‘Rockwool Cavity is the best cost effective method of insulation for new masonry cavity walls. It fits tightly to internal block work reducing heat loss without permitting water transmission from outer to the inner leaf.
It also reduces the risk of condensation improving the effectiveness of intermittent heating systems. Provided the batts are correctly installed and sound building techniques are applied to the cavity wall construction, any water penetrating the outer leaf will drain down the surface of the batts.
The direction of the grain of the mineral wool ensures that the insulation will stop water crossing the cavity to the inner leaf.
Thermal conductivity (K value) = 0.037W/mK.’
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| Material/s: |
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igneous rock (volcanic) plus steel industry byproducts |
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| Environmental statement: |
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yes |
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| EPD (to ISO 14025): |
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none |
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| BRE Ecopoints: |
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1.2 (Cavity wall: brick, Cavity insulation, block, plaster) |
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| Environmental labelling: |
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none |
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| ISO 14001: |
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ISO 14001 |
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| 3rd party accreditation: |
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BBA cert 94/3079 CE marked BSi Kite and Key marked |
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| 3rd party product endorsement: |
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Carbon Trust award |
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| Quality certification: |
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ISO 9001 |
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| Reusability / Recyclability: |
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reusable |
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Recycled content
(to ISO 14021 / WRAP): |
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20 - 30% |
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| Life expectancy: |
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lifetime of host structure |
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Substitute for or new
materials / method: |
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insulation from petro-chemical sources |
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| Country/s of manufacture: |
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UK |
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| UK distribution location: |
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South Wales |
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532 KB rockwoolcavity.pdf