For bonding tile, use
MasterBlend mixed with CustomFlex additive.
For grouting tile, use Polyblend Sanded grout.
For waterproofing use LevelQuik Waterproffing & Anti-Fracture Membrane.
PREPARATION
-
No sealer or curing
compound shall be applied to concrete surfaces that are to receive tile.
All concrete shall be cured a minimum of 28 days prior to installation of
tile.
-
Concrete surfaces which are to
receive tile shall have a steel troweled and fine broom finish and shall
be level and true to a tolerance of 1/8" (3mm) in 8'0" (2.4m) for walls
and 1/8" (3 mm) in 10'0" (3 m) for floors. Pitch floors to drains where
required.
A mortar bed gauged with jone part Acrylic Mortar Admix
and one part water is also a suitable surface for glass mosaic tile.
-
Concrete substrates
requiring filling or patching are to be repaired with LevelQuick Skim Coat
& Patching Compound.
-
Horizontal concrete
substrates requiring leveling up to ½" are to be primed with LevelQuikTM
Concentrated Latex Primer and leveled with Custom LevelQuik or troweled
with LevelQuik Skim Coat & Patching Compound.
-
Concrete substrates
requiring a build up or leveling of the concrete between ½" and 2'"
average thickness, use Custom Float Mortar Mix with ½ water and ½ Custom
Acrylic Mortar Admix.
-
All surfaces to receive
tile are to be left clean, free from dust, oil, grease, wax, tar, paint,
curing agents, sealers, form release agents or nay deleterious substance
which may reduce or prevent adhesion.
-
The general contractor
shall be responsible for the removal of all such contaminants prior to the
commencement of the tile installation work.
-
For waterproofing or
anti-fracture membrane, apply LevelQuik Waterproofing & Anti-Fracture
Membrane according to ANSI JA108.13-1999.
EXPANSION AND CONTROL
JOINTS
Expansion joints, control
joints, insulation joints, etc., must be located in compliance with TCA
EJ171 and filled with the appropriate materials.
-
Joints must be carried through all
layers of installation materials, including tile, directly over joints in
substrate.
INSTALLATION OF TILE
GROUT
Apply mortar to the surface
to be tiled with a notched trowel (3/16" x 3/16"). **Also apply
mortar on the backside of each sheet of Glass Mosaic tiles 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.
Only as much adhesive shall be applied as can be covered with 10-15 minutes,
or while the adhesive surface is still wet and tacky. Tile shall then be set
in place and beaten gently, with a grout float to ensure 100% full bedding
and a true surface. Tile shall be lined up to show uniform joints and then
allowed to set until firm, approximately 20 to 60 minutes. Time varies on
jobsite conditions and may take longer. The face of the sheets of front
mounted glass mosaic tiles shall then be dampened and the face mount paper
removed. Excess adhesive must be cleaned from the top of the grout joint and
the surface of the tile with a wet cloth, brush or sponge while the adhesive
is fresh. Grouting may be done after the tile is firmly set. Leave tile
clean. If necessary, the day after installation grout film or haze shall be
removed using a detergent solution.
** Note -
Mosaiclegs has found
that the above step might not be necessary if the installer can get 100%
surface coverage of the tile by applying mortar to the substrate only. The
installer should experiment with a portion of a sheet of tile before
starting the job to be sure they are getting 100% tile surface coverage.
PROTECTION
Protect the finished work
form damage by other trades. Do not allow construction traffic on fresh
grout joints. Allow the grout to cure for a minimum of 7 days before
aggressive or steam cleaning.
For wet areas allow
installation to cure 14 days prior to submersion in water.
Use TileLab SurfaceGard to
seal tile installation to simplify future maintenance.
If you have any questions
about our products or require additional literature, please call (800)
272-8786.
Option 2
SPECIFICATIONS
This specification covers installation of Mesh
backed Glass Mosaic tile work in
Interior & exterior areas on Floors, Walls & Ceilings including Swimming
Pools, Fountains, Showers and Facades.
Note to Specifier:
Glass Mosaic tiles and tile installation adhesives and grouting mortars do
not constitute a waterproof barrier. Detail and specify Laticrete
9235 thin, load bearing waterproof membrane in all wet areas that
are above occupied spaces. Detail and specify Laticrete 9235 Anti-Fracture
/ Crack Suppression membrane over existing hairline cracks in subsurface.
Laticrete latex thin set adhesive mortars may be used to install tiles over
"green" or fresh concrete, screed, plaster & render surfaces. A Laticrete
"System" approach to installation is covered by a comprehensive 5 year
warrantee.
MATERIALS:
All tile, where called for, shall be: .... (Insert style, size, color of
specified Glass Mosaic Tile) .... as supplied by
Mosaiclegs, Colton, CA, USA.
Materials for setting & grouting tile shall be Laticrete 4237 Latex Thin Set
Additive mixed with Laticrete sanded or unsanded grout. Color to be
selected from Laticrete Grout color chart. Anti-Fracture / Waterproof
membrane shall be Laticrete 9235 waterproof membrane. All waterproofing,
anti-fracture, tile installation and grouting materials shall be as supplied
by Laticrete International, Bethany, CT USA. Telephone: 1 (800) 243-4788 or
(203) 393-0010, Fax: (203) 393-1684. E-mail:
support@laticrete.com,
Internet:
www.laticrete.com.
PREPARATION:
Prior to commencing the installation, the contractor shall examine the areas
to be covered and advise the General Contractor and Architect of any
existing conditions or surface contamination which will require correction
before the work commences. Before starting, surface to be covered shall be
cleaned to remove curing compounds, sealers, soil, mortar, etc. Curing
compounds or sealers shall be removed by "bead-blasting," grit / sand
blasting or mechanical "scarifying." After removal of the curing compounds
or sealers all rough, uneven or "out-of-plumb" surfaces shall be made "plumb
& true" to within 1/8" in 10' using a Laticrete 3701 / 226 leveling /
topping mortar. Dry or dusty concrete or masonry surfaces shall be wet down
or washed and excess water removed just prior to the application of the
leveling mortar, render, screed or Glass Mosaic Tile adhesive.
EXPANSION AND CONTROL JOINTS:
Existing joints in subsurface must be carried through tile work and shall
conform to architectural details. Expansion joints shall be installed where
tile abuts restraining surfaces, such as perimeter walls, curbs, columns,
corners, etc. Expansion joints shall be installed at all "changes of plane"
in the tile work.
INSTALLATION OF WATERPROOF
MEMBRANE / ANTI-FRACTURE MEMBRANE:
Waterproof membrane is installed before tile is installed in all wet areas
that are above occupied or enclosed areas. Anti-Fracture membrane is
installed before tile is installed over all hairline cracks in surfaces to
receive new tile work
MIXING:
Mix according to printed product instructions included with each product
package. Mix only long enough to wet out the batch. Do not over-mix.
INSTALLATION OF TILE BY THE
THIN BED METHOD:
The LATICRETE adhesive shall be prepared by mixing Laticrete 4237 Latex
Admix with Laticrete sanded or unsanded grout, color to be selected from
Laticrete color grout chart, and shall be applied to the surface to be tiled
with a notched trowel using a scraping motion to work the adhesive into
good contact with the surface to be covered. A trowel having "V" notches
approximately 3/16" x 3/16" - 4mm x 4mm is recommended. In addition the
colored adhesive shall be troweled onto the backside of each sheet of Glass
Mosaic tiles 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. Only as much Adhesive shall be applied as can be covered
within 10-15 minutes, or while the adhesive surface is still wet and
tacky. Tile shall then be set in place and rapped or beaten gently with a
grouting float to insure 100% full bedding and a true surface. Tile shall
be aligned to show uniform joints and then allowed to set until firm,
approximately 20 to 40 minutes. The face of the sheets of front mounted
glass mosaic tiles shall then be dampened and the face mount paper removed.
Excess adhesive must be cleaned from the surface of the Tile with a wet
cloth or sponge while the adhesive is fresh.
GROUTING AND POINTING JOINTS:
Touch up grouting of the tile work can be accomplished once the installation
mortar has become firm and the face mounted sheets of paper have been
removed. Joints shall be grouted with Laticrete Grout, color to be the same
as used for setting, fortified with Laticrete 1776 Grout Admix Plus. Joints
shall be packed full and free of all voids and pits. Excess grout shall be
cleaned from the surface as the work progresses, while grout is fresh and
before it hardens. The day after installation grout film or haze shall be
removed using a detergent solution. No acids should be used for cleaning
glass mosaic tile work.
PROTECTION:
The contractor shall take precautions to protect the finished work from
damage by other trades. Do not allow construction traffic on fresh grout
joints. Allow the grout to cure for a minimum of 7 days before aggressive
or steam cleaning.
Cold Weather Note: The
curing of tile installation mortars, adhesives & grouts is retarded by low
temperatures and finished work should be protected for an extended period
of time.
Wet Area Note: Allow tile
work in wet areas such as swimming pools, fountains & showers to cure for 10
days before exposing to immersion.
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