28mm JCW Acoustic Deck 28 Concrete Floor Overlay Board

JCW Acoustic Deck 28 & 32 can be used on concrete subfloors or timber subfloors. They can be used within new build and refurbishment projects. Whether working to Robust Details or Pre Completion Testing, JCW can offer the ideal solution.

JCW Deck 28 comprises an 18mm P5 T&G Chipboard with a 10mm pre-bonded resilient layer. Whilst the JCW Acoustic Deck 32 comprises a 22mm P5 T&G Chipboard with a 10mm pre-bonded resilient layer.

A 5mm (min) perimeter edge strip is used at perimeters to isolate the floating floor from walls and skirting. When installed correctly the Deck 28 & 32 Systems will exceed the requirements set out in Part E of the Building Regulations.

Product Details

Thickness: 28mm, 32mm

Width: 600mm

Length: 2400mm

Board coverage: 1.44m2

Density: 441kg/m3

Deck 28 Sheet Size: 28mm x 600mm x 2400mm Weight: 17.8 kgs

Deck 32 Sheet Size: 32mm x 600mm x 2400mm Weight: 21.8 kgs

Impact Sound Insulation: 56dB

Reduction in Impact Sound Transmission: ∆ Lw 18 dB

Airbourne sound insulation: 52dB

18mm or 22mm P5 T&G Chipboard with a pre-bonded 10mm resilient foam layer

Both JCW Acoustic Decking products 28 & 32 have been tested in a UKAS accredited laboratory. It is essential all components are correctly installed and detailed to meet the requirements whether working to Pre-Completion Testing or Robust Details.

The JCW Acoustic Deck 28 & 32 offer excellent impact sound improvement with a minimal increase in finished floor height.

Basic guidance notes for installation of JCW Acoustic Decking

- All acoustic panels are laid as a floating floor (i.e. no mechanical fixings). The boards must be dry and acclimatised at least 24 hours prior to installation, this will minimise any expansion or contraction after installation.

- The substrate or joists should be flat, dry, and free from all debris. Acoustic boards are best laid towards the end of the project to protect from general trades, high floor loadings and moisture leading to expansion.

- The floor area/s to be overlaid should be carefully planned prior to commencing installation to minimise wastage. There are two overlay board types; 1) Non-Structural onto an existing sub floor. 2) Structural for Direct to Joist. The boards must be laid on to flat or levelled joists in the opposite direction of the joists. Direct to Joist boards can also be laid onto an existing sub-floor.

- Ensure that the wall surfaces are prepared (plaster skimmed or plaster boarded down to the level of the sub-deck). Any gaps will facilitate the unwanted transmission of sound via the wall edges.

-  Remove any tongues at the wall edges, then cut & scribe the first corner board into place and butt up to (do not compress the JCW Perimeter Edging Strip) the Edging Strip. 

At doorways: the acoustic floor should not be continuous with adjoining areas. At the door threshold leave a 5mm gap between the adjoining acoustic boards and fill with JCW Acoustic Sealant. This action will ensure that the acoustic integrity is maintained within the room that is being Sound Tested. 

- The finished floor should not be walked on for a period of up to 24 hours to allow the adhesive to cure undisturbed. NOTE; PVA adhesive will not cure in temperatures below 5˚ Celsius. Ensure that the board joint adhesive has fully cured prior to overlaying any final floor covering.

- Any penetrations through the acoustic floor and beneath the separating ceiling must be correctly detailed and dealt with on a site by site basis.

If you have questions about 28mm JCW Acoustic Deck 28 Concrete Floor Overlay Board please call us on 02038839057! You can also text us back in our live chat.

Please find all datasheets in PDF & BROCHURES section.

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