70mm Knauf Rocksilk Flexible Insulation Slab

Discover the 70mm Rocksilk Flexible Slab, a premium rock mineral wool slab engineered for comprehensive thermal and acoustic performance with superior fire protection in loft conversion floor applications. Extensive testing confirms this 70mm Knauf flexible insulation slab delivers 60 minutes of fire resistance when installed in loft conversion floor settings.

The product achieves non-combustible status and holds the highest Euroclass A1 fire rating, delivering exceptional fire safety performance. Manufacturing incorporates Knauf Insulation's advanced ECOSE® Technology binder, a sustainable solution derived from renewable materials.

Product Specification

Thickness: 70mm

Length: 1200mm

Width: 600mm

Coverage: 5.76m2

Brand: Knauf Flexi

R-Value: 1.85m2K/W

Thermal Conductivity: 0.035 and 0.037 W/mK

Model: 70mm Flexible

Dimensions: 1,200mm x 600mm x 70mm

Density: 33kg/m3

Material: Rock Mineral Wool

Profile: Flexible on all four sides

Vapour Resistivity: 5.00MNs/g.m.

Building Regulations: Class '0'

Fire performance: Euroclass A1 (non-combustible)

Finish: Unfaced

Applications: Partitions, walls, floors, ceilings, loft insulation

ECOSE Technology: Yes

Features: Non-combustible ǀ Versatile

Application

This 70mm Knauf Flexi insulation slab performs effectively across numerous construction scenarios, including ground floors, internal floors, separating floors, pitched roofs at rafter level, internal walls and partitions, light steel frame walls, and timber frame walls. Its flexibility makes it an excellent choice for diverse construction projects, delivering reliable thermal and acoustic performance across all applications.

Benefits

A highly adaptable solution for insulating multiple applications on-site, this 70mm Knauf multi-purpose product offers flexibility across all four sides, enabling straightforward and rapid installation. For loft insulation improvements, existing ceiling structures can remain in place whilst maintaining full building regulation compliance.

Regarding fire resistance, rigorous EN 1365 testing has been performed at both 400mm and 600mm depths. Results confirm this product achieves one hour of fire resistance in separating floor applications. These outstanding fire safety features provide assurance that your construction project satisfies stringent safety requirements.

Durability

The 70mm Knauf Rocksilk Flexible Slab remains odourless, rot-resistant, non-hygroscopic, resistant to vermin infestation, and prevents fungal, mould, and bacterial growth. Its lifespan matches that of the building structure in which it is installed.

Info

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