Over-Foil Multistrato 11 – Multilayer Heat-Reflective Thermal Insulation Membrane
Key advantages
• Multilayer thermal insulation membrane with 11 layers
• Two outer layers of mesh-reinforced pure aluminium
• Effective thermal insulation in summer and winter
• Built-in vapour barrier
• Reduces thermal bridges and keeps thickness to a minimum
• Especially suitable for new construction and renovations
• Made from recyclable materials, with a high percentage of recycled content
• Made in Italy
Why this product
Over-Foil Multistrato 11 was developed for projects that require a high level of thermal insulation while saving wall thickness.
Its 11-layer structure, with pure aluminium on both sides, provides effective thermal insulation, a vapour barrier and a significant improvement in building envelope performance, especially in combination with plasterboard wall systems and lightweight construction. The product is also manufactured with an environmentally conscious approach, using recycled materials and reducing transport volume.
Technical description
A multilayer heat-reflective thermal insulation membrane made up of 11 layers: two outer layers of protected, mesh-reinforced pure aluminium, and nine inner layers of heat-reflective films, wadding and foamed PE sheets.
The membrane has an edge-sealing system using plastic threads, which keeps the thickness uniform even after cutting and helps reduce thermal bridges.
Applications
• Plasterboard walls
• External and internal walls
• Roofs
• Ceilings
• Renovations
• New construction
• Residential buildings
• Commercial and industrial buildings
Technical specifications
Structure:
- 11 layers
- Mesh-reinforced pure aluminium
- Wadding layers
- Heat-reflective layers
- Foamed PE
Thickness:
- 34 mm
Roll dimensions:
- Width: 1.50 m
- Length: 10 m
- Area: 15 m²
Weight:
- 660 g/m²
Roll weight:
- Approx. 10 kg
Emissivity:
- 0.05
Water vapour resistance factor (μ):
- 90,000
Thermal performance
Thermal resistance of the material alone:
- R = 1.06 m²K/W
In a wall:
- One layer + one air gap: R = 1.72
- One layer + two air gaps: R = 2.39
- Two layers + one air gap: R = 2.78
- Two layers + two air gaps: R = 3.45
In a roof:
- One layer + one air gap: R = 1.51
- One layer + two air gaps: R = 1.97
- Two layers + one air gap: R = 2.58
- Two layers + two air gaps: R = 3.03
In a ceiling above a cold space:
- One layer + one air gap: R = 1.98
- One layer + two air gaps: R = 2.90
- Two layers + one air gap: R = 3.04
- Two layers + two air gaps: R = 3.96
Acoustic performance
• Contributes to improved sound insulation as part of a wall or ceiling system.
• Its main purpose is thermal insulation and the reflection of radiant heat.
• For high noise insulation, combining it with dedicated acoustic insulation materials is recommended.
Fire performance
• According to the manufacturer, the reaction-to-fire classification is under certification.
Standards
• UNI EN 22097 – test standard for heat-reflective insulation.
• UNI EN 12667 – measurement of thermal resistance.
• Made in Italy.
Installation
• Install with an air gap to achieve maximum thermal performance.
• Particularly suitable for integration into plasterboard wall systems.
• Make sure joints are sealed with a suitable aluminium tape.
• Maintain the continuity of the vapour barrier layer.
• Easy to cut while keeping a uniform thickness, thanks to the membrane’s reinforced structure.
Sustainability
• Made from recyclable materials.
• High percentage of recycled material.
• Produced locally in northern Italy.
• Transport volume 6 times smaller than rigid insulation boards with similar performance.
