Product Description
Knauf Earthwool Building Slabs are a range of rigid and semi-rigid, resilient, non-combustible rock mineral wool slabs, available in densities from 33 to 140kg/m . The standard products are supplied un-faced, but they can also be manufactured with a factory applied foil or tissue facing, they are also available in a water repellent grade.
Earthwool Building Slabs are a range of rigid and semi-rigid, resilient, non-combustible rock mineral wool slabs, available in densities from 33 to 140kg/m3. The standard products are supplied un-faced, but they can also be manufactured with a factory applied foil or tissue facing, they are also available in a water repellent grade.
Product Benefits
Wide range of densities
Non-combustible
Excellent thermal and acoustic insulation properties
Durability
Universal Slabs are odourless, non-hygroscopic, rot proof, do not sustain vermin and will not encourage the growth of fungi, mould or bacteria.
Environmental
Universal Slabs are free from CFCs, HCFCs and any other material with ozone depletion potential in their manufacture and content and represent no known threat to the environment. Universal Slab’s manufacture has a low impact on the environment and is classified as Zero ODP and Zero GWP.
Fire Performance
Universal Slabs are classified as non-combustible to BS 476: Part 4: 1970 (1984) and Euroclass A1, Class 1 Surface Spread of Flame to BS 476: Part 7 1997 and Class ‘O’ to the Building Regulations.
Moisture Resistance
Universal Slabs are non-wicking when tested to BS 2972: 1989: Section 12. When exposed to 90% relative humidity at 20°C, Universal Slabs absorb less than 0.004% of moisture.
Vapour Resistance
Universal Slabs have a vapour resistance of 7.00 MN.s/g.
Operating Temperatures
Universal Slabs can be used up to continuous operating temperatures of 850°C. This is dependent on density.
Handling and Storage
Universal Slabs are easy to handle and install, being lightweight and easy to cut to size.
Universal Slabs are supplied in packs in Supakube pallets.
For longer term outside storage (stock or site) the pallets should be stored under a secure waterproof covering.
Universal Slabs should not be left permanently exposed to the elements.