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insulated underlay cutaway

Insulated Underlay

A thin polystyrene insulation barrier with effective acoustic properties to reduce contact noise.

Guide Price
$1.87 /ft²

Key benefits


Heat Loss Resistance

Increases the energy efficiency of your underfloor heating system by pushing the heat-upwards


Thin and Lightweight

Only 1/4″ in depth and easy to install



Comes in roll of 270sqft & 110sqft

insulated underlay

Insulated Underlay for Underfloor Heating

Warmup Insulated Underlay sits between the cold subfloor and the Foil Heater, reflecting heat upwards, therefore, making the underfloor heating system more efficient and effective. The foil backing acts as an effective moisture barrier and should installed face down. The Insulated Underlay has been specially developed for installation under the Foil Heater.

The insulated Underlay makes an ideal combination for installation of soft and resilient floor coverings such as carpet and laminate over the Warmup Foil Heater.

Technical Information

Product Documentation
Technical Specifications
Size Width – 4ft
Full Roll: 110 sqft
Thickness 1/4″
Composition Top Layer: Grooved polystyrene

This Product is used with

foil heater

Foil Heater

Electric underfloor heating system for laminate, carpet, vinyl, engineered wood and other floating floor finishes.

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