The Warmup Overlay Gypsum Board is an 18mm thick overlay panel designed to provide a suitable floor build-up for Warmup electric underfloor heating systems. Also referred to by Warmup as the HiDECK Overlay 18 Gypsum Board, it provides a stable, durable layer above the heating system and is particularly suited to installations where vinyl or carpet floor coverings are required. Each board measures 600 x 1200mm and provides 0.72m² of coverage.
Key Features
18mm gypsum overlay board designed for underfloor heating applications
600 x 1200mm board size providing 0.72m² coverage per board
Designed for use with Warmup Foil Heater systems
Suitable where vinyl or carpet floor coverings are being installed
Provides a stable surface within the floor construction
Low-profile overlay construction helps minimise the increase in finished floor height
Suitable for new-build and refurbishment applications where an appropriate overlay solution is required
Designed to be installed as part of the Warmup system build-up
Floor Heating Applications
The Warmup Overlay Gypsum Board forms part of the floor construction above the Warmup Foil Heater system. Warmup specifies that when installing vinyl or carpet over its Foil Heater, either the Warmup Dual Overlay system or HiDECK Overlay 18 must be used.
The gypsum board provides a robust overlay layer between the heating system and compatible floor finishes, helping create the required installation build-up while maintaining a relatively slim overall profile.
Product Construction
The HiDECK Overlay 18 is manufactured as an 18mm gypsum board, providing a rigid overlay suitable for use within the specified Warmup floor heating construction. The board measures 600 x 1200mm, giving a coverage area of 0.72m² per board.
Technical Information
Brand: Warmup
Product: Overlay Gypsum Board / HiDECK Overlay 18
Product Type: Underfloor Heating Overlay Board
Material: Gypsum
Thickness: 18mm
Width: 600mm
Length: 1200mm
Coverage: 0.72m² per board
Application: Electric underfloor heating systems
Primary System: Warmup Foil Heater
Suitable Floor Coverings: Vinyl and carpet, subject to the complete Warmup system specification
Product Code: UK-WUK-IN-WDO-HIDECK18
Installation
The Warmup Overlay Gypsum Board should be installed in accordance with the relevant Warmup system installation instructions and the requirements of the chosen floor covering. It should be considered as part of the complete underfloor heating floor build-up rather than as a standalone heating product.
When used with the Warmup Foil Heater, the manufacturer's specified underlay and overlay requirements must be followed. Warmup specifically identifies the HiDECK Overlay 18 as an approved overlay option where vinyl or carpet is being installed.
Ideal Applications
The Warmup Overlay Gypsum Board is suitable for:
Residential underfloor heating installations
Refurbishment projects
New-build flooring systems
Rooms requiring vinyl floor finishes
Rooms requiring carpet floor finishes
Warmup Foil Heater installations requiring an overlay board
Important Information
The Warmup Overlay Gypsum Board is an overlay component rather than a heating element and must be used as part of a compatible Warmup floor heating system. Always follow the manufacturer's installation requirements for the specific heating system and floor covering.
Warmup documentation states that its Dual Overlay system is not suitable for use within wet rooms. The complete floor build-up and floor covering requirements should therefore be checked before installation.
Why Choose the Warmup Overlay Gypsum Board?
The Warmup Overlay Gypsum Board provides a purpose-designed 18mm gypsum overlay solution for Warmup underfloor heating installations, with a convenient 600 x 1200mm format and 0.72m² coverage per board. Its specification makes it particularly useful when installing compatible vinyl or carpet floor coverings over a Warmup Foil Heater system.
