Description
Termofol TF-PI-3MM underlay for heating film
TF-PI-3MM is a 3 mm underlay for a compatible floor construction with heating film. The Termofol catalogue describes it specifically for heating film beneath laminate panels. Its printed grid helps with the layout. It is therefore not a universal insulation board for every heating mat, heating cable or bonded tile floor.
Thickness, size and sales unit
The catalogue lists a width of 100 cm and a thickness of 3 mm. A factory roll is 50 metres long and weighs 18 kg according to the catalogue; this does not mean you automatically order a full roll. Existing item data lists 100 × 100 cm per unit, or 1 m². Confirm the required quantity and sales unit before ordering. The complete floor construction is thicker than this underlay alone.
Assess the complete floor construction
A suitable underlay can limit heat transfer into the structure, but a 3 mm layer does not replace an assessment of the existing floor insulation. Warm-up time and consumption also depend on the complete construction, heat demand and controls. We do not promise a fixed saving or guaranteed sound insulation. Check the load, flatness and thermal requirements of both the laminate and heating system.
Follow the approved layer sequence and instructions for joints, connections, vapour control and flooring. The underlay does not automatically make a bathroom or damp substrate suitable. Confirm other finishes or combinations with mats and cables beforehand. We advise private and business end users, installers and wholesalers using a floor plan, substrate, insulation and selected flooring. Ask us about components, scope of supply and terms.