Solutions for impact sound insulation beneath dry screeds
Isolgomma solutions for use beneath dry screeds are designed to reduce impact noise while retaining high mechanical stability and keeping the weight and thickness of the building assembly to a minimum.
Installing a resilient underlay beneath the dry screed creates a floating floor system that decouples the floor finish from the floor structure.
This solution is particularly suitable for refurbishment projects, timber structures and applications where wet construction methods must be avoided and installation times reduced.
Excellent environmental performance
Up to 90% recycled material
Certified quality
Predalles slab
Solution for precast concrete floor slabs
Predalles slabs are widely used in residential and multi-storey buildings, offering high stiffness and good load-bearing capacity.
However, these structures can transmit impact noise. To improve acoustic performance, a resilient layer can be installed beneath the dry screed, with suitable perimeter isolation to limit acoustic bridges. This helps reduce vibration transmission and improve impact sound insulation and overall acoustic comfort.
Our products
Concrete slab
Solution for reinforced concrete floor slabs
Reinforced concrete slabs are versatile structural elements used in residential, public, hospitality and commercial buildings. Their seismic performance depends on the overall structural design.
Their mass helps limit airborne sound transmission, but impact noise may still pass through the structure. A floating dry screed installed over a resilient underlay can improve impact sound insulation while keeping the additional build-up thickness relatively low.
Our products
Timber joist floor
Solution for traditional timber joist floors
Beam-and-board floor structures have a low mass and are more susceptible to impact noise transmission, particularly when refurbishing historic buildings.
Using a resilient underlay in combination with a dry floor build-up or dry screed improves acoustic performance without adding excessive weight to the structure.
The dry floor build-up also helps keep loads down, speeds up installation and provides a solution compatible with the features of the existing floor structure.
Our products
| Product | Ln,w (dB) | Rw (dB) |
|---|---|---|
| SYL 10AD | 59 | 59 |
CLT floor
Solution for CLT floors
Dry construction systems integrate easily with CLT floor structures, helping to keep weight and installation times down to a minimum.
An resilient acoustic insulation underlay installed beneath the dry screed decouples the floor finish from the structural panel and reduces the transmission of impact noise.
Where necessary, incorporating heavy dry-fill materials increases the mass of the building assembly and also improves its performance against airborne noise.
Our products
| Product | Ln,w (dB) | Rw (dB) |
|---|---|---|
| UPGREI | 53 | 59 |
Easy installation
Correct installation is essential for achieving the intended acoustic performance. Watch our installation video for clear, practical guidance on fitting our products correctly and safely.
