Schluter-DITRA-HEAT-DUO integrates customizable, comfortable electric floor warming with the functions of DITRA: uncoupling, waterproofing, vapor management and support to ensure a long lasting installation. DITRA-HEAT-DUO features an integrated thermal break to reduce heat loss to the substrate, improve floor warming response time, and reduce sound transmission through floor-ceiling assemblies. Sound Control Controlling impact sound transmission through floor-ceiling assemblies in multistory construction can present challenges, particularly when ceramic and stone tiles are used. Sound control materials tend to be compressible and not all provide adequate support for tile covering in thin-set applications. DITRA-HEAT-DUO reduces sound transmission, while supporting the covering to ensure a lasting installation. Floor Warming DITRA-HEAT-DUO combines the flexibility of loose heating cables with the ease of installation of mat systems. Cables can be placed wherever heat is desired, without creating height differences in the floor. Self-leveling compounds are not required to encapsulate the cables, significantly reducing installation time and effort. Uncoupling Tile has been successfully installed for thousands of years by incorporating an uncoupling layer, or forgiving shear interface, within the tile assembly. DITRA-HEAT-DUO provides uncoupling through its geometric configuration, which allows for in-plane movement that effectively neutralizes the differential movement stresses between the substrate and the tile, thus eliminating the major cause of cracking and delaminating of the tiled surface. Waterproofing DITRA-HEAT-DUO provides reliable waterproofing. Its polypropylene composition protects the substrate from moisture penetration, which is particularly important in today’s building environment where most substrates are moisture-sensitive. Vapor Management The free space on the underside of DITRA-HEAT-DUO provides a route for excess moisture and vapor to escape from the substrate that could otherwise cause damage to the tile covering above. Thus, DITRA-HEAT-DUO effectively manages moisture beneath the tile covering. Support/load distribution When placed on a solid foundation, columns or pillars can support tremendous loads. The same physical principle applies to DITRA-HEAT-DUO installations. Column-like mortar structures are formed in and between the studs on the surface of the matting. Loads are transferred from the tile covering through these column-like mortar structures to the substrate. Since DITRA-HEAT-DUO is virtually incompressible within the tile assembly, the advantages of uncoupling are achieved without sacrificing point load distribution capabilities. Alternate Floor Coverings over DITRA-HEAT DITRA-HEAT is suitable for applications with engineered wood, vinyl, wood plastic composite (WPC), luxury vinyl tiles (LVT), luxury vinyl planks (LVP), stone plastic composite (SPC) tiles and planks, and laminate flooring. See the Alternate Floor Coverings over DITRA-HEAT Technical Bulletin for more information, including requirements and limitations.

• Features integrated sound control and thermal break
• Reduces impact sound transmission through floor-ceiling assemblies, making it ideal for multi-story construction
• Reduces heat loss to the substrate for up to 70% faster heat-up times over concrete during temperature increase demands
• Nominal 5/16” (8mm) thickness minimizes tile assembly thickness and reduces transitions to lower surface coverings
• Self-leveling compounds are not required to encapsulate the cables into the membranes
• The stud structure of DITRA-HEAT-DUO is specifically designed to allow for the easy installation of DITRA-HEAT-E-HK heating cables
• Quick and easy to install and few tools are required
• Patent pending
• Provides electric floor warming for use beneath tile, stone, or other resilient floor coverings (e.g. LVT)
• Can be installed for floor heating under tile, natural stone and other vinyl flooring (e.g. LVT)