Schluter Systems Ditra-Heat-Duo-PS Peel and Stick Uncoupling Membrane with Sound Control and Thermal Break - Ideal for Multi-Story Construction - 5/16-Inch Thickness, 108 Square Feet Roll - DHDPS810M

Product Features:

• 5/16″ (8 mm) low-profile membrane minimizes assembly thickness and ensures smooth transitions between tile, stone, LVT/LVP, vinyl, laminate, engineered wood, and existing floors.
• Peel-and-stick design (DUO‑PS) eliminates thin-set during membrane installation—simply remove the release liner and embed with standard tools.
• Integrated thermal break fleece reduces heat loss to the substrate, delivering up to 70% faster thermal response, ideal for radiant floor heating over concrete slabs.
• Built-in sound control reduces impact noise in multi-story homes, condos, and commercial offices.
• Uncoupling stud structure relieves substrate stress and prevents tile and grout cracking—designed to work with DITRA-HEAT-E-HK heating cables.
• Waterproofing & vapor management: Polypropylene barrier and sub-underside channels allow moisture escape, preventing mold and protecting moisture-sensitive subfloors.
• No self-leveling compound needed—cables sit within studs, saving time and material costs.
• Strong load support—column-like mortar transfer carries heavy residential and light commercial loads.
• Flexible roll or sheet sizes (roll for large rooms, sheets for small areas) adapt to any project.
• Certified system warranty when used with compatible Schluter cables, thermostats, sealants, and mortars.
• Ideal for commercial and residential environments: baths, kitchens, foyers, basements, hotels, restaurants, offices, and high-rise apartments.
• Reduces impact sound transmission through floor-ceiling assemblies, making it ideal for multi-story construction
• Reduces heat loss to the substrate when installed over concrete
• Less mess, less cleanup, and fewer tools required
• Nominal 5/16 (8 mm) 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

Product Description:

Schluter®-DITRA-HEAT-DUO-PS is a premium uncoupling and floor heating membrane designed for both residential and commercial installations. Featuring a peel-and-stick adhesive layer, it enables clean and efficient placement directly over concrete, gypsum, plywood, OSB, or other approved substrates without requiring thin-set mortar beneath the membrane. This innovation dramatically reduces installation time while providing consistent adhesion.

Its integrated fleece layer functions as a thermal break, minimizing heat loss into the subfloor and delivering faster response times for electric radiant floor heating systems. Combined with the membrane’s studded structure, it accommodates loose-lay heating cables that can be arranged freely to target warmth precisely where needed—perfect for tile and stone floors in kitchens, bathrooms, foyers, basements, offices, and hospitality settings.

Beyond heating efficiency, this membrane delivers reliable crack isolation and sound control. It absorbs lateral substrate movement to prevent cracked tiles and grout lines, while simultaneously reducing impact sound in multi-level applications. It supports vapor management with open air channels beneath the membrane, offering a route for moisture escape and helping prevent mold or substrate deterioration in wet areas.

When waterproofing is required, joint seams can be sealed using Schluter KERDI-BAND and KERDI-COLL-L, creating a watertight assembly suitable for wet rooms, laundry spaces, and spa environments. Despite its lightweight construction, DITRA-HEAT-DUO-PS is engineered to support heavy loads across both residential floors and light commercial applications.
Compatible with thin-set mortars and a wide variety of flooring types, this system provides a complete, modern solution for uncoupling, waterproofing, floor warming, and substrate protection. With its fast installation process, integrated sound and heat insulation, and Schluter’s renowned quality assurance, DITRA-HEAT-DUO-PS is the ideal underlayment membrane for professionals and homeowners alike.

This membrane combines the larger size of the DHD810M with the uncoupling properties of other models. It offers the benefits of enhanced floor stability, waterproofing, and efficient heating capabilities. The DHDPS810M is an ideal choice for larger areas that require both a stable tile installation and effective floor heating. DHDPS810MDITRA-HEAT-DUO-PS is a peel and stick membrane that features a pressure-sensitive adhesive (PSA) to bond the membrane to the substrate, eliminating the need for thin-set mortar. Using it with a DITRA system is easy, simply remove the transparent release film from the fleece side of the membrane to expose the layer of adhesive, and embed into substrate. It provides integrated sound reduction and thermal break features.

It seamlessly integrates sound control and a thermal break to reduce noise and heat loss, ensuring an ideal environment for both residential and commercial applications in high-rise structures. This peel-and-stick membrane simplifies tile installation by eliminating the need for thin-set, ensuring a faster setup and a strong bond. This membrane offers superior waterproofing with its polypropylene composition, effectively shielding moisture-sensitive substrates in modern construction environments from moisture penetration. It features an uncoupling layer that effectively absorbs substrate movements, safeguarding your tiles against stress-induced cracks and delamination.