Schlüter-TREP-S and -B have aluminium support profiles. All profile types include a tread insert consisting of a rigid PVC base section and a soft PVC slip resistant surface.
Schlüter-TREP-S-E is based on a V2A stainless steel support section (material 1.4301 = AISI 304), which is made from stainless steel strips in a roll-forming process.
Tread widths:
- TREP-S / -S-E = narrow (26 mm)
- TREP-B = wide (52 mm)
The support section includes a trapezoid perforated anchoring leg for securing the profile in the tile adhesive.
Material properties and areas of application
In special cases, the suitability of a proposed type of profile must be verified, based on anticipated chemical, mechanical and/or other stresses.
Schlüter-TREP-S-E, with a support section made of stainless steel, is particularly well suited for application areas requiring resistance to chemicals and acids, in which alkaline exposure is anticipated, e.g. through the reaction of water with cementitious materials.
Schlüter-TREP-S and -B, with aluminium support sections, are resistant to the chemical stresses commonly encountered in tiled coverings on stairs. Aluminium is sensitive to alkaline media. Cementitious materials, in conjunction with moisture, become alkaline. Exposure to the alkali (depending on the concentration and time of exposure) may result in corrosion. Therefore, it is important to ensure that the profile is solidly embedded in the setting material and that all cavities are filled to prevent the accumulation of alkaline water. The support sections and treads of TREP-S-E, -S and -B differ in their thermal expansion.
Abutting profiles should therefore be aligned with the joints of the adjacent covering if necessary.