2mm Junckers Polyfoam Underlay Extruded LDPE with a closed cell structure
15sqm Roll / 30sqm Roll
Junckers PolyFoam is a resilient 2-in-1 underlay with an integrated moisture barrier for floating solid wood floors in residential and commercial interiors. Made from closed-cell extruded LDPE with a laminated polyethylene membrane, it provides step sound reduction while protecting the flooring from residual subfloor moisture. A 100mm membrane overlap with built-in tape ensures continuous protection and quick installation. Available in 15m² and 30m² rolls.
- Product Code: FPOLY
- Availability: In Stock Delivery: 1-3 days
- Brand: Junckers
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from £116.88/Roll
- Ex. VAT: from £97.40/Roll
Available Options
| Specification | |
| Roll Size | 15sqm or 30sqm |
| Type | Polyfoam Underlay |
| Colour | White |
| Thickness | 2mm |
| Application | Residential & Commercial Floating Floors |
| Material | Closed-Cell Extruded LDPE + PE Membrane |
| Suitable Flooring | Junckers Solid Hardwood Floating Floors |
| Installation | |
| Underfloor heating | Suitable – Additional PE Membrane Required Over Heated Screeds |
| General info | |
| Condition | New |
| Est. delivery | in 1-3 days |
| Categories: | Flooring Accessories | Underlays & Acoustic | | |
| Extras | |
| 1 order = 1 tree planted Shop now! madeofwood.uk/ecologi |
Frequently Asked Questions (FAQs)
What benefits does the polyfoam material provide for flooring projects?
Polyfoam offers cushioning and sound reduction, improving comfort and room acoustics.
How does the overlapping section help during installation?
The overlap ensures a tight seal between sheets, reducing movement and enhancing stability.
Is this underlay suitable for both residential and commercial spaces?
Yes, its robust construction suits a wide range of environments and traffic levels.
Can I purchase this product in different roll sizes?
You can choose between rolls covering either 15 or 30 square metres.
Does this underlay assist with damp protection for my floor?
Yes, it includes a built-in barrier to help shield flooring from moisture.




