Glass Mineral Wool - Knauf Insulation FrameTherm® Slab 32

Knauf Insulation FrameTherm® Slab 32


Timber frame walls, Pitched roofs at rafter level


Glass Mineral Wool


FrameTherm® Slab 32 is a Glass Mineral Wool slab, designed for use in timber frame applications between studwork, that offers the best thermal performance in the range.

It is non-combustible insulation with the best possible Euroclass A1 reaction to fire classification, and is manufactured using Knauf Insulation's unique bio-based binder, ECOSE® Technology.


  • Designed to friction fit between timber studs, which prevents air movement and infiltration through or around the insulation, minimising heat loss.
  • Allows for quick and simple installation, maximising on-site efficiency compared to alternative insulants.



Thickness (mm) Length (mm) Width (mm) Thermal Conductivity (W/mK) R-Value (M²K/W) Euroclass Reaction to Fire Classification Facing Area Per Pack (M²) Packs per pallet Quantity per pack
140 1170 570 0.032 4.35 A1 Unfaced 2.670 16 4

Certification & Memberships

Eurofins Gold Eurofins Gold
Euroclass A1 Reaction to Fire Classification Euroclass A1 Reaction to Fire Classification
Green Guide Rating A+ Green Guide Rating A+
CE Marking CE Marking
EN 15804 EN 15804
Made in Britain Made in Britain
DECLARE 'Red List Free' DECLARE 'Red List Free'

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