Rockwool Flexi Slab - (South and London Branch)


UK Flat Roofing





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Rockwool Flexi Slab - (South and London Branch)

£53.82 (inc VAT) £44.85 (ex VAT)


Rockwool Flexi Slab - (South and London Branch)


inc. VAT

Ex VAT £11.50


London - South Yorkshire - East Midlands - East

  Same day dispatch if ordered before 12pm


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.

Pack Sizes
50mm - 8.64sq.m
100mm - 4.32sq.m
140mm - 2.88sq.m

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 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.

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

This sheet is delivered from our branch that covers the South England & London - Please see map in images. If you are outside of this area please contact us or check our other Rockwool products for other areas we cover.


Branch: London - South Yorkshire - East Midlands - East

Brand: Rockwool

Thickness: 140mm

South & London Branch Delivery - 1 to 3 Working Day Delivery

Click the links for PDF's - Rockwool Flexi Brochure

SKU: RW-FS-140

 Same day dispatch if ordered before 12pm


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