Detailed Description

FixMat Sound 2.1 SD professional underlay. Roll: 7.5 m²

Floor underlay with integrated vapour barrier for engineered timber and laminate flooring. By maintaining the correct balance between the mat’s density and thickness, we have succeeded in designing an eco-friendly product that optimally meets all the requirements of a high-quality product.

Basic technical parameters (for engineered flooring):

Sound insulation ~ 19 * dB
Thermal resistance ~ 0.009 m²K/W
With integrated vapour barrier (to be sealed with aluminium tape / included free of charge in the pack)
Fire resistance class (flame-retardant – for construction work) – BflS1

Eco-friendly product

FixMat Sound 2.1SD is a high-quality, eco-friendly product made from up to 90% natural materials, including minerals and polyurethane binders. The product contains no plasticisers, asbestos, formaldehyde, halogens or heavy metals. It complies with the French AFSSET A+ guidelines regarding VOC (Volatile Organic Compounds) requirements. The product bears the ‘BLUE ANGEL’ label – an eco-label confirming that it is safe for the environment and people.

Non-flammable

Thanks to its high mineral content, the underlay has a Class BflS1 ‘non-flammable’ fire-retardant rating, meaning it can be used in public buildings.

Sound-absorbing

Thanks to its unique structure, the underlay adapts perfectly to the subfloor and floorboards, providing acoustic comfort comparable to that achieved with a glued floor: • Provides acoustic insulation of up to 19 dB – perfectly dampens footsteps audible in rooms below – transforming high-pitched, tiring sounds into low-pitched, pleasant ones. • Improves acoustics by approx. 30 per cent – reduces floor noise audible indoors, e.g. footsteps.

Suitable for underfloor heating

Thanks to its high density of 860 kg/m³, it offers excellent thermal conductivity. The underlay is ideal for installation in rooms with underfloor heating, as its thermal resistance coefficient is just 0.009 [m² K/W]. It does not block heat. This is the best performance among underlays available on the market for sound-insulating timber floors. Its low thermal resistance means it can also be used with underfloor cooling systems.

With an integrated vapour barrier

In addition, the underlay has an integrated vapour barrier. No additional foil is required. This allows you to save a step in the installation process. Simply join the edges of the underlay with metallised tape. In this way, the floor is protected against moisture from the subfloor. A roll of tape (38 mm x 20 m) is included in the centre of each pack of underlay.

Safe

Thanks to its high density, the underlay offers high resistance to both static and dynamic loads; its properties remain unchanged over the years. This is particularly important for the safety and protection of the interlocking joints used in adhesive-free board installations.  

Durable

The highest resistance to dynamic loads on the market. The mat’s base material is made from a durable raw material. It does not oxidise and retains its properties – with a calculated service life of at least 30 years. The service life was calculated on the basis of Barlinek’s internal research carried out under laboratory conditions, which also demonstrated that the use of FixMat SOUND has a positive effect on the performance and service life of wooden flooring.