Flexi

Product A part of the Rockwool SoundPro range, Rockwool ‘Flexi’ is a unique insulation product with a patented flexible edge along one side. This unique Flexi edge is produced using patented technology to ensure a perfect fit is maintained between the product and its supporting framework. This ensures the insulation’s integrity. Flexi is designed for a host of applications where perfect fitting insulation is essential; in walls, partitions, floors and roofs. The ‘Flexi’ edge allows the product to be tightly fitted between timber and metal frames, without the need for cutting or waste.

Flexi-edged slab for framed constructions

Advantages

• patented ‘Flexi’ edge offers accurate fit to all widths
• will not slump if studs shrink
• multi-application, fits all typical metal and timber frame spacing
• no waste
• excellent thermal, acoustic and fire properties
• easy to handle and install without gaps

Rockwool Flexi™ is a unique semi-rigid slab with a flexible edge along one side.

The Flexi product is now available 1200 mm long x 600 mm wide and 1200 mm long x 400 mm wide, to suit standard stud and floor joist spacings.

Product Dimensions

Performance & properties

Fire Classification
Rockwool Flexi™ achieves a reaction to Fire classification of A1, as defined in EN13501-1.

Thermal Performance
Rockwool Flexi™ has a thermal conductivity of 0.038 W/mK when tested to EN13162.
At 140 mm thickness, Rockwool Flexi™ has a thermal conductivity of 0.035W/mK.

Work on site
Handling and storage
Rockwool Flexi™ Slabs are light and easy to cut to any shape with a sharp knife. The product is supplied palletised, protected by a weatherproof covering allowing it to be stored outside.

Maintenance
Once installed Rockwool Flexi™ needs no maintenance.

Acoustics

Rockwool Flexi™ works in two distinct ways to reduce noise, either by impeding the transmission of sound through an element of the structure, or by absorption of sound at the surface.

Noise absorption is expressed as a factor between 0 and 1.0. The more sound that a surface absorbs, the higher its absorption coefficient.

The structure of the fibres in Rockwool Flexi™ slabs make them ideal for use as a sound absorber, with characteristically high coefficients over a wide frequency range (see table opposite).

Absorption coefficients for Rockwool Flexi™

The absorption coefficients shown above are typical figures that can be achieved by Rockwool Flexi™.
They have been obtained from a comprehensive range of measurements.
Note: Differences in coefficients of less than 0.15 are not significant.