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ThermoFloor 045

Wood-fibre impact sound insulation board (resilient layer) suitable for loads up to 5 kN/m²

laying Karphosit clay blocks

ThermoFloor boards are rigid insulation boards. Their most common use is as an acoustic isolation layer in floor constructions (i.e below screed). ThermoFloor boards can be composted after their useful life.

Composition & Manufacture

  • Manufactured from renewable resources
  • Manufactured from by-products
  • No chemical additives
  • No toxins or toxic emissions during manufacture
  • CO2 zero-rated
  • Timber fuelled embodied energy
  • Actively recycled

Installation & Disposal

  • No known health risks for workforce or installers
  • Easily and quickly installed
  • No VOC emissions
  • Durable
  • Low maintenance
  • Reusable / Recyclable
  • Compostable


  • Excellent dynamic rigidity (30 MN/m³)
  • High impact sound reduction
  • High airborne sound reduction
  • Excellent thermal insulation
  • Vapour permeable
  • Hygroscopic (absorbs & releases moisture)
  • Helps regulate indoor climate
  • Vermin and fungus resistant
  • Electrically neutral
  • Non-radioactive
  • Free from toxins and allergens
  • Dimensionally stable (low thermal movement)

ThermoFloor boards can be installed below all types of commonly specified floating floors - screeds, dry flooring elements, unfired clay blocks, flooring grade chipboard and flooring grade OSB. ThermoFloor is often installed in two layers in order to accommodate conduit runs.

Part of this web page will not print - please use the product pdf linked on this page


Maximum installation thickness
Screed (cement, anhydrite, asphalt etc) 60 mm
Chipboard > 25 mm 30 mm
OSB flooring > 22 mm 30 mm
Dry Flooring Elements > 25 mm 30 mm
ThermoSafe-nf 40mm 20 mm

For greater thicknesses use ThermoSafe 040.


Store in dry conditions.

Cut boards using a fine-toothed hand saw, Jig saw, or circular saw with integral dust extractor.


• Protect boards from moisture in the substrate / screed.
• Avoid cross joints when laying.
• Stagger joints when installing more than one layer.
• Install edge strip to the full height of the proposed floor make up.


Raw materials spruce / pine chippings
Hydrating agent natural tree resin
Fire protecting agent none


Board thickness 21(20) / 31(30) mm
Board size 1200 x 600 mm
Boards per pallet 180 / 120
Coverage per pallet 129.6 / 86.4 m²
Weight per pallet 450 kg

Technical data

Density, ρ ≤ 160 kg/m³
Thermal conductivity, λR ≤ 0.045 W/m.K
Thermal resistance, R 0.44 / 0.67 m².K/W
Specific heat capacity, c 2100 J/kg.K
Vapour diffusion factor µ = 5
SD -value 0.10 / 0.11 m
Dynamic rigidity, s ≥ 30 MN/m³
Compressive deformation ≤ 3 m²
Fire rating Class B2


• DIN 68755-2-WF-P-TK-S30-045-B2
• EN ISO 9001:2000 Certified ZQM01134-00
• EN ISO 14001:1996 Certified 290102GUTEX00

Date publishedTitleFile sizeDocument type
ThermoFloor 045
Wood-fibre impact sound insulation board (resilient layer) suitable for loads up to 5 kN/m2
246 KB Technical data sheet

To order this product, or to request pricing / quotations, please do one of the following:

- call us at 020-7232-1181
- fax us at 020-7023-3789
- email us at
- use our online quotation request form.

Our hours of business are Monday to Friday, 10.00 to 18.00.

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