Verified by manufacturer 6 days ago
Flexible Slab 40 mm
Indoor Air Comfort – Eurofins
A rock mineral wool insulation slab, designed for use in multiple applications providing thermal and acoustic insulation as well as the fire protection of loft conversion floors.
Rocksilk® Flexible Slab is typically used for the thermal and acoustic insulation of a wide variety of constructions such as timber and metal stud partitions, timber frame walls and suspended timber floors. 100 mm Rocksilk® Flexible Slab has been tested to provide up 60 minutes fire protection when a floor is upgraded to a fire resistant floor in line with Approved Document B, for example when a unused loft is converted into habitable accommodation during a loft conversion.
Knauf Insulation Rocksilk® Flexible Slab is a rock mineral wool insulation slab, designed for use in multiple applications providing thermal and acoustic insulation as well as the fire protection of loft conversion floors. It is non-combustible, achieving the best possible Euroclass A1 reaction to fire classification and is manufactured using Knauf Insulation's unique bio-based binder, ECOSE® Technology.
Rock mineral wool
K11/27 Acoustic separating floor system
K11/275 Acoustic separating floor system
B11/240 Thermal insulation
B13/241 Thermal insulation
K10/125 Metal stud partition system
K10/155 Wall lining system (metal studs)
K10/215 Suspended ceiling system
K10/220 Proprietary suspended ceiling system
K10/145 Wall lining system (metal studs)
P10/240 Insulation fitted between floor joists
P10/220 Sound insulation within timber framed separating wall
P10/250 Insulation supported between floor joists
K10/15 Lining on timber
K10/85 mineral wool insulation
K45/73 Installing insulation
P10/50 Insulation supported between joists
P10/45 Insulation laid between floor joists
K10/35 Wall lining system (metal framing)
To BS EN 13162.
Thermal conductivity (maximum)
Euroclass A1 to BS EN 13501-1.
Up to 35%.
Environmental Product Declaration (EPD)
EPD available. In accordance with BS EN 15804+A2
Green guide rating
Indoor air quality
Eurofins Gold achieved.
Products manufactured with ECOSE® Technology generate low levels of dust, VOCs and contain no added formaldehyde or phenol.
Method: calculations should be created using 2D or 3D modelling programs which comply with the methodologies detailed in BS EN ISO 10211.
Odourless, rot-proof, non-hygroscopic, do not sustain vermin and will not encourage the growth of fungi, mould or bacteria. The product will have a life equivalent to that of the wall structure in which it is incorporated.
Contains Red List materials
Country of material origin
Country of product manufacture
A1-A3 (production stage) as defined in BS EN 15804
2.62 kg CO₂ eq/kg
1 m² of Rock Mineral Wool Rocksilk® Flexible Slab with a thickness of 60 mm.
Mineral wool products from Knauf Insulation can be and in some cases are partly recycled at their end of-life, please contact supplier for more information.
NBS BIM object standard
This BIM object has been authored to meet the requirements of the NBS BIM object standard.
Find out more about the NBS BIM object standard.
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