GENERAL SPECIFICATION FOR FIXING WHITE OR LIGHT-COLOURED MARBLE, TRAVERTINE OR GRANITE TILES ONTO INTERIOR RENDERED WALLS, AND ONTO INTERIOR SURFACE BEDS AND SUSPENDED SLABS

 

Please note that ‘general’ specifications are issued for information purposes and should not be used as project specifications.

As each and every project needs to be assessed individually on its own merits and characteristics please contact the TAL Technical Advice Centre for a project-specific detailed materials and methods specification for specific projects.

 

It is important that the tile selected is suitable for the application, preferably against a written Supplier’s specification. Factors such as water absorption, irreversible moisture expansion, MOR and PEI ratings, chemical resistance and overall stability of the product need to meet the requirements of the service conditions.

The backs of all tiles must be clean and free from dust and contaminants.

 

Please note that any “wet” areas, such as showers or balconies, should be waterproofed using TAL SUPERFLEX I or TAL SUREPROOF waterproofing compounds prior to commencing tiling. Please feel free to contact us for a specification for waterproofing and tiling these areas, as well as for technical literature on any of our products.

 

TAL PRODUCT REQUIREMENTS

The TAL products required for this installation are as follows:

TAL KEYCOAT
TAL MARBLEFIX
TAL BOND /  TAL BOND POWDER
TAL WALL & FLOOR GROUT
NOTCHED FLOOR TROWEL
SPACERS
TAL SEALMASTER CORD
TAL GOLDSTAR SEALMASTER 1000

 

Special note must be taken of the following:

Tiles:
Certain marble and travertine products have a reinforcing mesh or resin backing on the backs of the tiles which, due to the nature of the fixative / resin used to bond the mesh onto the back of the tile, is not compatible with cementitious tile adhesives. Please contact TAL if the marble or travertine product to be used for your installation has a reinforcing mesh or resin backing, so that we can advise on the correct adhesive system.

Surface Beds: All surface beds should have a damp proof membrane (DPM / DPC). Should there be no damp proof membrane below a surface bed or if prevailing moisture levels do not attain 5% (75% RH) or less, it is recommended that TAL X-CALIBUR X-SHIELD VAPORSTOP HB (vapour barrier) be applied prior to tiling to eliminate potential problems associated with excessive moisture in the substrate (such as slow- or non-curing of the adhesive, efflorescence on grout and porous tiles, etc). 
TAL X-CALIBUR X-SHIELD VAPORSTOP HB is a moisture tolerant, 100% solids epoxy barrier coat that prevents the passage of water vapour and moisture through concrete slabs. 

Please contact TAL for more information on the application of VAPORSTOP HB. 

Suspended Applications:
Tiling onto SUSPENDED concrete slabs require special precautions to be taken as the installation is prone to increased movement caused by slab deflection and creep, loading on the slab, etc. TAL BOND or TAL BOND POWDER needs to be incorporated in the adhesive and grout mix, or a single part flexible adhesive such as  TAL MARBLEFLEX needs to be used to allow for the increased movement.
NOTE: All Ground Floor levels with Basement / Parking levels below should be construed as SUSPENDED slabs. 

Tile Panel Movement Joints & Perimeter Joints: 
It should be noted that the lack of movement joints in a tile panel, or poorly constructed joints, is a major cause of tile failure. Joints must be created at the required spacing and must be well raked out to remove all traces of adhesive residues, debris, contamination, etc, ie the joint must extend through the tile and tile adhesive layers. These joints must be filled with TAL GOLDSTAR SEALMASTER 1000 Polyurethane Joint Sealant (and suitable backing cord where applicable) in accordance with the manufacturer’s instructions. (See later detail of correctly constructed tile panel movement joint and perimeter joint.) 

 

GENERAL SPECIFICATION FOR FIXING WHITE OR LIGHT-COLOURED MARBLE OR TRAVERTINE TILES ONTO INTERIOR RENDERED WALLS

 

 

 

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