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Warmup DCM-PRO System
A self-adhesive decoupling membrane and heating cable system that combines the fast fitting of StickyMat with the flexibility of Loose Wire — protecting tiled floors from cracking while heating them.
What Is The DCM-PRO System?
Warmup DCM-PRO is an electric underfloor heating system built around a self-adhesive decoupling membrane mat, paired with a heating cable that clips into the mat's castellations. Mat, cable and thermostat are purchased separately, so the system can be specified to fit the exact room.
DCM-PRO combines the ease of fitting of Warmup StickyMat with the flexibility of Warmup Loose Wire. Fitting around an obstacle — a toilet, for example — simply means trimming the mat to shape and routing the cable around it, without the risk of cutting into a pre-fixed StickyMat cable or the time it takes to lay a fully loose wire system from scratch.
The decoupling layer sits between the subfloor and the floor covering, absorbing lateral movement as the subfloor expands and contracts with the seasons — reducing the risk of cracked tiles or grout lines over time. It's suitable for tile, engineered wood, vinyl and carpet floor finishes.
Membrane Options
DCM-PRO is available with two membrane backings. We currently stock the Peel-and-Stick membrane as standard — the Fleece-Backed option can still be sourced and fitted, just call our team to arrange it.
- Thickness: 5.8mm (±0.5mm)
- 0.73m² mat or ~14m² roll
- Thickness: 6.1mm (±0.5mm)
Cable Options
The 4.5mm multi-strand, dual-core heating cable is insulated with advanced fluoropolymer, making it tough and easy to tile directly over. It clips into the mat's castellations by hand — no tools needed, just run a thumb along the cable to guide it into place.
1m² of cable is designed to fit 1m² of mat at the recommended spacing, and spacing can be adjusted to increase or decrease both coverage and power output.
| Cable Spacing | Castellations | Output (Standard Cable) |
|---|---|---|
| 60mm | 2 | 225 W/m² |
| 90mm (recommended) | 3 | 150 W/m² |
| 120mm | 4 | 112.5 W/m² |
Installation, Step By Step
It's recommended that DCM-PRO is installed on top of thermally insulated tile backer board, giving a flat, heat-insulated surface. Alternatively, it can be fixed to a clean, dry subfloor primed with an SBR primer at a 1:4 ratio.
Use In Wet Rooms & Walk-In Showers
With the addition of Warmup's DCM-PRO waterproofing tape at the joints, and internal/external corners at wall junctions, the DCM-PRO membrane doubles as a waterproofing layer — installed to the recommended method set out in Warmup's installation guide, the system is suitable for use in a full wet room or walk-in shower environment.
Corners are worth specifying wherever the installation meets a wall junction: they're most exposed to splashes and pooling water in a fully tiled wet room, and Warmup's corner pieces are designed specifically to protect the cable and connections at those points.
Technical Specifications
| Cable | |
|---|---|
| Operating voltage | 220–240V, 50Hz |
| IP Rating | IPX7 |
| Colour | Blue |
| Thickness | 4.5mm (±0.2mm) |
| Output rating | 150W/m² at 90mm spacing (3 castellations) — adjustable 112.5–225W/m² |
| Inner insulation | Advanced fluoropolymer (ETFE) |
| Min. installation temp | 5°C |
| Connection | 3m long 'Coldtail' connection |
| Approvals | CE, UKCA, BEAB |
| Mat — Peel-and-Stick (stocked) | |
|---|---|
| Thickness | 5.8mm (±0.5mm) |
| Composition | Polypropylene membrane, self-adhesive backing |
| Colour | Red |
| Cable spacing | 60mm, 90mm & 120mm |
| Sizing | 0.73m² sheet (985mm x 741mm) / ~14m² roll (14,250mm x 985mm) |
| Mat — Fleece-Backed (call for details) | |
|---|---|
| Thickness | 6.1mm (±0.5mm) |
| Composition | Polypropylene membrane, fleece backing (for use with adhesive) |
Guarantee & Approvals
Rated 'High Performance', DCM-PRO is proven to protect tiled floors from cracking as tested to ANSI 118.12:5.4 (American National Standards Institute).
Warmup's DCM-PRO system carries a lifetime warranty as standard, when installed to the manufacturer's instructions.
Accidentally damage the system during installation? Return it to Warmup and they'll replace it with the same make and model, free of charge.
DCM-PRO FAQs
What's the difference between DCM-PRO and StickyMat? +
StickyMat has the cable pre-fixed to the mat at a set spacing, which is fast to fit but less flexible around obstacles. DCM-PRO uses a separate mat and cable that clips in by hand, giving you the fast, tool-free fitting of StickyMat with the flexibility to route the cable exactly where it's needed — useful in rooms with fixed obstacles like a toilet or vanity unit.
Can DCM-PRO be used in a wet room or walk-in shower? +
Yes — with Warmup's DCM-PRO waterproofing tape at the joints and internal/external corners at wall junctions, installed to the method in Warmup's installation guide, the system is suitable for a full wet room or walk-in shower environment.
Do I need insulation board with DCM-PRO? +
It's recommended. Installing on top of thermally insulated tile backer board gives a flat surface insulated against heat loss into the subfloor, improving heat-up time and running costs. If insulation board isn't used, the mat can instead be fixed to a clean, dry subfloor primed with SBR primer at a 1:4 ratio.
How long do I need to wait before tiling? +
No waiting time. Once the mat is fixed, the cable is clipped in, and cable resistance has been checked, tiling or self-levelling compound can be applied straight away.
Which floor finishes is DCM-PRO suitable for? +
Tile, engineered wood, vinyl and carpet, all certified for use with underfloor heating, at a constant output of 150W/m² with the standard cable at recommended spacing.
You'll Also Need
Everything to complete a DCM-PRO installation
You'll also need a thermostat — browse the range →
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