SchlutterregDITRA 25
SchlutterregDITRA 25 is a polyethylene membrane with interlocking square indentations, on the reverse side equipped with a fleece fabric.
SchlutterregDITRA 25 serves in conjunction with tile coverings as a sealing vapor pressure equalization layer in the presence of moisture from behind and as a decoupling layer on problematic substrates. The substrate must be level and load-bearing. For bonding SchlutterregDITRA 25, a primer mortar suitable for the substrate is applied with a notched trowel, recommended 3 x 3 mm or 4 x 4 mm. The SchlutterregDITRA 25 is then fully bonded with the fleece side in the adhesive, with the fabric mechanically anchored in the adhesive. The open time of the adhesive must be observed.
The tile covering is installed according to applicable standards in a thin-bed method directly onto SchlutterregDITRA 25, whereby the thin-bed mortar anchors into the interlocking square indentations of the SchlutterregDITRA 25 mat.
Summary of functions
- Decoupling: SchlutterregDITRA 25 decouples the covering from the substrate, neutralizing stresses caused by different deformations. It also bridges stress cracks from the substrate and prevents them from transferring to the tile covering.
- Sealing: SchlutterregDITRA 25 is a waterproof polyethylene membrane with relatively high vapor diffusion resistance. When properly installed at joints, wall connections, and penetrations, a tested bonded waterproofing with the tile covering can be achieved. SchlutterregDITRA 25 has a general building authority approval (abP) in Germany and is marked with the CE symbol. Moisture exposure class according to abP is 0, B0, as well as A and C.
- SchlutterregDITRA 25 also complies with ETAG 022 bonded waterproofing in Europe and bears the ETA (European Technical Assessment) and CE marking. Moisture exposure class according to ETAG 022 is A and C.
For areas where CE conformity or compliance with the abP general building authority approval is required, only system-tested thin-bed mortars should be used. These mortars and their test certificates can be requested at the address provided in this data sheet.
SchlutterregDITRA 25 protects the substructure from damage caused by penetrating moisture and aggressive substances.
Damp pressure equalization
SchlutterregDITRA 25 allows vapor pressure equalization through the open air channels on the underside in the ribbed areas, accommodating moisture from behind.
Load distribution and transfer
Tile coverings installed on SchlutterregDITRA 25 in the floor area should be at least 5 x 5 cm in size and have a minimum thickness of 55 mm. The membrane transmits traffic loads directly into the substrate through the square indentations filled with thin-bed mortar. Therefore, tile coverings on SchlutterregDITRA 25 are highly loadable. In areas with high traffic, such as commercial zones, tiles must have sufficient thickness and stability for the specific application. The guidelines and tile thicknesses according to the German ZDB leaflet "Mechanically highly loadable ceramic floor coverings" must be observed.
In heavily loaded areas, tiles must be fully embedded. It should be noted that the contact area of SchlutterregDITRA 25 covers approximately 50% of the total surface, which may reduce the pressure resistance under high point loads. Hard object impacts should be avoided on ceramic coverings.
Adhesion
SchlutterregDITRA 25 ensures good adhesion through the anchoring of the fleece fabric with thin-bed mortar to the substrate and the mechanical anchoring of the mortar in the interlocking indentations. Laboratory test values are approximately 0.2 Nm². Therefore, SchlutterregDITRA 25 can be used for wall and floor applications. Additional reinforcement dowels can be installed in wall coverings if needed.
Important note: Individual sections are excluded from exchange or return.
- Container: Roll
- Item weight: 21,00 kg
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