Stravifloor Channel

Isolated Channel System

Stravifloor Channel is an isolated steel batten system for the support of concrete but mainly lightweight, panelized floating floors applications, using strong, galvanized steel channels over the isolation pads.

This system improves the structural stability of the floating floor and provides lower differential deflection resulting from live load or concentrated loads. It also allows for larger isolation pad spacing, which reduces material and installation costs, and increases acoustical performance through optimization of pad loading and fewer contact points (transmission paths) to the subfloor.

Stravifloor Channel is the ideal choice to maximize noise insulation when an existing structure cannot support a heavyweight floating concrete slab.

Main Characteristics

  • Natural frequency: ≥ 6 Hz
  • Product standard height: 30 mm and 50 mm
  • Minimum system height: 76 mm (timber/cement Board) and 136 mm (concrete/screed)
  • Minimum air gap: 36 mm

Benefits

  • Specifiers

    For Specifiers

    Guaranteed Acoustical Performance
    • Possible to design with different bearing types (elastomeric bearings, springs, both with different load capacities or natural frequency) to cope with different criteria, both acoustically or load-related
    • Natural rubber bearings provide a low, stable natural frequency over a wide load range, combining high dynamic stiffness with minimal deflection and low creep for long‑term performance
    Reliable Long-term Performance
    • When panelised/dry solutions are used, easy to dismantle or upgrade the solution in case of different load conditions or acoustic criteria
    Design Flexibility & Adaptability to Architectural Constraints
    • Suitable for wet and dry floating floor constructions
    • Ideal for lightweight renovation and refurbishment projects
    • Enhanced stiffness and stability through galvanised steel channels
    • Flexible system for varying loads, build-ups and heights
    Versatility Across Applications and Constructions
    • Easy integration of services within the system void
    Proven Performance (& Sustainability)
    • Acoustic laboratory test data available
    • Environmental Product Declaration (EPD) 
    Easy to Specify
    • Easily integrate into project documentation and workflows with ready-to-use .dwg cross-sections and editable .doc specifications available online
    • Listed in external prediction tools and databases, e.g., INSUL, Acoulatis and SOAB database
  • Installers

    For Contractors

    Reduced Installation Time and Labour Costs*
    • Straightforward and quick installation process
    • Galvanised steel channels are delivered with isolation bearings preassembled, facilitating the correct positioning on site

    • Comprehensive installation manuals and shop drawings

      *Installation services available by CDM Stravitec team, or at least installation supervision

    Simplified Logistics and Site Handling (and Reduced Waste or and Reduced Error Chance)
    • Colour coded bearings
    • Isotropic elastomeric pads
    Compatibility with Building Systems
    • Seamless integration of services within the solution void

Acoustical Test Data

This solution has been tested under the setup shown alongside, among others. If you’re looking for official test reports, editable test data (.csv) and typical cross sections (.dwg) of this setup or results of other configurations, visit Stravi‑dB, our free online test library.

STRAVI-DB

  • Information Available to Download

Case Studies

  • Broadway Central

    Broadway Central

    198 Renfield Street, Glasgow: CDM Stravitec transformed the site into high-performance student housing with advanced acoustic isolation for dense urban living.

  • Dienstencentrum Gentbrugge

    Dienstencentrum Gentbrugge

    CDM Stravitec delivered a lightweight dry floating floor for the new rooftop ballet studios, ensuring structural compatibility and high acoustic performance.

  • Tour Litwin (exterior)

    Tour Litwin

    A Stravifloor Channel floating floor mitigates the transmission of noise and vibration towards the guest rooms at Mama Shelter hotel in the new Tour Litwin.

  • AppIn Gym (interior)

    AppIn Gym

    Located in a mixed-use building, AppIn Gym needed to be acoustically isolated using a Stravifloor Channel system and elastomer Stravilink PHS-S hangers.

  • KEXP Radio Station

    KEXP Radio Station

    KEXP Radio Station gave an exciting acoustic update to the station’s performance space with the installation of a high-performance Stravifloor Channel system.

  • Rotterdam Ahoy Convention Centre (exterior)

    Rotterdam Ahoy

    The floor of the RTM Stage at Rotterdam Ahoy Convention Centre is installed on Stravibase SEB elastomeric bearings. Stravilink WallFix isolators decouple walls.

  • GTC White House

    GTC White House

    The 7th floor HVAC area of GTC White House in Budapest is acoustically isolated from the rest of the building using a Stravifloor Channel floating floor system.

  • Equinox

    Equinox

    To reduce the impact noise levels from falling weights at Equinox gym in London, a dry and lightweight Stravifloor Channel floating floor was installed.

  • Four Seasons Hotel Gresham Palace (exterior)

    Four Seasons Hotel

    The Stravifloor Channel acoustic floating floor at the Four Seasons Hotel Gresham Palace was designed to provide maximum isolation and minimum deflection.

  • Everyman Cinemas (interior)

    Everyman Cinemas

    Stravifloor Channel and Stravifloor Deck floating floors isolate the theatres at Everyman Cinemas in Harrogate. Wall and ceiling hangers complete the design.

  • Melopee School (exterior)

    Melopee School

    To isolate the sports hall located on the third floor of the Melopee School (Oude Dokken) in Ghent, a lightweight Stravifloor Channel system is installed.

  • Thorpe Park PureGym (free weight area)

    Thorpe Park PureGym

    To ensure that gym activities within Thorpe Park PureGym don’t cause problems within the restaurant and shops located below, a Stravifloor Channel is installed.

  • DIT Grangegorman East Quad (architectural rendering)

    DIT Grangegorman East Quad

    At DIT Grangegorman East Quad a Stravifloor Channel, a Stravifloor Deck floating floor, and Stravifloor WallFix isolators are installed to isolate the rooms.

  • Eiffel Art Studios (interior)

    Eiffel Art Studios

    Resilient Stravifloor Mat continuous mats, wall braces and machine isolation pads are installed in the most critical rooms of Eiffel Art Studios in Budapest.

  • Hertsi Shopping Center (exterior)

    Hertsi Shopping Center

    Stravifloor Mat and Stravifloor Channel systems reduce low-frequency noise from rolling pallet stackers and shopping carts in the Hertsi Shopping Center.

  • Canal 11 Studio (exterior)

    Canal 11 Studio

    The technical equipment room located directly above the main television studio of Canal 11 Studio in Portugal, features a Stravifloor Channel system.

  • The Residence - Moxy Hotel Antwerp

    Moxy Hotel

    The skybar of the Moxy Hotel on the fifth floor of The Residence, a mixed-use building in Antwerp, is acoustically isolated by means of a Stravifloor Channel.

  • Zahálka - Phase I (exterior)

    Zahálka (Phase I)

    To prevent vibrations from the nearby railroad to cause noise problems in the Zahálka development project in Prague, CDM Stravitec solutions were installed.

Stravifloor Channel and Sustainability

The CDM Stravitec Stravifloor Channel solution is now supported by an independently verified Environmental Product Declaration (EPD), providing transparent and third-party validated life-cycle data for informed specification.
For specifiers and project managers working on sustainability-driven projects, this means access to reliable GWP values, defined system boundaries, and standardized environmental indicators aligned with green building frameworks.
Read our latest article to understand how it can support your project documentation and environmental assessments.

Read More

Technical Bulletin: Stravifloor on CLT Slabs

This Technical Bulletin summarizes the key findings of an extensive test campaign studying the acoustical performance (airborne sound reduction and impact noise isolation) of lightweight Stravifloor systems in combination with cross-laminated timber slabs.

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