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Warmup Uncoupling Membrane PSW Heat Membrane 48 sq ft



Warmup Uncoupling membrane Underfloor Heating Membrane 48.75 sq ft

Roll of 48.75 sq. ft - 3' 3" x 15') 48.75 sq, ft.

Peel-and-Stick Membrane

For fast, easy installation of wire electric floor heating

For use with any other underfloor heating Cables

Warmup uncoupling membranes provide the ultimate protection of your tiles and underfloor radiant heating system from damage caused by moisture or water vapor and floor movement.

The TCNA-tested DCM-PRO Peel-and-Stick Membrane can be installed directly onto clean plywood and concrete subfloors without thinset. The patented DCM-PRO design allows for more adhesive to cable contact ultimately distributing heat faster and more evenly. There is no waiting required after installation so you can begin laying the flooring immediately. The DCM-PRO Membrane is ready to tile.

The DCM-PRO Peel-and-Stick Membrane has been successfully tested to ANSI 118.12 standards and performed well on the Robinson test (ASTM C-627). It is the highest-rated membrane for floor heating systems and the first of its kind to adhere without the use of thinset.

The Warmup DCM-PRO HEAT Membrane can be installed over the entire subfloor as an uncoupling, crack isolating and waterproofing membrane.


  • Under 6mm – 1/4” thick
  • Spacing 3 1/2” (90mm) & 4 11/16” (120mm)
  • Rated as Anti-Fracture membrane as tested by the TCNA against ASTM 118-12
  • Installs directly to subfloor, without thinset
  • Ready to tile over
  • Use any adhesives or SLU’s on top for flooring installations
  • Highest heating outputs with DCM-PRO Cable
  • Lowest running costs with 1/4” Warmup Insulation Boards (WSC-0725
  • Multiple wire-spacing options for various heat outputs and flexibility during installation
  • Compatibility with modified thinset
  • Waterproofing and vapor management*
  • Durable, lightweight uncoupling with sheer stress control


The DCM-PRO Peel-and-Stick Membrane can be installed directly over a clean plywood or concrete subfloor without thinset. For OSB subfloors or other uneven subfloors, a primer may be required to improve bonding. Always follow installation instructions and shop-vac/wet-mop the subfloor for effective bonding. The Warmup DCM-PRO Cable can be installed at 2, 3 or 4 pegs to achieve the desired heat output. See following chart.

Water-resistant and highly durable, Warm-up DCM-PRO is designed to work most effectively with Radiant floor heating cables.

For ease, installers can cut the membrane to size, peel back the protective film, and stick the membrane directly onto a plywood or concrete subfloor. Installers can use either modified or unmodified adhesives over the membrane to suit their installation needs. The DCM-PRO Peel-and-Stick Membrane can also be covered with self-levelling mortars (SLU’s) to allow installation of small format tiles and other floor types such as glue-down wood and LVT’s, to be laid on top of the DCM-PRO System. The unique design of the DCM-PRO Membrane protects the cable from installation damage, reducing the risk of cable failure.

Spacing can be adjusted to match floor and room heating needs.

Warmup DCM-PRO Heat Membrane unique design allows for:

  • Flexible heating zone selection
  • Cost and time saving installation
  • Waterproofing
  • Uncoupling crack isolation
  • Vapor management
  • Support load distribution


When installed according to the installation manual, the DCM-PRO System (DCM-PRO Cable + Peel-and-Stick Membrane) is covered by Warmup’s 30-year manufacturer warranty.

Warmup DCM-PRO Installation Manual


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