FLEXI
Slab Products

FLEXI®

The Perfect Fit.

Say goodbye to cold spots and poor acoustics. Suitable for use all over the home, ROCKWOOL FLEXI® is an ideal insulation solution for any building project. The flexible edge helps to overcome the problems with fresh timber shrinkage as well as the displacement of insulation.

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ROCKWOOL FLEXI® has been designed as a multi-use, dual purpose acoustic and thermal mineral wool insulation with a unique flexible edge along one side. The FLEXI slab is manufactured with the patented flexible edge which ensures a perfect fit is maintained between the insulation and the supporting framework. The insulation can be fitted between fresh timber and will expand into the wider space as the timber dries out and shrinks back. Other types of insulation can often become displaced resulting in cold spots or poor acoustics. FLEXI provides excellent thermal and acoustic performance as well as being A1 classified non-combustible for fire resistance.

ROCKWOOL FLEXI® is easy to install and has optimum effectiveness. It is suitable for use all over the home, in pitched roof rafters, framed external walls, internal partitions, intermediate floors, separating walls and floors, and timber suspended ground floors.

 

Accreditations: 

Euroclass A1 non-combustible

CE Marked

  • The patented FLEXI Edge® offers an accurate fit for all widths, overcoming problems with cold spots and acoustics that are associated with other types of insulation.
  • The insulation fits all typical metal and timber framework, a reliable option in any design specification.
  • High performing acoustic, thermal and fire protection properties, for a comfortable and safe home.
  • ROCKWOOL FLEXI® has been rated Euroclass A1 non-combustible, the highest level of fire resistance. 
  • Fast and easy to install, the versatility of FLEXI for suitability all over the home makes it a simple and safe option for design specifications. 
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Product Properties

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Compliance BS EN 13162, ISO 14001
Reaction to fire Fire Properties Euroclass A1
Thermal conductivity 0.035 - 0.038 W/mK

Thermal - 50mm - 120mm, 0.038 W/mK

Acoustic - 140mm - 180mm, 0.035 W/mK

Acoustical Performance Achieves Part E (resistance to sound) when installed in accordance to ROCKWOOL guidelines
Water repellent Water Repellent
Water vapour resistance Negligable
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Thermal - 50mm - 120mm, 0.038 W/mK

Acoustic - 140mm - 180mm, 0.035 W/mK

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Product range and ancillaries

Item number External item number Country Thickness (mm) Width (mm) Length (mm) Pieces Per Pack Packs Per Pallet m² Per Pack m² Per Pallet
123317 123317 UK 50 400 1200 12 18 5.76 103.68
123318 123318 UK 50 600 1200 12 12 8.64 103.68
123320 123320 UK 60 600 1200 12 12 8.64 103.68
123322 123322 UK 70 600 1200 8 16 5.76 92.16
123324 123324 UK 90 600 1200 6 20 4.32 86.4
123325 123325 UK 100 400 1200 6 30 2.88 86.4
123326 123326 UK 100 600 1200 6 20 4.32 86.4
123328 123328 UK 120 600 1200 6 16 4.32 69.12
123329 123329 UK 140 400 1200 4 24 1.92 46.08
123330 123330 UK 140 600 1200 4 16 2.88 46.08
163833 163833 UK 180 600 1200 3 12 2.16 25.92

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