SilentStep® System

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AFD SilentStep® System

The AFD SilentStep® System is a residential acoustic hollow floor designed to reduce airbourne & impact sound transmissions whilst providing a solid-like feel that can accept finishes directly. With a quicker installation time than traditional cradle & batten, the Silent Step System is also suitable over an uneven subfloor or when there is a higher void requirement

Components

  • Knauf GifaFLOOR FHB 25 Structural Gypsum Fibre Dry Screed Panel
  • Knauf GifaBond Blue T&G Adhesive
  • SilentStep® Pedestal For Voids 23mm-200mm
  • SilentStep® Pedestal+ For Voids 200m+
  • SilentStep® Acoustic Pedestal Pad
  • SilentStep® Acoustic Perimeter Strip
  • SilentStep® Pedestal Adhesive
  • SilentStep® Pedestal Thread Lock
  • SilentStep® SubFloor Sealer

Specification

SilentStep® is a high-performance acoustic hollow floor system designed for a residential application. The Knauf GifaFLOOR structural dry screed panel – FHB25 is installed on the SilentStep® Pedestal system that creates a void ranging from 23mm-400mm. Incorporating the SilentStep® Acoustic Pad – the overall system performs creates a comfortable living environment by reducing sound transmission and offering a comfortable feel under foot for any finish

Dry Screed Panel Dimensions 1200x600x25mm
Weight Per Panel 29.2kg
Weight Per M2 40.6kg
Panels Per Pallet 35
Void Heights 23mm – 200mm – SilentStep® Pedestal
Void Heights 200mm-400mm – SilentStep® Pedestal+

Structural Performance

SilentStep® offers excellent structural stability, capable supporting loadings with a minimal deflection. This is largely due to the high density that GifaFLOOR FHB25 offers (1500kg/m3). This makes the structural floor suitable for a wide range of finish options including ceramics, timber, vinyl and more.

There are two layout options for the SilentStep® understructure depending on the load and deflection requirements. Pedestals are quick and easy to install. SilentStep® Pedestal Adhesive is applied to the base, and placed onto the subfloor according to a pre-arranged setting out grid. The Pedestal head can the be precisely spun to the correct height and locked using SilentStep® Pedestal Thread Adhesive.

Point Load (25x25mm Stamp Applied)
Standard Pedestal Layout – 600mm centres & 300mm at perimeter 3kN @ 1.8mm deflection
2kN @ 1.3mm deflection
1kN @ 0.8mm deflection
Extra Pedestal Layout 600mm centres, 300mm at perimeter + Extra pedestal in centre of panel 4kN @ 2.0mm deflection
3kN @ 1.5 deflection
2kN @ 1.1mm deflection
1kN @ 0.6mm deflection

Fire Characteristics

The SilentStep® system does not contain any material that is susceptible to fire. As such it performs extremely well from a fire resistance & fire reaction aspect. As opposed to traditional cradle & batten systems, there is no timber or plastic involved.

GifaFLOOR FHB25 Density
(EN-15283-2)
≥ 1500kg/m3
Reaction to Fire
(EN-13501-1)
Class A – Non Combustible
Fire Resistance
(EN-13501-2)
30 Minutes (REI 30)

Acoustic Performance

The high density of the GifaFLOOR FHB25 Screed Panel combined with the SilentStep® Acoustic Pad provides a structural floor system that performs to an excellent acoustic standard. This ensures that neighbours in adjoining apartments or flats will have significantly less chance of hearing each other and therefore live happily in a comfortable environment

Acoustic Performance Tested Independantly
Weighted Sound Reduction Index
Rw (C, Ctr)
63 dB
Weighted normalised impact
sound pressure level
(Ln,w)
69 dB
Impact Sound
ΔLw
22 dB

Environmental

The SilentStep® system incorporates the highly sustainable Knauf GifaFLOOR FHB25 dry screed panel which is manufactured from gypsum fibre. Gypsum Fibre is made from 3 simple materials. Gypsum which is a naturally occurring material extracted from the ground, recycled cardboard & paper and water. FHB25 has been independently certified for sustainability using a lifecycle assessment and documented via an Environmental Product Declaration. There are no FSC requirements for this system

Declared Unit / Product 1m2 of Knauf Gypsum Fibre Panel to density of 1500kg/m3
EPD Tested to ISO 14025 and EN 15804+A2
Valid Until 25/06/2028
Total Recycling Share Up to 85%
Recylablbility at end of life 100%
GWP-Total kg CO2 eq LCA A1-A3 – 1.22kg

Lifecycle Process

Environmental cont.

Compared to other materials such a concrete screed boards, gypsum fibre boards are manufactured from naturally occurring Gypsum. As a result, the SilentStep® system offers a solid acoustic hollow floor system that has “best in class” emission levels – making an ideal living environment for future users

    Find out how we can help you, call us today or send us a message:

    01480 367096

    By submitting an enquiry, you are granting Access Floors Distribution Ltd permission to store and process your data in accordance with our Privacy Policy. Your information will never be sold to or shared with any third party. The data you submit will only be used in relation to your enquiry and to keep you up to date with news from AFD Ltd. You can unsubscribe from emails at any time.

    Features and benefits

    Walks like a solid floor - No squeaking
    Quick & Easy to Install. No drying times compared to screed
    Provides precision level hollow floor over uneven subfloor with no mess
    Outstanding Fire Resistance Non Combustibl
    Apply Finishes Directly No De-Coupling Required
    High Acoustic Performance - Exceeds UK Building Regulations
    Highly Recycled & Low Embodied Carbon SystemEPD Certified

    Downloadable documents

    SilentStep® System

      Find out how we can help you, call us today or send us a message:

      01480 367096

      By submitting an enquiry, you are granting Access Floors Distribution Ltd permission to store and process your data in accordance with our Privacy Policy. Your information will never be sold to or shared with any third party. The data you submit will only be used in relation to your enquiry and to keep you up to date with news from AFD Ltd. You can unsubscribe from emails at any time.

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      IMPORTANT NOTICE. By submitting a request to download information, you are granting Access Floors Distribution Ltd permission to store and process your data according to our Privacy Policy. Your information will never be sold to or shared with any third party. The data you submit will only be used in relation to your enquiry and to keep you up to date with news from AFD Ltd. You can unsubscribe from emails at any time.

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