Thermal-acoustic insulation FLEXI®
stone woolmineral woolrigid panel

thermal-acoustic insulation
thermal-acoustic insulation
thermal-acoustic insulation
thermal-acoustic insulation
thermal-acoustic insulation
thermal-acoustic insulation
thermal-acoustic insulation
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stone wool, mineral wool
rigid panel
wall, for roof, for flooring, for partition walls
Technical characteristics
high-performance, fire-resistant, water-repellent
Fire Class
Euroclass A1
fire protection
Thermal conductivity

0.035 W/(m.K), 0.038 W/(m.K)


1,200 cm (472 in)


400 cm, 600 cm (157 in)


Max.: 180 mm (7.09 in)

Min.: 50 mm (1.97 in)


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. ROCKWOOL FLEXI® 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 ROCKWOOL 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. ROCKWOOL 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. The patented ROCKWOOL 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.


*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.