• STEPROCK ND - hard water repellent insulating boards made of stone wool based gabbro-basalt rock. Boards STEPROCK ND acoustic device designed for floating floors under the screed or OSB, as well as for thermal insulation of floors on the ground. Enjoy the dynamic characteristics that meet the requirements for protection against noise, and belong to the class of highly effective sound insulation gasket materials.
  • Such characteristics boards STEPROCK ND, the dynamic elastic modulus, relative compression, reducing the index reduced impact noise level give reason to use this material in the construction of the floor structure of industrial, residential and public buildings.
Manufacture Product Details
Manufacturer ROCKWOOL
Contact Details Bryullova str, 7, office C-22, 03049, Kyiv, Ukraine, tel: +38-044-586-49-79, fax: +38-044-586-49-74,
Material Stone wool
Lambda in W/(m·K) 0.037
Thickness in mm 50
R-Value m²K/W 1.35

Annual savings
Annual savings: UAH 1,800 / 1,500 kWh*

Annual energy baseline for heating 39,722kWh/a

Annual energy after replacement STEPROCK ND (50 mm)

Your annual savings


1. Inclusion of the technologies, equipment and materials in the Technology Selector is based solely on qualification under IQ energy’s ‘Minimum Energy Performance Standards’** and does not constitute an endorsement of the producers or suppliers of these products by the EBRD. Although every effort has been made to present correct and up to date data, EBRD does not accept responsibility for the accuracy of the data presented.

**Included technologies ‎have been assessed to result in at least a 20% higher energy performance than the market average

2. The savings are calculated for the refurbishment of an average dwelling or the replacement of an average equipment in Ukraine. The actual savings of individual refurbishment projects/equipment can differ from the indicated savings due to specific climatic conditions, size of the dwelling/equipment, consumer behaviour, etc. The displayed energy efficiency measures only have an impact on individual household's bills (savings) if there is consumption based billing available.

3. Even though we have taken reasonable care to apply up-to-date energy prices when calculating savings in UAH, we do not take responsibility for the accuracy of any savings estimates stated on this Site.

4. All prices displayed in our Technology Selector are provided by the suppliers as indicative retail prices and should be used for reference purposes only. The actual prices of the vendors/retailors can be different from those on our web site due to various reasons beyond the influence of IQ energy programme. IQ energy programme does not bear any liability for the price information of any specific product. Please, check with suppliers actual prices for products and technologies you are interested in.