Schluter®-DITRA-HEAT-DUO

Schluter®-DITRA-HEAT-DUO is an uncoupling and waterproofing membrane with an integrated bonding fleece that provides sound control, as well as a thermal break. Optionally, the system can be customized with floor heating cables to create a warm, luxurious tile floor.

  • 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
  • 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
  • Available by the roll or by the sheet to accommodate various room sizes
  • 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
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Schluter®-DITRA-HEAT-DUO is an uncoupling and waterproofing membrane with an integrated bonding fleece that provides sound control, as well as a thermal break. Optionally, the system can be customized with floor heating cables to create a warm, luxurious tile floor.

  • 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
  • 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
  • Available by the roll or by the sheet to accommodate various room sizes
  • 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
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Schluter<sup class='regsign'>®</sup>-DITRA-HEAT-DUO

Schluter®-DITRA-HEAT-DUO

Uncoupling membrane with integrated sound control and thermal break
Schluter®-DITRA-HEAT-DUO
Schluter®-DITRA-HEAT-DUO
Schluter®-DITRA-HEAT-DUO
Schluter®-DITRA-HEAT-DUO
Schluter®-DITRA-HEAT-DUO
Schluter®-DITRA-HEAT-DUO

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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 impact sound transmission through floor-ceiling assemblies, reduce heat loss to the substrate, and improve floor warming response time.

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.

All substrates must be clean, even, and load bearing. Bond inhibiting surfaces must be removed prior to the application of DITRA-HEAT-DUO. For complete installation guidelines and warranty criteria, please refer to the downloadable Schluter®-DITRA-HEAT Installation Handbook and the installation video online.

Note: Type, thickness, and format of the tile or stone surface covering must be suitable for the intended application. Minimum tile format is 2" x 2" (5 cm x 5 cm).

1. Apply thin-set mortar that is suitable for the substrate (mixed to a fairly fluid consistency, but still able to hold a notch) using the DITRA-HEAT trowel, or other 1/4" x 1/4" (6 mm x 6 mm) square-notched trowel.

2. Apply DITRA-HEAT-DUO to the floor, fleece side down. Solidly embed the matting into the mortar using a float, screed trowel, or DITRA-ROLLER, making sure to observe the open time of the bonding mortar. If the mortar skins over prior to matting installation, remove and reapply.

3. Lift up a corner of the matting to check coverage. Proper installation results in full contact between the fleece webbing and the thin-set mortar. Note: Coverage may vary with mortar consistency, angle at which the trowel is held, substrate flatness, etc. If full coverage is not achieved, remove and reapply, making sure to verify proper mortar consistency and application.

4. Abut end and side sections of adjacent sheets. Note: Aligning the studs on the top of the matting during installation can help make subsequent heating cable installation easier.

Use our DITRA-HEAT calculator to find out what products you need to complete your specific installation.

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