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Special offers / Remaining stock
Special offers / Remaining stock

Underlay sheets and cork strips

Underlayment membranes and cork strips form a functional base for various floor constructions. They can improve acoustics, level out minor unevenness, and, depending on the product, contribute to moisture protection.

6 products

Now available at Gunreben.de in the usual top quality:

Underlayment/Cork Strips – The Smart Foundation for Every Floor

A great floor starts out of sight: with the right underlayment. Our underlayments and cork strips can reduce noise, smooth out minor unevenness, and, depending on the product, protect against rising damp – for everything from parquet and vinyl to laminate.

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Why underlayments are important

Underlayments are more than just "insulation" – depending on the type, they influence the comfort, acoustics, and function of the floor structure.

  • Impact and walking sound insulation: noticeably quieter living
  • Moisture protection: integrated vapor barrier protects against rising residual moisture
  • Leveling & stability: compensates for minor unevenness
  • Connection protection: suitable underlayments can relieve stress on click systems
  • Efficient heating: suitable underlayments optimize heat transfer for underfloor heating

Tip: Maintain your floor properly from the start – with care products, hardwood floor oil, or parquet sealant.

Underlayments at a glance

Every floor has different requirements. These underlayments are tried and tested:

1) Cork Underlayments

A natural all-rounder with excellent sound reduction and pleasant elasticity – ideal for parquet and laminate.

  • Elastic and sound-absorbing
  • Use: floating parquet/laminate floors, living and sleeping areas

2) Combination Underlayments with Vapor Barrier

Underlayments with an integrated moisture barrier – useful on mineral substrates (screed).

  • Protection against residual moisture, time-saving, safe
  • Use: specifically under vinyl design floors and laminate

3) High-Density Foam Underlayments

Very consistent support with good compensation for minor unevenness, often with excellent impact sound ratings.

  • Easy to install, good value for money
  • Use: renovations, apartment buildings

4) Specialized Acoustic Mats

For high acoustic demands – e.g., in old buildings or commercial spaces.

Discover suitable options in our underlayments category.

Cork strips: application & benefits

Cork strips are targeted problem-solvers for decoupling, leveling, or specific soundproofing needs.

  • Under support beams and wooden sub-constructions for decoupling
  • As edge decoupling against walls and stairs
  • To compensate for minor height differences
  • To reduce structure-borne noise in wood-on-wood structures

Alternative for outdoor or terrace construction: rubber pads made of rubber granules or solutions for the sub-construction.

How to choose the right underlayment

Consider these criteria when selecting a product:

  • Floor type: Parquet, laminate, SPC/vinyl? (e.g., Traffic SPC Click 6.5 mm)
  • Substrate: Screed, old flooring, wood? Is there residual moisture?
  • Acoustics: desired dB reduction for impact and walking sound
  • Thermal resistance (R-value): important for underfloor heating
  • Moisture protection: is an integrated vapor barrier required?
  • Installation method: floating or full-surface glued (see adhesives)

Good to know: For solid flooring like solid parquet, full-surface gluing is often recommended; thin acoustic mats can serve as decoupling here.

Installation in brief

This is how to install the underlayment – simple, clean, and safe:

  1. Inspect and prepare the substrate: must be level, clean, and dry (note CM measurement)
  2. Determine moisture protection: if necessary, use a combination underlayment with a vapor barrier
  3. Roll out the sheets: avoid overlaps, butt edges together, and tape seams if necessary
  4. Keep expansion joints free at the edges; place cork strips precisely under support beams
  5. Install the flooring according to the manufacturer's instructions; finish with skirting boards

Find more accessories here: flooring accessories and care products.


Conclusion & next steps

The right underlayment makes the difference – for acoustics, comfort, and a technically sound floor structure.

FAQs

Underlayments form the functional layer between the subfloor and the floor covering. They can reduce impact and walking noise, level out small irregularities, relieve stress on click connections, and, depending on the product, protect against rising moisture. Which underlayment is appropriate depends on the floor type, subfloor, installation height, and installation method.

Cork strips are used when specific decoupling, leveling, or insulation is required. They can be used, for example, under sleepers, in edge areas, or to reduce structure-borne noise in wood-on-wood constructions. They also help to compensate for minor height tolerances.

For vinyl and SPC, thin, pressure-resistant underlayments that match the respective floor type and click system should be used. For mineral subfloors, an integrated vapor barrier may be useful. A low installation height, sufficient compressive strength, and an underlayment approved by the flooring manufacturer for the application are important.

Whether an underlayment is suitable for underfloor heating depends on the thermal resistance, the floor covering, and the overall structure. The underlayment should conduct heat well and be approved for heated floor structures. With underfloor heating, the lowest possible thermal resistance is important so that the heating output is not unnecessarily hindered.

Before installation, the subfloor must be clean, dry, level, and load-bearing. Depending on the product, underlayments are rolled out, butt-joined, and, if necessary, taped at the joints. Edge gaps, moisture protection, and the flooring manufacturer's specifications should be observed so that the floor remains stable later on.