100mm Rockwool Flexi Insulation Slab

100mm Rockwool Flexi is a multi-purpose stone wool insulation combining thermal and acoustic performance in a single product. This insulation slab features a patented flexible edge on one side for superior installation.

The 100mm Rockwool Flexi slab incorporates an engineered flexible edge that creates a friction fit between the insulation and structural framework. Installation is straightforward—simply position the product between fresh timber. As the timber dries and shrinks, the insulation expands to fill any gaps. Classified as Euroclass A1 non-combustible, 100mm Flexi Slab delivers enhanced thermal and acoustic insulation properties.

Suitable for numerous applications including pitched roof rafters, timber-framed external walls, and internal partitions.

Product Specification

Thickness: 100mm

Width: 400mm

Length: 1200mm

Dimensions: 1200x400mm - 2.88m2

Density: 33kg/m3

Weight of 1m2: 2.63kg

Weight: 9.5kg

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

R-Value: 2.63m2K/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 ensures secure friction fit. • Maintains position as timber studs dry and shrink. • 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

100mm Rockwool Flexi Non-combustible insulation slab represents an innovative solution featuring a proprietary flexible edge design. Engineered with patented technology, it delivers rapid, effortless installation through a secure friction fit mechanism. The flexible edge maintains optimal contact between the product and its supporting structure, enabling straightforward installation and reliable performance.

Rockwool Flexi 100mm offers exceptional versatility across applications. From timber-framed external walls and roof rafters to floor systems and partition walls, this insulation product performs consistently. Its flexibility enables seamless integration throughout building structures, enhancing both thermal and acoustic performance characteristics.

With 100mm Flexi Insulation Slab, you benefit from innovative design and premium quality to address your insulation requirements effectively.

Info

Browse our Rockwool range and refine by thickness or coverage using the left-hand filters. For project-specific advice or bulk pricing enquiries, contact us via phone on +4402038839057, email sales@insulationbee or Live Chat - Lowest UK Insulation Prices.