A dual overlay system is designed to create a smooth, stable, and level subfloor above electric foil underfloor heating systems. Installed as a free-floating layer, it protects the heating elements while providing a suitable surface for a wide range of floor finishes. This type of overlay is particularly recommended for soft and resilient flooring materials, […]
Dual Overlay
Home / Electric Systems
Dual Overlay is a free-floating subfloor for use with the Foil Heater under carpet, vinyl and linoleum floor finishes or a complete electric underfloor heating solution perfect for softer floor finishes.
The top boards stick directly to the base boards. However, it needs to be ensured that each layer is laid out with staggered joints and arranged so that the top boards overlap the joints in the base board. This ensures a stable floating floor on top of the underfloor heating foil heaters.
The Warmup Underlay / Dual Overlay systems are designed to work specifically with Warmup Foil Heaters only.
Each pack contains: 4 base boards & 4 top boards and covers 2.88m² of flooring.
The Warmup® Dual Overlay is a floating subfloor – it is not fixed to the floor below. The system includes a 3mm base board and a 4mm top board with contact adhesive, which bonds them together to make one solid subfloor, It provides a smooth and seamless subfloor making it suitable for soft and resilient […]
The Dual Overlay is an MDF board with an interactive adhesive that fixes the top board to the base board. See the full technical specification of the dual overlay boards.
The boards can easily be cut using a utility knife.
The dual overlay system is not suitable for use in wet areas due to the composition of the boards. If installing vinyl into a wet area an alternative underfloor heating system will need to be installed. The Loose Wire or StickyMat system can be used in this situation but must be covered by a 10mm self-levelling […]
The dual overlay system is designed for use with Carpet and Vinyl flooring. The overlay boards must not be used with tiles or wood flooring, please see the technical specification sheet for more information.