DutchLine – Decoupling Mat – 1m x 30m

A decoupling mat for tiled floors is installed between the subfloor and the tile layer to absorb movement and stresses that would otherwise cause cracking in tiles and grout joints. The DutchLine decoupling mat measuring 1 x 30 metres is suitable for bathrooms, kitchens and other wet areas, and is compatible with both electric and water-fed underfloor heating. Each roll gives you 30 m² of decoupling material — enough to cover a medium to large floor in a single run.

Specifications

Is this product right for your project?

This decoupling mat is designed for situations where the subfloor is subject to minor movement or temperature fluctuations, such as with underfloor heating or a timber substructure. The 1-metre width also makes the roll manageable in narrow hallways, around sanitary ware or in corners. As the mat is bonded using a suitable floor or polymer adhesive, the substrate must be flat, stable and free of dust to ensure proper adhesion of the tile adhesive to the structured surface.

If your subfloor is severely damaged, sunken or significantly uneven, a decoupling mat will not resolve those issues. Repair the subfloor first — the mat absorbs stresses but does not compensate for structural defects. With a brand-new anhydrite screed, it is also essential to wait until the correct moisture content has been reached before laying the mat.

Installation and use

A common mistake is omitting the expansion joints at the perimeter of the room. Even with a decoupling mat, perimeter joints along walls and at transitions remain essential, as the mat absorbs stresses within the tile layer but does not replace the overall floor's expansion allowance. Bond the mat to the subfloor using a suitable polymer adhesive, allow the correct open time, then tile directly onto the structured surface of the mat using a flexible tile adhesive.

Frequently asked questions

Can I use this decoupling mat under large-format tiles?

Yes — in fact, a decoupling mat is strongly recommended for large-format tiles (60x60 cm and above). Large tiles are more susceptible to stress build-up in the substrate, which increases the risk of cracking without decoupling. The structured polymer layer absorbs those stresses without reducing the bond strength of the tile adhesive.

How much does the decoupling mat raise the floor height?

The mat adds only a few millimetres to the overall floor build-up. Be sure to account for the thickness of the tile adhesive and the tile itself when calculating the finished floor height. At threshold transitions or doorways, it is advisable to measure this in advance.

Is the decoupling mat also suitable for walls?

The DutchLine decoupling mat is specified as a floor mat. Separate wall isolation systems are available for wall applications. Use this product on floors only, to ensure that the bond strength and construction are loaded correctly.

Browse our complete shower collection or our bathroom furniture if you'd like to tackle the rest of the bathroom at the same time.

Item number: DL_634818
EAN: 8721189807205

Netherlands & Belgium: Order before 2pm, delivered within 2 working days

Germany: 1–3 working days

Rest of Europe: 3–8 working days

See our delivery page for more information here.

We offer a 30-day returns or exchange policy if you're not completely satisfied with your order for any reason. For more information, please see our Returns Policy here.