Description
Choose Cloud 9 Cumulus for a deeper, softer feel beneath your carpet. Its 11mm construction is designed for rooms where underfoot comfort is the priority. Each roll provides nominal coverage of 15m².
Where to use it
For luxury domestic rooms and installations requiring a high level of comfort. The manufacturer also lists suitable contract work and compatible wood block floors. Suitable for stretch-fit carpet installation.
Ultrafresh treatment helps inhibit fungi and bacteria in the underlay. For a heated floor, check suitability and the combined tog with your fitter before ordering.
Technical specifications
- Core
- Cloud 9 APT crumb
- Thickness
- 11 mm
- Nominal roll coverage
- 15 m²
- Nominal roll dimensions
- 11 m × 1.37 m
- Top surface
- Printed stitch bonded crepe paper
- Underside
- White non-woven fabric
- Nominal roll weight
- 18.7 kg
- Weight per unit area
- 1241 g/m²
- Core density
- 100 kg/m³
- Finished product density
- 113 kg/m³
- Thermal resistance
- 3.1 tog (BS 4745)
- Impact sound improvement
- 43 dB (BS EN ISO 10140-3 / BS EN ISO 717-2)
- End-use classification
- L/U – luxury use
- Manufacture
- United Kingdom; BS EN 14499:2015
Performance test results
- Compression work after 1,000 impacts
- >170 J/m² (BS 4098)
- Compression work retained
- >80% (BS 4098)
- Thickness loss after static loading
- <5% (BS 4939 / ISO 3416)
- Thickness loss after dynamic loading
- <5% (BS ISO 2094 R05)
- Resistance to cracking
- Pass (BS EN 14499)
- Hot metal nut test
- Pass – medium radius of effect (BS 4790)
Indoor air quality
- Air quality testing
- ISO 16000
- French VOC rating
- A+
- French CMR components
- Pass
- Italian CAM
- Pass
- Formaldehyde emission class
- E1
- Eurofins Indoor Air Comfort / Gold
- Pass / Pass
- AgBB/ABG
- Pass
- BREEAM International / BREEAM NOR
- Compliant / Compliant
- LEED v4 outside the US
- Compliant
Coverage, fitting and guarantee
Measure your area and allow for cutting and fitting waste. Divide the required area by 15 and round up to a whole roll. Roll dimensions are nominal and subject to manufacturing tolerances.
The manufacturer’s guarantee covers the lifetime of the initial carpet installation when used in recommended areas. Test results describe laboratory performance; the fitted floor’s performance depends on the complete installation.
Download the manufacturer’s technical datasheet (PDF)
Issue 9, 28 May 2020
Compare Cirrus 9mm, Cumulus 11mm and Radiance 6mm, or browse all underlays.
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