70mm Rockwool Flexi Insulation Slab 1200x600mm

70mm Rockwool Flexi is a dual-purpose stone wool insulation product delivering both thermal and acoustic performance. Distinguished by its patented flexible edge design on one side, this Rockwool Flexi slab ensures a secure fit between the material and supporting framework. Installation is straightforward—simply position between fresh timber, and as the wood naturally dries and shrinks, the insulation expands to fill any gaps. Classified as Euroclass A1 non-combustible, this 70mm Flexi Slab delivers enhanced thermal and acoustic insulation capabilities.

Ideal for multiple building applications including pitched roof rafters, timber-framed external walls, and interior spaces.

Product Specification

Thickness: 70mm

Width: 600mm

Length: 1200mm

Dimensions: 1200x600mm - 5.76m2

Density: 33kg/m3

Weight of 1m2: 1.65kg

Weight: 13.31kg

Thermal Conductivity: 50-120mm 0.038 W/mK / 140mm> 0.035 W/mK

R-Value: 1.62m2K/W

Product Standards: BS EN 13162

Reaction to fire (Euroclass): Euroclass A1

Acoustic: Achieves Part E (resistance to sound) when installed in accordance to ROCKWOOL guidelines

Water vapour resistance: 5.2 MNs/gm

Water repellent: Yes

FEATURES AND BENEFITS:

• Superior thermal performance characteristics. • Effective sound dampening properties. • Euroclass A1 non-combustible classification. • FLEXI Edge technology provides secure friction fit. • Maintains position as timber studs dry and contract. • Mineral wool insulation batts (slabs) CE marked to BS EN 13162:2012+A1:2015

Applications

1. Intermediate Floor Insulation
2. Separating Floor
3. Rafter Line
4. Separating Wall
5. Partition Wall
6. Pitched Roof
7. Timber Frame
8. Floor Solutions

About

This 70mm Rockwool Flexi non-combustible insulation slab represents an innovative solution featuring a proprietary flexible edge design. Engineered with patented technology, it delivers rapid installation with a reliable friction fit for consistent results. The flexible edge maintains alignment between the product and its supporting structure, enabling straightforward installation and optimal performance.

Rockwool Flexi 70mm offers exceptional versatility across building applications. From timber-framed external walls and roof rafters to floors and partition systems, this insulation product performs reliably in all contexts. Its adaptability enables seamless integration throughout building structures, enhancing both thermal and acoustic performance.

With 70mm Flexi Insulation Slab, you benefit from distinctive engineering and proven quality to address your insulation requirements with confidence and effectiveness.

Info

Explore our complete Rockwool range and refine selections by thickness or coverage area using the left-side filters. For guidance on product suitability for your specific project or to request a bulk discount quotation, contact us via phone on +4402038839057, email sales@insulationbee, or Live Chat - Lowest UK Insulation Prices.