2024-25_NTCA_Reference_Manual_dig_dwnld

Pressed Cement Tile

Problem

Prevention

Cure

Thickness variation from tile to tile

Each tile is manufactured one piece at a time. You can anticipate thickness variation as normal.

Visually inspecting and shuffling tiles to get a blend. Dry lay tiles as a mockup before installing. Use the proper mortar for installation. Use a non-sag mortar. There will need to be some adjustments during the installation due to thickness variation of the tiles. Use a qualified contractor or installer that is familiar with these types of tile. Follow manufacturer installation instructions. Visually inspect tiles when unpacking. Notify supplier immediately upon receiving damaged material. Do not install before discussion with supplier for new product. Excess moisture will migrate back through the tile surface. Remove tiles from boxes and air dry before installing. May need to perform a simple moisture test with visqueen. Visually inspecting and shuffling tiles to get a blend. Dry lay tiles as a mockup before installing. Use the proper mortar for installation. Use a non-sag mortar. There will need to be some adjustments during the installation due to thickness variation of the tiles. Use a qualified contractor or installer that is familiar with these types of tile. Follow manufacturer installation instructions. Some manufacturers have cleaning products to aid and possibly remove stains. It may require several steps or products to achieve desired results. One method may be to lightly wet sand the tiles. You can use multiple grits to achieve the results you are seeking. Follow manufacturers instructions when using urethane or hybrid grouts. Grout small sections at a time and cleanup before moving to the next section. This process is more tedious and time consuming. Allow proper time and do not get over anxious during the process.

Tiles chipped or cracked

Poor handling or packaging

Wet tiles in boxes

May have excess moisture trapped in boxes from packaging and/or/shipping

Thickness variation from tile to tile

Each tile is manufactured one piece at a time. You can anticipate thickness variation as normal.

Stains on surface from mortar and grout residue

Not pre-sealing tile or using a grout release before grouting. Not properly cleaning the surface from setting mortar or grout. Cementitous grouts have Portland cement and may contain color pigments that can migrate into the microscopic pores and can prove to be very difficult or impossible to remove.

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NTCA Reference Manual | 2024 / 2025

Chapter 5 | Material Specific Products and Installation