1 / 23Thermal insulation membrane
Isoflect Floor Pro — reflective thermal insulation foil and membrane for floors, vapour and radon barrier, 40 m²
Price includes VAT. Delivery across Romania, no minimum order.
In stock
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One pack covers 40.0 m².
or
Calculate what you need for your attic- Weight302.5 kg
- ManufacturerIsoflect Insulation
Reflective thermal insulation membrane · Flooring
Isoflect® Floor Pro — a single layer, four functions in the floor
Reflective membrane for underfloor heating systems: it reflects radiant heat back into the room, works as a vapour barrier on the concrete slab, helps reduce the infiltration of radon gas and dampens impact noise.
Why Isoflect® Floor Pro
Better efficiency of underfloor heating
The reflective aluminium layer redirects radiant heat towards the room, instead of letting it be lost into the concrete slab. The result: the floor reaches comfort temperature faster, heat distribution is uniform across the entire surface, and the system operates with reduced energy consumption.
Protection against radon gas
Installed continuously in the basement and ground-floor flooring, with sealed joints, the membrane helps reduce the infiltration of radon gas from the ground into the interior of the building. Radon is a naturally occurring radioactive gas, odourless and colourless, classified by the World Health Organization as the second leading cause of lung cancer after smoking.
What is radon? Official sources
Vapour barrier — protection against moisture from the foundation
Applied to the concrete slab, the membrane stops the migration of natural moisture from the foundation towards the upper layers of the floor. It prevents deterioration, the appearance of mould and damage to the materials installed above: polystyrene, grooved boards, wool, screed.
Reduction of vibration and impact noise
The air-bubble structure acts as a damping layer: it reduces vibrations transmitted through the building structure, footstep noise and the noise of objects falling on the floor. A real plus for residential projects geared towards premium comfort.
Position in the floor build-up
Technical specifications
| Property | Method | Value |
|---|---|---|
| Roll length | EN 822 | 40 m (±2.5%) |
| Roll width | EN 822 | 1 m (±2.5%) |
| Area / roll | — | 40 m² |
| Total thickness | EN 823 | 6 mm |
| Mass per unit area | EN 1849-2 | 240 g/m² (±20) |
| Emissivity | — | 0,05 |
| Reflectivity | — | 95–97 % |
| Thermal conductivity | EN 12667 | λ10 = 0.0347 W/(m·K) |
| Equivalent air layer thickness for diffusion (Sd) | EN 1931 | > 1500 m |
| Dimensional stability | EN 1604 | ±2 % |
| Water absorption (28 days) | EN 12087 | max. 7 % |
| Dynamic stiffness | EN 29052-1 | < 100 MN/m³ |
The values come from the Isoflect Floor Pro declaration of conformity. Emissivity and reflectivity are properties of the pure aluminium surface and are common to the entire Reflectiva range.
Installation instructions
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1
Positioning. The membrane is installed directly on the concrete slab or on Isoflect Vibra 9 for superior acoustic performance. The aluminium foil faces downwards.
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2
Surface preparation. The surface must be smooth, free of roughness or sharp elements and completely cleared of debris. This prevents perforation of the foil and preserves the continuity of the barrier.
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3
Turning up the walls. The membrane is turned up the walls by approximately 8 cm, also taking on the role of a perimeter strip. For correct sealing, apply double-sided adhesive tape to the perimeter area before installation.
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4
Jointing and sealing. The strips are butted together or slightly overlapped. The joints are sealed exclusively with Isoflect® Power Tape (10 cm wide) — a requirement for the vapour and radon barrier function.
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5
The final layer. Above it, flooring polystyrene, grooved boards, wood-wool or rock-wool mats, rigid boards or the levelling screed directly can be applied. The excess membrane is trimmed after the screed has been poured, at the final level.
Where it is installed
- Ground-floor and basement flooring
- Underfloor heating systems (water or electric)
- Areas where protection against moisture and radon is required
- Projects with high acoustic requirements
Free technical advice
The Isoflect Insulation team recommends the right system for your project: maximum thermal performance, protection against moisture, lasting interior comfort and optimised installation costs.
or by e-mail: contact@isoflect.ro
Garanție de 10 ani pe produs, aliniată la componenta cu garanția cea mai scurtă din alcătuire.
No registration of the project and no condition to use only our own accessories. The term runs from the date of purchase and is proven with the purchase documents.
Configurator
Not sure how much you need?
The area and the rafter depth are all it takes. The result includes whole rolls, the build-up and the price.




