Karma Overlay 28 Acoustic Floor Panels

Karma Overlay 28 boards offer a high performance impact and airborne noise reduction solution. In addition, they are ideal for refurbishments and can be laid directly on top of sub-floors for additional height. There is a minimum order quantity of 10 units for this product.

Impact Rating

Rated at 50 dB

Airborne Rating

Rated at 48 dB


28 mm


Covers 1.44m2


20.16 kg


£15.35 /m²

ex VAT


£18.42 /m²

inc VAT
Actual Area (sq m) 14.4
Total Price £221.00

Product Description

Karma 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 28 a complete sound proofing solution, tackling both impact and airborne noise.

The 18dB rating may not appear to be as good as some of the other Karma range products, but the overlay 28 will provide a substantial improvement in terms of impact and airborne noise reduction.

• Excellent impact and airborne noise reduction
• Minimal height increase
• Can be used with any floor finish
• Cost-effective solution
• Non-load bearing partitions and can be built off the finished floor surface
• Can be used on existing subfloors or concrete/screed floors
• Eliminates the requirement for a damp proof membrane
• Versatile – can be finished with all types of floor finish
• When tested in conjunction with an existing sub-floor the overlay 28 has been deemed fit to satisfy requirements of Approved Document E
• The T&G profile makes the installation process extremely easy
• The P5 chipboard has an exceptional fire rating



The soundproofing ratings of this product are 50dB impact and 48dB airborne.

These figures aren’t a measure of the reduction that the product gives, but is the figure that you would get following a soundproofing test after fitting, on the same or a similar full floor set-up to the one used during testing (not just the product in isolation).

Please see the product specification for more details on how these figures were achieved.

Need Some Assistance?

If you need any assistance in understanding our product range, please don’t hesitate to call our customer service team on 01484 411888.

Technical Specification

Dimensions2.4m x 0.6m x 28mm
Impact Noise Rating50dB

The information given here may vary and is partly based on information from our suppliers. It represents the prevailing level of expertise and is not binding in a legal sense. The compliance of legal requirements lies within the customers own responsibility.

You can find all of the information shown here on one of our product data sheets which are in a PDF format. You can download this below.

Technical Data Sheet
Product Data Sheet

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