Prior to installation, we recommend the appropriate preparation of the subfloor where Pianomat underlay is to be installed.
Pianomat underlays can be laid on any subfloor (wood or concrete – screed) which is levelled and smooth. It must be dry, clean and without dust, scratches or cracks. In the case of a dusting subfloor (e.g. concrete), we suggest priming it with an appropriate dusting subfloor primer.
For this method, we recommend using a double-sided tape and the so-called ‘dispersion adhesive’ or any carpet glue. Unroll the underlay and cut it with scissors or a carpet knife. Then glue the underlay to the substrate using the adhesive. After Pianomat has been laid, apply the double-sided tape and lay the previously measured and adjusted carpet lining.
Additionally, we recommend laying the lining perpendicularly to the underlay. This installation method can be used in housing areas not exceeding 25m2, where the carpet lining is in one piece. It is the simplest method of installation, which does not require any know-how or tools.
This method is mostly recommended for rooms with an area exceeding 25m2 or if the lining is installed in areas where it will be used with particular intensity, e.g., under contract conditions. This method allows you to avoid the loss of the dimensional stability of the lining.
Glue the Pianomat underlay to the substrate using the so-called ‘dispersion adhesive’ or another PVC lining glue. Permanently glue the PVC lining to the underlay. This installation method allows you to remove the lining together with the underlay at any time without damage to the subfloor, and to easily install a new underlay and lining.
This method is very popular in the USA and Great Britain. Installation with the stretching method involves stretching the lining on a properly prepared underlay with the use of special tools. This is the most complex method requiring relevant skills of an installer, but at the same time it provides the best comfort of use and the easiest way of removing the lining.
Due to water absorption, Pianomat underlays should be used in areas not exposed to the accumulation of moisture or their surface should be protected against water.
The subfloor should be clean, even, levelled (level variation should not exceed 3 mm / 2 m) and with a moisture content not exceeding 3%. Pianomat underlays should be laid in a single layer, in a way to ensure complete contact between the edges (butt joints).
Remember to protect the underlays against mechanical damage during installation.