28mm Karma Acoustic Overlay 28 Chipboard

Guide Price
28mm Karma Acoustic Overlay 28 Chipboard
Guide Price: £32.70 (£39.24 inc VAT)
Price per m2: £22.71/m2 (£27.25 inc VAT)
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- Product Code: A1-2473
- Delivery Time: 1 - 2 days
- Brand: CMS Danskin Acoustics (Tech. support: : 01925577711)
- Model and Size: 2400x600mm - 1.44m2 28mm
- Weight: 20.16kg
Our ratings on 22-08-2025:

4.8 out of 5
28mm Karma Acoustic Overlay 28 Chipboard
Width: 600mm
Length: 2400mm
Sheet Coverage: 1.44m2
Density: 500kg/m3
Weight/m2: 14kg
Weight: 20.16kg
28mm Karma Acoustic Overlay 28 is a high performance acoustic floor panel with an exceptionally high sound reduction performance to height ratio. The combination of P5 chipboard and cross linked polyolefin foam make the overlay board a complete sound proofing solution, tackling both impact and airborne noise. It is used on an existing floor, new ply or chipboard floor or directly to concrete/screed floors making it an ideal product for refurbishment and new build projects. Lightweight non load bearing partitions can be supported on top of Karma Overlay 28 boards.
CHARACTERISTICS
- Cost-effective solution,
- Quick & Easy to install, offering savings labour,
- Excellent impact and airborne sound performance,
- Minimal height increase,
- Can be used with any floor finish,
- Can be used on existing subfloors or concrete/screed floors,
- Non load bearing partitions can be built off the finished floor surface,
- Eliminates the requirement for a damp proof membrane,
- Fire rating of top layer Class 0 surface spread of flame to BS 476,
- GWP <5 Global Warming Potential of resilient layer,
- Product made recycled or recyclable materials.

APPLICATION
- New build apartments, hotels, student accommodation and houses with timber joist floors,
- Refurbishment projects where height restrictions exist but reliable performance is still required
INSTALLATION
- The boards should be located into the environment in which they are to be fixed at least 24 hours prior to fixing.
- The subfloor evenness tolerances must not exceed +/- 2mm per 2 metre run.
- The base floor must also be clean and completely dried out.
- The floor should be clear of pipes and other obstacles.
- Place Karma 5mm x 100mm wide flanking strip between the panels and perimeter walls and existing door frames during installation to reduce flanking sound transmission.
- Lay boards with the grooved edges or cut edges facing the perimeter walls.
- Use the off cut from the final panel in the first row to commence the next row.
- Do not start a row with an off cut less that 250mm long.
- Lay panels in a brick bonded fashion.
- While laying boards apply a liberal amount of Karma PU adhesive to the grooves of the T&G joint and tightly butt the boards together.
- Wipe off excess adhesive with a damp cloth.
- Avoid walking on the boards until the adhesive has dried.
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