Schlüter-DITRA-HEAT-DUO features a 2 mm special anchoring fleece on the underside, which bonds with the adhesive, while also reducing impact sound and enabling a faster heat-up response. The substrate for the installation of DITRA-HEAT must be level and ready to bear weight.
Schlüter-DITRA-HEAT-DUO is installed in thin-bed adhesive suitable for the substrate with a notched trowel (recommended size: 6 x 6 mm). The anchoring fleece on the underside of DITRA-HEAT-DUO is then fully embedded in the adhesive to ensure a mechanical bond of the fabric in the adhesive. The curing window of the adhesive has to be taken into consideration. In floor areas, the heating cables can be installed immediately after adhering DITRA-HEAT-DUO matting with a minimum spacing of 9 cm (every third stud = 136 W/m²).
In the case of wall installation, the heating cables are installed once an adequate adhesive bond has been reached. Installers can choose between installation spacing of 6 cm (every second stud = 200 W/m²) and 9 cm (every third stud = 136 W/m²). The use of mats is recommended for wall areas. The tile or stone covering is professionally installed directly over DITRA-HEAT-DUO membrane in accordance with the applicable standards. The bedding adhesive anchors with the cut-back stud structure of the DITRA-HEAT membrane.

Schlüter-DITRA-HEAT-DUO is waterproof and can withstand all chemical stresses that typically occur in conjunction with tile coverings. Where required, an approved bonded waterproofing assembly can be created with DITRA-HEAT-DUO in specific areas.

Suitable Substrates:

• Concrete
• Cementitious Screeds
• Plywood Panels
• Wooden Floors
• Gypsum Screeds
• Heated Screeds
• Masonry / Mixed Substrates
• Plaster / Gypsum
• Synthetic Coverings and Coatings