Description
ThermoSphere Cement Overlay Boards are 5mm cement-based panels fitted above ThermoSphere Heating Foil, providing a moisture-resistant overlay suitable for wet or moisture-prone areas.
Key Benefits
- 5mm cement-based overlay board, 1.2m x 0.5m per board, supplied in pairs (0.72m²)
- Suitable for moisture-prone areas where a cement-based overlay is preferred
- Protects the heating foil and cables beneath the finished floor
- Provides a stable surface for suitable floor finishes
Applications
Used above ThermoSphere Heating Foil in bathrooms, utility rooms and other areas where a cement-based, moisture-resistant overlay board is preferred over standard HDF boards.
Performance & Features
Fitted above the cushioning overlay and heating foil, the cement board provides a firm, moisture-resistant surface suited to wetter environments.
Compatibility
Designed for use with the ThermoSphere Heating Foil (WCVF-140) range, in addition to the standard Cushioning Underlay and Overlay.
Supplied by Millcot as part of our full ThermoSphere underfloor heating range.
Downloads
- ThermoSphere Heating Foil Data Sheet (PDF)
- ThermoSphere Heating Foil Installation Instructions (PDF)
FAQs
When should I use this instead of the HDF board?
Choose the cement overlay board for wetter or moisture-prone areas where a cement-based board is preferred over standard HDF.
How much does one pack cover?
Each pack is a pair of boards covering 0.72m² — calculate packs needed for your total floor area.
Do I still need the cushioning underlay and overlay?
Yes, this board is an additional layer used alongside the standard cushioning underlay and overlay.