel; Screed mortar bed level
and provide correct slopes to drains; Spread latex-Portland
cement mortar with flat trowel over surface of
"green"/fresh mortar bed as a slurry bond coat approximately
1/16in./1.5
mm thick; Apply slurry bond coat to back of glass
tile, mosaic, paver, trim unit or threshold and place each
piece/sheet
while slurry bond coats are wet and tacky; Beat with
a hardwood block or rubber mallet to level/imbed tilework before
mortar bed takes initial set; Clean excess
mortar/adhesive from tile surfaces.
E. Thick Bed Mortar (Horizontal Surfaces; Directly
Bonded):
1. Verify 1 in./25 mm nominal bed thickness has been
allowed;
2. Apply latex-Portland cement mortar with flat
trowel as a slurry bond coat approximately 1/16in./1.5mm thick over
clean
concrete slab or load bearing LATICRETE waterproof
membrane; Place latex-Portland cement thick bed mortar over
slurry bond coat while bond is wet and tacky; Omit
reinforcing wire fabric and fully compact bed by tamping;
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F. Grout/Pointing Joints: Verify grout joints are
free of dirt and debris. Follow manufacturer recommendations for
minimum
cure time prior to grouting. Sponge or wipe
dust/dirt off tile faces and remove water standing in joints; Apply
grout release to
face of absorptive, abrasive, non-slip or rough
textured glass tile, pavers, bricks, or trim units that are not hot
paraffin coated
to facilitate cleaning; Pack joints full and free of
voids/pits with rubber grouting float; "Squeegee" excess grout from
tile
faces using edge of rubber float and diagonal
strokes (at 45 °
angle to
direction of joints); Cleaning Portland cement grouts -
Pull/drag towel or sponge diagonally across tile
faces/joints to remove remaining grout film and allow tile work to
dry.
Hardened grout film or haze should be removed within
24 hours. Cleaning epoxy grouts - follow manufacturer’s specific
guidelines for cleaning epoxy grout installations.
Epoxy film or haze must be removed within 24 hours with a detergent
wash; do not use acid cleaners on epoxy grout less
than 7 days old.
NOTE TO SPECIFIER: select one of following and
specify color for each type/color of glass tile, mosaic, paver, trim
unit:
1. chemical resistant, water cleanable grouting
epoxy as per Paragraph 2.5 D or F or 2.8 H (for interior
installation of
virtually any type of tile, with grout joints
1/16in./1.5mm wide and larger);
2. latex-portland cement sanded floor grout as per
paragraph 2.8 Q for joint widths 1/16in/1.5mm to 3/8in./10mm);
3. latex-portland cement unsanded grout as per
Paragraph 2.8 Q (for interior installations of
absorbent/non-vitreous type
tiles, soft glazed tiles and soft/polished marble
tile with joints widths 1/8 in./3 mm or less;
G. Expansion and control joints: Provide control or
expansion joints in width and depth as located and detailed on
contract
drawings and conform to architectural details.
Existing joints in concrete sub-floors to carry through to surface
of tile work.
Make joints through tilework at least as wide as
structural joints in substrate below. Install expansion joints where
tile abuts
restraining surfaces such as perimeter walls, curbs,
columns, wall corners, etc., and directly over cold joints and
control
joints in structural surfaces. Locate interior
expansion joints a maximum of 24' x 24' (8m x 8m). Locate exterior
expansion
joints a maximum 16' x 16' (5m x 5m). Rake or cut
through tile setting bed to substrate expansion joints.
1. Follow the Tile Council of America's detail
"EJ-171 Expansion Joints".
2.
Fill joints with
packing material as specified in Section (07920).
3.
LATASIL Silicone
Sealants
NOTE TO SPECIFIER: Optimum ratio of joint layout,
length to width, is 1:1, and not greater than 2:1. Consult sealant
or premanufactured
joint system manufacturer for recommendation of
expansion joint based on project tile.
H.
ADJUSTING:
Correction of defective work for a period of (1) year(s) following
substantial completion, return to job and
correct all defective work. Defective work includes,
without limitation, tiles broken in normal abuse due to deficiencies
in
setting bed, loose tiles or grout, and all other
defects which may develop as a result of poor workmanship or
defective
materials.
3.5 CLEANING
A. Clean excess mortar from surface with water as
work progresses. Perform cleaning while mortar is fresh and before
it
hardens on surfaces. Take care to not contaminate
joints while cleaning prior to grouting. Sponge and wash tile
diagonally
across joints. Polish with clean dry cloth. Remove
grout haze following recommendation of mortar additive and epoxy
manufacturer. Do not use acids for cleaning. Upon
completion, remove all surplus materials and leave premises broom
clean.
3.6 PROTECTION
A. Protect finished installation under provisions of
Section (01500.) (01535.) Close areas to other trades and traffic
until tile
being installed has set firmly. Keep traffic off
horizontal Portland cement thick bed mortar installations for at
least 72 hours
at 70 °F/21°C.
B. Keep floors installed with epoxy adhesive closed
to traffic for 24 hrs. at 70 °F/21°C,
and to heavy traffic for 48 hours at
70 °F/21°C,
unless instructed differently by manufacturer. Use kneeling boards,
or equivalent, to walk/work on newly tiled
floors. Cure tilework in swimming pools, fountains
and other continuous immersion applications for 7-10 days at 70 °F/21°C
before flood testing or filling installation with
water. Extend period of protection of tilework at lower temperatures
below
60 °F
(15°C)
and at high relative humidity (>70% R.H.) due to retarded set times
of mortar/adhesives. Replace or restore
work of other trades damaged or soiled by work under
this section.
END OF SECTION 09310
. 2002
LATICRETE INTERNATIONAL, all rights reserved
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and
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