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Afirmax - SPC LVT & Vinyl Underlay with foil tape - Smart 3in1 Underlay - 6.25m2

In Stock - Available for delivery from Monday 27th 2025

Price Per M²

Was £4.99/m2 £3.99/m2

Price Per Pack

RRP £31.19 NOW £24.94

Width: 1180mm

Thickness: 1mm

Length: 5300mm

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Product Description


Afirmax SPC & Vinyl Smart 3in1 Underlay with Foil Tape is a high-quality underlay designed specifically for use with SPC (Stone Plastic Composite) and vinyl flooring. This advanced underlay offers three key benefits in one: sound insulation, thermal efficiency, and moisture protection. The integrated foil tape ensures a seamless installation, making it easy to create a durable and long-lasting foundation for your flooring. It also significantly reduces noise transmission, creating a quieter environment, while providing extra comfort underfoot.

The thermal insulation properties of the Afirmax SPC & Vinyl Smart 3in1 Underlay help maintain consistent floor temperatures, improving the overall energy efficiency of the space. Its moisture-resistant layer acts as a barrier to prevent dampness from rising, protecting your flooring from potential damage. This underlay is particularly well-suited for areas with underfloor heating, as it allows heat to be distributed evenly. Ideal for both residential and commercial settings, it enhances the performance and longevity of SPC and vinyl floors.

Key Features
Thickness: 1mm
Length: 5.3m
Width: 1.18m
Pack Size: 6.25m2
Excellent Thermal Resistance
100% Recyclable
Designed For LVT & SPC Click Flooring

Special substrate for LVT panels with the click system
For rooms with very high traffic intensity – very high level of heavy load resistance
3 in 1 – substrate with integrated Aquastop vapour barrier and tape
Material – Modified XPSHD + PET
Perfect for these rooms
Living Room

Living Room

Living Room

Kitchen

Living Room

Bedroom

Living Room

Dining Room

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Data Sheets

Installation method: Floating floor
Reaction to fire: Efl
Low thermal resistance: 0,03 m2K/W
Floor Heating: Yes
Reflected walking sound (RWS): 63%
Impact sound reduction (IS): 18 dB
Compressive strength (CS): 400 kPA
CS class: CS3
Dynamic load endurance: >1 000 000 cycles
DL class: DL3
Punctual conformability: 0,8 mm
PC class: PC1
SD-value: 75 m
Resistance to Large Ball: 1300 mm
RLB class: RLB3
Waste code: 179604
Approvals: EPD
EAN: 5905167873786

FAQs About Underlay

What is underlay, and why is it important?

Underlay is a layer of material placed between the subfloor and the flooring. It serves several purposes, including sound reduction, insulation, and added comfort. Underlay helps protect the flooring, making it last longer, and provides a smoother, more stable surface, which is especially useful for laminate and vinyl flooring installations.

Does underlay help with soundproofing?

Yes, underlay can significantly reduce noise by absorbing sound, making it a popular choice in multi-story homes or apartments. Rubber and foam underlays are particularly effective for soundproofing, helping to minimise noise transmission between floors and creating a quieter, more peaceful living environment.

Can underlay help with insulation?

Absolutely. Underlay adds a layer of thermal insulation, helping to keep rooms warmer by reducing heat loss through the floor. This is especially beneficial in colder climates or for ground-level floors where underlay helps to keep the room more comfortable and may even reduce energy costs over time.

Is underlay necessary for all types of flooring?

While underlay is essential for laminate and vinyl flooring, it may not be needed for some types of flooring, like glued-down hardwood. However, even when not required, underlay can improve comfort, insulation, and soundproofing, so it’s often worth considering, even for floors that don't strictly need it.

What underlay is suitable for laminate flooring?

The ideal underlay for laminate flooring depends on your specific needs and the subfloor conditions. Foam underlay is a popular choice for laminate as it provides a good balance of comfort and soundproofing. If you're installing laminate on concrete or a ground-floor surface, it’s best to use an underlay with a built-in moisture barrier to protect against dampness. For rooms where sound reduction is a priority, such as upper floors or shared walls, a thicker underlay with soundproofing properties, like rubber, is a great option. Ultimately, the right underlay for laminate will support the floor’s durability, comfort, and functionality for your space.

What underlay is suitable for Luxury Vinyl Tiles (LVT)?

For Luxury Vinyl Tiles (LVT), it's important to use a firm and dense underlay designed specifically for vinyl flooring. LVT requires a smooth, stable foundation, so underlays that are too soft or thick could cause the tiles to flex or shift. Opt for an underlay with a moisture barrier if you're installing LVT over concrete or in a room prone to dampness, as this will help prevent moisture from affecting the vinyl. Additionally, if sound reduction is needed, look for an underlay with soundproofing properties, such as specialised foam underlays, to improve comfort and acoustics. The right underlay will provide stability, protect the flooring, and enhance the longevity of your LVT.

Is underlay suitable for underfloor heating?

Yes, but it’s important to choose an underlay specifically designed for use with underfloor heating. Underfloor heating-compatible underlays are usually thinner and have a high thermal conductivity to allow heat to pass through efficiently. Look for an underlay with a low tog rating (typically below 0.8 tog), as this indicates it won’t block the heat from reaching your flooring. Additionally, using an underlay with built-in moisture resistance can be beneficial when combined with underfloor heating to prevent condensation from affecting the floor. Always ensure that both your chosen underlay and flooring type are compatible with underfloor heating for optimal performance and warmth.