Polyplumb Overlay Heating Fixing Methods
Overlay is a unique low profile floor heating system ideal for both renovation and new build projects
Installed over the existing floor and only 18mm in depth, Overlay allows floor heating to be installed where traditional under floor systems would either require expensive excavation or would require the floor to be raised to an unacceptable level.
The Overlay system is available in 2 panel types to allow for installation to all build types and floor coverings.
Overlay panel is a fibrous panel used for heavyweight floor coverings such as ceramics, or where the floor covering needs to be secured directly to the panel, e.g. solid wood.
Overlay systems use a 12mm pipe at 150mm pipe centres and provide excellent response times and heat output compared with traditional built in under floor heating solutions and are therefore ideal for both traditional heating systems and low temperature renewable systems.
|Cover details||Fixing method|
|Ceramic tiles||Direct||Flexible grout and adhesive|
|Optional cover layer||Flexible grout and adhesive||Fix ply using OverlayTM glue plus screw where necessary|
|Optional cover layer||10mm Ply/ 6mm MDF||Use tile adhesive conforming with EN12004-Type C|
|Solid wood||Direct||Secret fixing to OverlayTM floor panel|
|Engineered wood||Direct||Secret fixing to Overlay floor panel|
|Laminate||Direct||Secret fixing to Overlay floor panel|
|Carpet - with cover layer||10mm Ply / 6mm MDF||Fix ply using Overlay glue plus screw where necessary|
|or||6mm board||Use tile adhesive conforming with EN12004-Type C|
|Vinyl** - with cover layer||10mm Ply / 10mm MDF||Fix ply using Overlay glue plus screw where necessary|
* Cover board thickness indicated are minimum. The maximum thickness of any cover board is 18mm. Sheet products other than those shown may also be suitable.
** If using Karndean or Amtico type flooring, refer to manufacturers for suitable floor finish.